Updated on 2024/03/26

写真a

 
HASEGAWA, Hiroshi
 
Organization
Graduate School of Engineering Information and Communication Engineering 1 Professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Electrical Engineering, Electronics, and Information Engineering
Title
Professor
Contact information
メールアドレス

Degree 1

  1. Doctor of Engineering ( Tokyo Institute of Technology ) 

Research Interests 1

  1. Photonic Network, Multi-dimensional Signal Processing, Time-Frequency Analysis

Research Areas 1

  1. Others / Others  / Communication/Network Engineering

Research History 3

  1. Professor (Nagoya University)

    2019.7

      More details

    Country:Japan

  2. Associate Professor (Nagoya University)

    2005.4 - 2019.6

      More details

    Country:Japan

  3. Assistant Professor (Tokyo Institute of Technology)

    2000.4 - 2005.3

      More details

    Country:Japan

Education 3

  1. Tokyo Institute of Technology   Graduate School, Division of Science and Engineering   Department of Electrical and Electronic Engineering

    - 2000

      More details

    Country: Japan

  2. Tokyo Institute of Technology   Graduate School, Division of Science and Engineering   Department of Electrical and Electronic Engineering

    - 1997

      More details

    Country: Japan

  3. Tokyo Institute of Technology   Faculty of Engineering   Department of Electrical and Electronic Engineering

    - 1995

      More details

    Country: Japan

Professional Memberships 2

  1. The Institute of Electronics, Information and Communication Engineers   a member of editorial committees

    2005.4

  2. IEEE

Committee Memberships 45

  1. IEEE/Optica Journal of Optical Communications and Networking   Associate Editor  

    2019.5   

  2. IEEE Globecom 2023 – Optical Networks and Systems Symposium   TPC Member  

    2023.3 - 2023.12   

  3. 2023 International Conference on Optical Network Design and Modelling (ONDM2022)   TPC  

    2022.10 - 2023.5   

  4. IEEE Globecom 2022 – Optical Networks and Systems Symposium   TPC Member  

    2022.3 - 2022.12   

  5. International Conference on Photonics in Switching and Computing (PSC2022)   TPC Category Chair  

    2021.10 - 2022.7   

  6. 2022 International Conference on Optical Network Design and Modelling (ONDM2022)   TPC  

    2021.10 - 2022.5   

  7. 2021 IEEE Global Communications Conference: Optical Networks and Systems   TPC Member  

    2021.6 - 2021.12   

  8. The 27th Optoelectronics and Communications Conference (OECC 2022)   General Affairs Committee  

    2019.10 - 2022.7   

  9. IEEE Global Communications Conference 2019   TPC member (Optical Networks and Systems)  

    2019.1 - 2019.12   

  10. 20th Opto-Electronics and Communications Conference /Photonics in Switching and Computing 2019 (OECC/PSC2019)   Gereral Affairs Committee and Technical Program Commitee  

    2018.7 - 2019.7   

  11. International Conference on Computing, Networking and Communications (ICNC 2017))   Workshop Co-chair  

    2016.6 - 2017.3   

  12. Globecom 2016   TPC member  

    2016.3 - 2016.12   

  13. 17th Opto-Electronics and Communications Conference /Photonics in Switching 2016 (OECC/PS2016)   Gereral Affairs Committee, Technical Program Commitee, and Workshop Organizer  

    2015.7 - 2016.7   

  14. International Conference on Communications 2016 (ICC2016)   TPC member  

    2015.6 - 2016.6   

  15. International Conference on Computing, Networking and Communications (ICNC 2016)   TPC  

    2015.6 - 2016.3   

  16. 7th International Workshop on Reliable Networks Design and Modeling (RNDM2015)   TPC member  

    2014.10 - 2015.12   

  17. International Conference on Communications 2015 (ICC2015)   TPC member  

    2014.10 - 2015.6   

  18. 19th International Conference on Optical Networking Design and Modeling (ONDM 2015)   TPC member  

    2014.10 - 2015.5   

  19. 電子情報通信学会通信ソサイエティ研専運営会議   財務幹事  

    2014.6 - 2016.5   

  20. International Conference on Computing, Networking and Communications (ICNC 2015)   TPC  

    2014.6 - 2015.3   

  21. 6th International Workshop on Reliable Networks Design and Modeling (RNDM2014)   TPC member  

    2014.3 - 2014.12   

  22. 10th International Workshop on the Design of Reliable Communication Networks (DRCN2014)   TPC member  

    2014.3   

  23. International Conference on Computing, Networking and Communications (ICNC 2014)   TPC  

    2014.2   

  24. 18th International Conference on Optical Networking Design and Modeling (ONDM 2014)   TPC member  

    2013.11 - 2014.5   

  25. Asia Communications and Photonics Conference and Exhibition (ACP2013)   Technical Program Commitee  

    2013.11   

  26. International Conference on Communications 2014 (ICC2014)   TPC member  

    2013.10 - 2014.6   

  27. Photonics in Switching and Conference on Optical Internet 2013(PS/COIN2013)   TPC member  

    2013.7   

  28. 9th International Workshop on the Design of Reliable Communication Networks (DRCN2013)   TPC member  

    2013.3   

  29. Asia Communications and Photonics Conference and Exhibition (ACP2012)   Technical Program Commitee  

    2012.11   

  30. Photonics in Switching 2012(PS2012)   TPC member  

    2012.9   

  31. Asia Communications and Photonics Conference and Exhibition (ACP2011)   Technical Program Commitee  

    2011.11   

  32. International Conference on Communications 2012 (ICC2012)   TPC member  

    2011.10 - 2012.6   

  33. 8th International Workshop on the Design of Reliable Communication Networks (DRCN2011)   TPC member  

    2011.10   

  34.   TPC member  

    2011.8 - 2011.12   

  35. Photonics in Switching and Conference on Optical Internet 2011(PS/COIN2011)   TPC member  

    2011.7   

  36. International Conference on Communications 2011 (ICC2011)   TPC member  

    2011.6   

  37. 8th International Workshop on the Design of Reliable Communication Networks (DRCN2011)   TPC member  

    2011.3 - 2011.10   

  38. Asia Communications and Photonics Conference and Exhibition (ACP2010)   Technical Program Commitee  

    2010.12   

  39. 15th Opto-Electronics and Communications Conference (OECC2010)   TPC member  

    2010.8   

  40. 電子情報通信学会 東海支部   庶務幹事  

    2009.6 - 2011.5   

  41. 2008 International Symposium on Information Theory and its Applications (ISITA2008)   Publication  

    2008.12   

  42. Conference on Optical Internet 2008 (COIN2008)   TPC member  

    2008.7   

  43. 12th Opto-Electronics and Communications Conference (OECC2007)   Commitee  

    2007.7   

  44. 電子情報通信学会 フォトニックネットワーク研究専門委員会   顧問  

    2005.6   

  45. 情報理論とその応用シンポジウム   実行委員(総務担当)  

    2002.11   

▼display all

Awards 10

  1. 第76回(令和元年度)論文賞

    2020.6   電子情報通信学会  

    竹下仁士、松本恵一、長谷川浩、佐藤 健一、Emmanuel Le Taillandier de GABORY

     More details

    Award type:Honored in official journal of a scientific society, scientific journal 

  2. 功労顕彰状

    2019.9   電子情報通信学会  

    長谷川 浩

     More details

    Award type:Award from Japanese society, conference, symposium, etc. 

  3. Optical Communications Best Technical Paper Award, SPIE Photonics West 2018

    2018.2   SPIE  

    N. Hiroki, Y. Mori, H. Hasegawa, and K. Sato

     More details

    Award type:Award from international society, conference, symposium, etc.  Country:United States

  4. Best Paper Award

    2016.7  

     More details

    Country:Japan

  5. 基礎・境界ソサイエティ編集活動感謝状

    2013.9   電子情報通信学会  

     More details

    Country:Japan

  6. Best Paper Award

    2013.7   The 18th OptoElectronics and Communications Conference (OECC2013)  

  7. Best Paper Award

    2009.2   the 13th Conference on Optical Network Design and Modeling (ONDM2009)  

  8. Best Tutorial Paper Award

    2008.9   The Institute of Electronics, Information and Communication Engineers (IEICE)  

     More details

    Country:Japan

  9. IEICE Young Scientist Award

    2005   The Institute of Electronics, Information and Communication Engineers (IEICE)  

     More details

    Country:Japan

  10. Young Scientist Award

    2003   Society of Information Theory and Its Application  

     More details

    Country:Japan

▼display all

 

Papers 680

  1. Cost-Effective Capacity Enhancement of Survivable Optical Networks by Supplemental Band Expansion and Backup Resource Sharing Reviewed

    Daisuke Saito, Yojiro Mori, Kohei Hosokawa, Shigeyuki Yanagimachi, Hiroshi Hasegawa

    OFC2024     page: W1C.2   2024.3

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  2. Capacity-Bound Evaluation and Routing and Spectrum Assignment for Elastic Optical Path Networks with Distance-Adaptive Modulation Reviewed International coauthorship

    Kenji Cruzado, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa

    OFC2024     page: W3C.6   2024.3

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  3. Intra-datacenter Optical Circuit Switch Architecture with Multi-band Transmission Technologies Reviewed

    Takuma Kuno, Reiji Higuchi, Kazato Satake, Yuasa Hayato, Yojiro Mori, Hiroshi Hasegawa

    OFC2024     page: M2G.3   2024.3

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  4. トラフィック分布解析に基づく領域分割とマルチバンド仮想バイパスリンクの順次導入による逐次的ネットワーク容量拡張法

    湯浅颯士・クルザド ケンジ・森 洋二郎・細川晃平・柳町成行・長谷川 浩

    電子情報通信学会 フォトニックネットワーク研究会     page: PN2023-86   2024.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  5. 空間分割多重及びマルチバンド光ネットワーク実現に向けた空間・波長ハイブリッド光ノード構成 Invited International coauthorship

    久野 拓真,落合 匠郎,樋口 怜治,佐竹 風人,森 洋二郎,Shih-Chun Lin,松浦 基晴,Suresh Subramaniam,長谷川 浩

    電子情報通信学会 フォトニックネットワーク研究会     page: PN2023-73   2024.3

     More details

    Authorship:Last author, Corresponding author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  6. カットセット解析に基づくエラスティック光ネットワークの容量上界推定 Invited

    クルザド ケンジ, 森洋二郎, 長谷川浩

    電子情報通信学会 フォトニックネットワーク研究会     page: PN2023-74   2024.3

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  7. 異粒度ルーティングを使用したレイヤ化ネットワーク

    湯浅 颯士、クルザド ケンジ、森 洋二郎、細川 晃平、柳町 成行、長谷川 浩

    2024年電子情報通信学会総合大会     page: B-12-08   2024.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  8. マルチドメインネットワークにおける境界での波長変換戦略及び性能評価

    下井 舜也、湯浅 颯士、クルザド ケンジ、森 洋二郎、細川 晃平、柳町 成行、長谷川 浩

    2024年電子情報通信学会総合大会     page: B-12-10   2024.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  9. Demonstration of spectrum narrowing mitigation based on recurrent neural networks for ultra-dense WDM networks Reviewed

    Ryuta Shiraki, Yojiro Mori, and Hiroshi Hasegawa

    Optics Letters   Vol. 49 ( 4 ) page: 947 - 950   2024.2

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

  10. ノード内接続グラフの逐次的縮退による高信頼化フレキシブル波長群ルーティングネットワークの設計法 Invited

    岩井 貴寛, 和田 篤生, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 349,PN2023-67 ) page: 102 - 106   2024.1

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  11. Bandwidth Abundant Optical Networking Enabled by Spatially-Jointed and Multi-Band Flexible Waveband Routing Invited Reviewed

    Hiroshi Hasegawa

    IEICE Transactions on Communications   Vol. E107-B ( 1 ) page: 16 - 26   2024.1

     More details

    Authorship:Lead author, Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

  12. Cost-effective network capacity upgrade by heterogeneous wavelength division multiplexing density with bandwidth-variable virtual direct links Reviewed

    Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa

    IEICE Transactions on Communications   Vol. E107-B ( 1 ) page: 39 - 48   2024.1

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

  13. ナイキストWDMシステムにおける波長多重分離法 Invited

    久野 拓真, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 267,PN2023-44 ) page: 43 - 49   2023.11

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  14. サブシステムモジュラ構成ノードを導入したネットワークの光パス反復収容に基づく設計法 Invited

    和田 篤生, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 267,PN2023-45 ) page: 50 - 54   2023.11

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  15. Neural Networkに基づくディジタル信号処理 ~ 大容量光ファイバ通信システムの実現に向けて ~ Invited

    落合 匠郎, 樋口 怜治, 久野 拓真, 白木 隆太, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. rising2023   page: 50 - 54   2023.10

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  16. Experimental Demonstration of 128×128 Optical Cross-connects with 2.45 Pbps Throughput Reviewed International coauthorship

    Takuro Ochiai, Takuma Kuno, Yojiro Mori, Ryuji Munakata, Yojiro Mori, Shi-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, and Hiroshi Hasegawa

    European Conference on Optical Communication     page: paper Th.B.6.4   2023.10

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  17. Flexible-Granularity Switching Node Architecture for Spatial-Division and Multi-Band Optical Networks Invited Reviewed

    Hiroshi Hasegawa

    European Conference on Optical Communication     2023.10

     More details

    Authorship:Lead author, Last author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

  18. Introduction to the GLOBECOM 2022 Optical Networks and Systems Symposium Special Issue International coauthorship

    Hasegawa, H; Jue, J; Sivalingam, K; Subramaniam, S

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 15 ( 10 ) page: ONS1 - ONS2   2023.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.506708

    Web of Science

  19. Transceiver-impairment Mitigation Enabled by Adaptive Symbol Decision with Neural Networks Reviewed

    Takuro Ochiai, Reiji Higuchi, Takuma Kuno, Ryuta Shiraki, Yojiro Mori, and Hiroshi Hasegawa

    International Conference on Photonics in Switching and Computing 2023 (PSC2023)     page: paper Fr2B.2   2023.9

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  20. Neural Network を用いた量子化雑音と IQ 不均衡の同時補償技術

    落合 匠郎,樋口 怜治,久野 拓真,白木 隆太,森 洋二郎,長谷川 浩

    電子情報通信学会 ソサイエティ大会     page: B-12-11   2023.9

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  21. Transceiver-impairment Mitigation Enabled by Adaptive Symbol Decision with Neural Networks

    Ochiai, T; Higuchi, R; Kuno, T; Shiraki, R; Mori, Y; Hasegawa, H

    2023 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING AND COMPUTING, PSC     2023.9

     More details

    Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/PSC57974.2023.10297285

    Web of Science

  22. 4.71-Pbps-Throughput Multiband OXC Based on Space- and Wavelength-Granular Hybrid Switching Reviewed International coauthorship

    Kuno, T; Ochiai, T; Higuchi, R; Satake, K; Cruzado, K; Munakata, R; Mori, Y; Lin, SC; Matsuura, M; Subramaniam, S; Hasegawa, H

    2023 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING AND COMPUTING, PSC     2023.9

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/PSC57974.2023.10297168

    Web of Science

  23. Effective Capacity Estimation Based on Cut-Set Load Analysis in Optical Path Networks Reviewed International coauthorship

    Cruzado, K; Mori, Y; Lin, SC; Matsuura, M; Subramaniam, S; Hasegawa, H

    2023 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING AND COMPUTING, PSC     2023.9

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/PSC57974.2023.10297165

    Web of Science

  24. Cost-effective network capacity upgrade by heterogeneous wavelength division multiplexing density with bandwidth-variable virtual direct links Invited Reviewed

    Hayashi Kazuki, Mori Yojiro, Hasegawa Hiroshi

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 15 ( 9 ) page: D23 - D32   2023.9

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.485116

    Web of Science

  25. リンク群単位での負荷分散を考慮したネットワーク容量上限推定および経路波長割当法 Invited

    クルザド ケンジ, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 168,PN2023-23 ) page: 35 - 39   2023.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  26. ディジタルサブキャリア伝送方式におけるレーザ位相雑音と波長分散の相互作用評価 Invited

    佐竹 風人, 森 洋二郎, 白木 隆太, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 168,PN2023-33 ) page: 88 - 91   2023.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  27. 2.45Pbpsスループットを実現する波長・空間ハイブリッド光クロスコネクトの提案と実証 Invited International coauthorship

    落合 匠郎, 久野 拓真, 棟方 隆司, 森 洋二郎, Shih-Chun Lin, 松浦 基晴, Suresh Subramaniam, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 168,PN2023-30 ) page: 73 - 77   2023.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  28. マルチバンド仮想バイパスリンクを用いた高信頼ネットワーク大容量化手法 Invited

    齊藤 大介, 森 洋二郎, 細川 晃平, 柳町 成行, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 168,PN2023-26 ) page: 55 - 58   2023.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  29. 短距離コヒーレント光通信に適する変復調方式

    樋口 怜治,森 洋二郎,白木 隆太,長谷川 浩

    電気・電子・情報関係学会東海支部連合大会     2023.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  30. Architecture and performance evaluation of fiber-granularity routing networks with supplemental grooming by wavelength conversion Reviewed

    Matsuo Takeshi, Shiraki Ryuta, Mori Yojiro, Hasegawa Hiroshi

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 15 ( 8 ) page: 541 - 552   2023.8

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.486314

    Web of Science

  31. Beyond 5G研究開発を促進する国内MANモデルへの期待とモデル設計法 Invited

    橘 拓至, 廣田 悠介, 鈴木 恵治郎, 釣谷 剛宏, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 137,CS2023-51 ) page: 126 - 130   2023.7

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  32. Modulation and Demodulation Method Robust against Laser Phase Noise Reviewed

    Reiji Higuchi, Takuma Kuno, Ryuta Shiraki, Yojiro Mori, and Hiroshi Hasegawa

    Conference on Lasers and Electro-Optics/Europe – European Quantum Electronics     page: paper CI-6.4   2023.6

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  33. 回帰型ニューラルネットワークを用いたスペクトル狭窄効果抑制法 Invited

    白木 隆太, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 123 ( 70,PN2023-15 ) page: 65 - 71   2023.6

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  34. Policy-Based Grooming, Route, Spectrum, and Operational Mode Planning in Dynamic Multilayer Networks

    Tanaka Takafumi, Hasegawa Hiroshi

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E106B ( 6 ) page: 489 - 499   2023.6

     More details

    Authorship:Last author  

    DOI: 10.1587/transcom.2022EBP3106

    Web of Science

  35. Metropolitan Area Network Model Design Using Regional Railways Information for Beyond 5G Research

    Tachibana Takuji, Hirota Yusuke, Suzuki Keijiro, Tsuritani Takehiro, Hasegawa Hiroshi

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E106-B ( 4 ) page: 296 - 306   2023.4

  36. スペクトラム狭窄耐力を向上する等化器生成法

    石川誉聡・白木隆太・森 洋二郎・長谷川 浩

    電子情報通信学会2023年総合大会予稿集     page: B-12-14   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  37. ニューラルネットワークシンボル判定器の特性変動耐性評価

    加川功己・白木隆太・森 洋二郎・長谷川 浩

    電子情報通信学会2023年総合大会予稿集     page: B-10-18   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  38. 短距離コヒーレント光通信システムに適する低損失変調方式

    樋口怜治・白木隆太・森 洋二郎・長谷川 浩

    電子情報通信学会2023年総合大会予稿集     page: B-10-18   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  39. 高次多値変調信号を用いたレーザ線幅の常時監視技術

    土田直樹・久野拓真・白木隆太・森 洋二郎・長谷川 浩

    電子情報通信学会2023年総合大会予稿集     page: B-12-9   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  40. 無瞬断光パス再配置を導入したファイバ粒度ルーティング光ネットワークの動的制御

    内田航平・白木隆太・森 洋二郎・長谷川 浩

    電子情報通信学会2023年総合大会予稿集     page: B-12-7   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  41. Cost-Effective Network Capacity Enhancement With Multi-Band Virtual Bypass Links Reviewed

    Daisuke Saito, Yojiro Mori , Kohei Hosokawa, Shigeyuki Yanagimachi, Hiroshi Hasegawa

    Optical Fiber Communication Conference (OFC) 2023     2023.3

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

  42. Architecture and Performance Evaluation of Bundled-Path-Routing Multi-Band Optical Networks Reviewed International coauthorship

    Ryuji Munakata, Takuma Kuno, Yojiro Mori,Shih-Chun Lin,Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa

    Optical Fiber Communication Conference (OFC) 2023     2023.3

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

  43. ナイキスト波長分割多重技術を活用した超大容量光スイッチ Invited

    久野 拓真, 三ツ矢 拓誠, 森 洋二郎, 長谷川 浩, 佐藤 健一

    電子情報通信学会技術研究報告   Vol. 122 ( 398, PN2022-44 ) page: 13 - 18   2023.3

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  44. 空間分割多重光ネットワークにおける動的光パス検索に基づくルーティングとコア・スペクトル割当法

    黄 宇軒, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 398, PN2022-68 ) page: 142 - 146   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  45. 波長変換によるグルーミングを導入したファイバ粒度ルーティングネットワーク Invited

    松尾 武, 白木 隆太, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 398, PN2022-51 ) page: 47 - 51   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  46. 短距離通信用ディジタルコヒーレント受信器を用いたデータセンタ光スイッチネットワーク Invited

    三ツ矢 拓誠, 久野 拓真, 森 洋二郎, 長谷川 浩, 佐藤 健一

    電子情報通信学会技術研究報告   Vol. 122 ( 398, PN2022-50 ) page: 43 - 46   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  47. グループ化光パスルーティングを用いたマルチバンド光ネットワーク Invited

    棟方 隆司, 久野 拓真, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 398, PN2022-49 ) page: 38 - 42   2023.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  48. 選択的なリンク周波数帯域拡大によるネットワーク容量拡張法

    齊藤 大介, 森 洋二郎, 細川 晃平, 柳町 成行, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 350 ) page: 30 - 34   2023.1

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  49. レーザ特性の常時監視技術

    土田 直樹, 久野 拓真, 白木 隆太, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 350 ) page: 39 - 42   2023.1

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  50. 量子化雑音耐力を備えるディジタルコヒーレント受信器

    落合 匠郎, 白木 隆太, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 350 ) page: 35 - 38   2023.1

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  51. Efficient Network Capacity Expansion by Differentiated WDM-Density with Bandwidth-Variable Virtual Direct Links Reviewed

    Kazuki Hayashi, Yojiro Mori, Hiroshi Hasegawa

    2022 IEEE Future Networks World Forum (FNWF’22)     page: 310 - 313   2022.11

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/FNWF55208.2022.00061

  52. 短距離光ファイバ通信システムのための低演算量ディジタルコヒーレント受信器 的設計・制御法 Invited

    久野 拓真, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 198 ) page: 60 - 63   2022.10

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  53. Reinforcement-Learning-based Network Design and Control with Stepwise Reward Variation and Link-Adjacency Embedding Reviewed

    Kenji Cruzado, Ryuta Shiraki, Yojiro Mori, Takafumi Tanaka, Katsuaki Higashimori, Fumikazu Inuzuka, Takuya Ohara, Hiroshi Hasegawa

    2022 European Conference on Optical Communication (ECOC)     page: 1 - 3   2022.9

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  54. Highly Reliable and Large-Scale Optical Circuit Switch for Intra-Datacentre Network Reviewed

    Takumi Mitsuya, Takuro Ochiai, Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    European Conference on Optical Communication (ECOC) 2022     page: 1 - 3   2022.9

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  55. Spatially-Jointed Flexible Waveband Routing Optical Networks Adopting Shared Path Protection Reviewed International coauthorship

    Ryuji Munakata; Yojiro Mori; Suresh Subramaniam; Masahiko Jinno; Hiroshi Hasegawa

    2022 12th International Workshop on Resilient Networks Design and Modeling   ( #1570810790 )   2022.9

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  56. RNN-Based Demodulation Framework for Spectrum Narrowing in Ultra-Dense WDM Networks Reviewed International journal

    R. Shiraki, Y. Mori and H. Hasegawa

    IEEE Photonics Technology Letters   Vol. 34 ( 18 ) page: 993 - 996   2022.9

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/LPT.2022.3196866

  57. DRAMA+: Disaster Management With Mitigation Awareness for Translucent Elastic Optical Networks Reviewed International coauthorship International journal

    R. Zou, H. Hasegawa, M. Jinno and S. Subramaniam

    IEEE Transactions on Network and Service Management   Vol. 19 ( 3 ) page: 2587 - 2599   2022.9

     More details

    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/TNSM.2022.3189362

  58. ファイバ粒度ルーティングネットワークの設計法

    松尾武,白木隆太,森洋二郎,長谷川浩

    令和4年度 電気・電子・情報関係学会東海支部連合大会   ( L2-6 )   2022.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  59. データセンタ向け高信頼波長ルーティングスイッチ

    三ツ矢 拓誠, 落合 匠郎, 久野 拓真, 森 洋二郎, 長谷川 浩, 佐藤 健一

    電子情報通信学会技術研究報告   Vol. 122 ( 169 ) page: 60 - 64   2022.8

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  60. スペクトラム狭窄の影響を緩和する予等化フィルタの生成法

    石川 誉聡, 白木 隆太, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 169 ) page: 1 - 4   2022.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  61. 階段型報酬制御とリンク隣接性を用いた光ネットワーク知的設計・制御法

    クルザド ケンジ, 白木 隆太, 森 洋二郎, 田中 貴章, 東森 一晃, 犬塚 史一, 大原 拓也, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 122 ( 169 ) page: 31 - 35   2022.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  62. Constellation-Shaped 64QAM Robust against Phase Noise in Intra-Datacenter Networks Reviewed

    J. Sakano, R. Shiraki, Y. Mori and H. Hasegawa

    2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC)     2022.7

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.23919/OECC/PSC53152.2022.9850095

  63. Power-saving Aware SDM Photonic Node with the Throughput Scalable to over Peta bit Invited Reviewed

    Fumikazu Inuzuka, Hiroshi Hasegawa, Kohki Shibahara, Hidenori Takahashi, Takahiro Tsuritani, Kazunori Seno, Naru Nemoto, Emmanuel Le Taillandier de Gabory, Shigeyuki Yanagimachi, Taiji Sakamoto, Kazuhide Nakajima, Masanori Takahashi, Ryuichi Sugizaki, Ryo Nagase, Ken-ichi Sato, Yutaka Miyamoto

    2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC)     2022.7

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.23919/OECC/PSC53152.2022.9850034

  64. Optical Performance Monitoring Using Adaptive FIR Filters for Constellation-Shaped Higher-Order QAM Signals Reviewed

    N. Tsuchida, T. Kuno, J. Sakano, Y. Mori and H. Hasegawa

    2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC)     2022.7

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.23919/OECC/PSC53152.2022.9849979

  65. Design and evaluation of a reconfigurable optical add-drop multiplexer with flexible wave-band routing in SDM networks Reviewed International coauthorship International journal

    Kuno Takuma, Mori Yojiro, Subramaniam Suresh, Jinno Masahiko, Hasegawa Hiroshi

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 14 ( 4 ) page: 248 - 256   2022.4

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.450504

    Web of Science

  66. 位相雑音耐力を向上する変復調方式最適化

    坂野 純・森 洋二郎・長谷川 浩

    電子情報通信学会2022年総合大会予稿集     page: B-12-15   2022.3

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  67. 波長・空間スーパーチャネルを用いたデータセンタ内光スイッチ

    三ツ矢拓誠・久野拓真・森 洋二郎・長谷川 浩・佐藤健一

    電子情報通信学会2022年総合大会予稿集     page: B-12-4   2022.3

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  68. 共有型パスプロテクションを導入した高信頼空間結合型 Flexible Waveband Routing ネットワーク

    棟方隆司・森 洋二郎・長谷川 浩

    電子情報通信学会2022年総合大会予稿集     page: B-12-13   2022.3

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  69. BI-7 空間分割多重技術の最新研究開発動向:(第一部)将来の空間多重/超並列光ノード・光ネットワーク技術 Invited

    長谷川 浩

    電子情報通信学会2022年総合大会予稿集     page: BI-7-1   2022.3

     More details

    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  70. Measurement method of transmitter IQ imbalance in digital coherent communication systems Reviewed

    Naoki Tsuchida, Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    Proc. SPIE 12027, Metro and Data Center Optical Networks and Short-Reach Links V     2022.3

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  71. 可変ルーティング粒度および波長多重密度を導入した光ネットワークの設計法

    林 和輝・森 洋二郎・長谷川 浩

    信学技報   Vol. 121 ( 386 ) page: PN2021-83   2022.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  72. 受信信号を用いたレーザ線幅測定を可能とする光性能監視技術

    土田直樹・久野拓真・森 洋二郎・長谷川 浩

    信学技報   Vol. 121 ( 386 ) page: PN2021-81   2022.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  73. デジタル信号処理の不完全性を考慮した光変復調方式の最適化

    坂野 純・森 洋二郎・長谷川 浩

    信学技報   Vol. 121 ( 386 ) page: PN2021-85   2022.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  74. 多機能かつ高性能ディジタルコヒーレント受信器

    久野拓真・森 洋二郎・長谷川 浩

    信学技報   Vol. 121 ( 386 ) page: PN2021-60   2022.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  75. 高信頼空間結合型Flexible Waveband Routingネットワーク Invited

    棟方 隆司, 森 洋二郎, 長谷川 浩

    電子情報通信学会技術研究報告   Vol. 121 ( 386 ) page: 65 - 70   2022.3

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  76. Demonstration of High-throughput Intra-datacenter Switches Using Interleaved AWGs for Nyquist WDM Reviewed

    Takuma Kuno, Takumi Mitsuya, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    Optical Fiber Communication Conference     page: Th3A.2   2022.3

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  77. Design and Dynamic Control of Fiber-Granular Routing Networks with Next-Generation Optical Paths Reviewed

    Takeshi Matsuo, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa

    Optical Fiber Communication Conference     2022.3

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  78. ナイキスト波長分割多重技術による1ペタビット超級光スイッチ

    久野 拓真, 三ツ矢 拓誠, 森 洋二郎, 長谷川 浩, 佐藤 健一

    電子情報通信学会技術研究報告   Vol. 121 ( 350 ) page: 41 - 45   2022.1

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  79. Highly Reliable and Large-Scale Optical Circuit Switch for Intra-Datacentre Networks

    Mitsuya Takumi, Ochiai Takuro, Kuno Takuma, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2022 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC)     2022

     More details

  80. Fragmentation-Minimized Periodic Network-Bandwidth Expansion Employing Aligned Channel Slot Allocation in Flexible Grid Optical Networks

    Hasegawa Hiroshi, Yasuda Takuma, Mori Yojiro, Sato Ken-ichi

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E104B ( 12 ) page: 1514 - 1523   2021.12

     More details

    Authorship:Lead author, Corresponding author   Language:Japanese  

    DOI: 10.1587/transcom.2021EBP3027

    Web of Science

  81. Design and control of highly spectrally efficient photonic networks enabled by fiber-granular routing on overlaid ring-shaped topologies

    Shiraki Ryuta, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-Ichi, Monti Paolo

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 13 ( 11 ) page: 233 - 243   2021.11

     More details

    Authorship:Corresponding author   Language:Japanese  

    DOI: 10.1364/JOCN.428571

    Web of Science

  82. Bandwidth-abundant optical networks for cost-effective accommodation of 10n times traffic in the future Invited

    長谷川浩

        2021.10

     More details

    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  83. マルチコアファイバネットワーク実現に向けた光ノード構成

    久野拓真・森 洋二郎・長谷川 浩

    信学技報   Vol. 121 ( 165 ) page: PN2021-19   2021.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  84. 空間結合型Flexible Waveband Routing及びパス冗長化に基づく高信頼化大容量光ネットワーク構成法

    棟方 隆司・森 洋二郎・長谷川 浩

    信学技報   Vol. 121 ( 165 ) page: 41 - 45   2021.8

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  85. Dynamic Routing and Spectrum Allocation Based on Actor-critic Learning for Multi-fiber Elastic Optical Networks Invited Reviewed

    Y. Wang, Y. Mori, and H. Hasegawa

    Photonics in Switching and Computing 2021 (PSC2021)     page: W1B.3   2021.8

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  86. Enhancing the flexibility and functionality of SCNs: demonstration of evolution toward any-core-access, nondirectional, and contentionless spatial channel cross-connects [Invited] International coauthorship

    Jinno Masahiko, Ishikawa Tsubasa, Kodama Takahiro, Hasegawa Hiroshi, Subramaniam Suresh

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 13 ( 8 ) page: D80 - D92   2021.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.423997

    Web of Science

  87. Measurement of Transmitter IQ Skew in High-Speed Digital Coherent Communication System Reviewed

    Naoki Tsuchida, Takuma Kuno, Yojiro Mori and Hiroshi Hasegawa

    26th Optoelectronic and Communications Conference (OECC 2021)     page: #3582879   2021.7

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  88. Performance Evaluation of Dynamic Fiber-Granular Routing Networks with Next-Generation Optical Paths Invited Reviewed

    Takeshi Matsuo, Ryuta Shiraki, Yojiro Mori, and Hiroshi Hasegawa

    26th Optoelectronic and Communications Conference (OECC 2021)     page: #3582898   2021.7

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  89. Design and Performance Evaluation of Resilient Optical Path Networks That Adopt Spatially-Jointed Flexible Waveband Routing Reviewed International coauthorship

    Munakata Ryuji, Mori Yojiro, Subramaniam Suresh, Jinno Masahiko, Hasegawa Hiroshi

    2021 INTERNATIONAL CONFERENCE ON OPTICAL NETWORK DESIGN AND MODELLING (ONDM)     2021.7

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

    Web of Science

  90. Estimation for IQ skew of A Transmitter in Digital Coherent Communication Systems Reviewed

    Tsuchida Naoki, Kuno Takuma, Mori Yojiro, Hasegawa Hiroshi

    2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)     2021.7

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/CLEO/Europe-EQEC52157.2021.9542509

    Web of Science

  91. DRAMA: Disaster Management Algorithm with Mitigation Awareness for Elastic Optical Networks Reviewed International coauthorship

    R. Zou, H. Hasegawa and, S. Subramaniam

    DRCN2021     page: Session3-1   2021.4

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  92. Pre-Filtering Techniques for Spectrum Narrowing Caused by Optical Node Traversal in Ultra-Dense WDM Networks

    Okamura Kazuya, Mori Yojiro, Hasegawa Hiroshi

    IEEE PHOTONICS JOURNAL   Vol. 13 ( 2 )   2021.4

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/JPHOT.2021.3065139

    Web of Science

  93. フォトニックネットワーク分野の教育・研究のオンライン化~名古屋大学の場合~ Invited

    長谷川 浩

    電子情報通信学会2021年総合大会予稿集     page: BI-10-4   2021.3

     More details

    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  94. 高信頼化Flexible Waveband Routingネットワーク

    棟方 隆司・森 洋二郎・長谷川 浩

    電子情報通信学会2021年総合大会予稿集     page: B12-2-2   2021.3

     More details

    Language:Japanese  

  95. 共有型パス冗長化を導入したFlexible Waveband Routing ネットワーク

    棟方隆司, 森 洋二郎, 長谷川 浩

    電子情報通信学会2022年総合大会予稿集     page: B-12-2   2021.3

     More details

    Language:Japanese  

  96. 高信頼化Flexible Waveband Routingネットワークの特性評価

    棟方 隆司・森 洋二郎・長谷川 浩

    電子情報通信学会フォトニックネットワーク研究会 第2種研究会PN研究会学⽣ワークショップ     page: pn2021-stws-10   2021.3

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  97. Experimental Evaluation of Optical Cross-Connects with Flexible Waveband Routing Function for SDM Networks International coauthorship

    Kuno Takuma, Mori Yojiro, Subramaniam Suresh, Jinno Masahiko, Hasegawa Hiroshi

    2021 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)     2021.3

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

    Web of Science

  98. Evaluation of low-complexity digital coherent receivers for short-reach transmission systems

    Kuno Takuma, Mori Yojiro, Hasegawa Hiroshi

    METRO AND DATA CENTER OPTICAL NETWORKS AND SHORT-REACH LINKS IV   Vol. 11712   2021.3

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1117/12.2577542

    Web of Science

  99. DeepDRAMA: Deep Reinforcement Learning-based Disaster Recovery with Mitigation Awareness in EONs

    Zou Rujia, Bury Nathaniel, Hasegawa Hiroshi, Jinno Masahiko, Subramaniam Suresh

    2021 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)     2021

     More details

  100. Joint Pre-emphasis and Partial-response Coding for Spectrum Narrowing Caused by Repeated Optical-node Traversal in Ultra-dense WDM Networks Invited Reviewed

    E. Honda, Y. Mori, H. Hasegawa and K. Sato

    2020 European Conference on Optical Communications (ECOC)     page: 1 - 4   2020.11

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/ECOC48923.2020.9333222

  101. Low-Complexity DSP Configuration for Short-Reach Transmission Systems Reviewed

    T. Kuno, Y. Mori, and H. Hasegawa

    25th Optoelectronics and Communications Conference (OECC 2020)     page: VP95   2020.10

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  102. Evaluation of Optical Circuit Switches for SDM-Based Intra-Datacenter Networks Reviewed

    E. Honda, Y. Mori, H. Hasegawa, and K. Sato

    25th Optoelectronics and Communications Conference (OECC 2020)     page: VP95   2020.10

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  103. Resource Assignment based on Core-State Value Evaluation to Handle Crosstalk and Spectrum fragments in SDM Elastic Optical Networks Reviewed

    Y. Wang, Y. Mori, and H. Hasegawa

    25th Optoelectronics and Communications Conference (OECC 2020)     page: T8-2.6   2020.10

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (international conference proceedings)  

  104. 空間分割多重光ネットワーク実現に向けた大容量光ノード構成法 Invited Reviewed

    久野拓真・森 洋二郎・長谷川 浩

    信学技報   Vol. 120 ( 137 ) page: PN2020-16   2020.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  105. 空間分割多重光空間分割多重光ネットワークにおける経路・コア・波長割当法ネットワーク実現に向けた大容量光ノード構成法 Invited Reviewed

    王 洋・森 洋二郎・長谷川 浩

    信学技報   Vol. 120 ( 137 ) page: PN2020-20   2020.8

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  106. 光ネットワーク最適化の基礎 Invited

    長谷川浩

    電子情報通信学会 光通信システム研究会 (OCS) OCS Summer School 2020     page: 講演 No.2   2020.7

     More details

    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  107. Link-protection and FIPP p-cycle designs in translucent elastic optical networks

    Zou Rujia, Hasegawa Hiroshi, Jinno Masahiko, Subramaniam Suresh

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 12 ( 7 ) page: 163 - 176   2020.7

     More details

    Language:Japanese  

    DOI: 10.1364/JOCN.382561

    Web of Science

  108. 強化学習に基づく光ネットワーク設計 ~ 知的経路スペクトラム選択法 Invited

    白木隆太・森 洋二郎・長谷川 浩・佐藤健一

      Vol. 120 ( 71 ) page: PN2020-9   2020.6

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  109. A 2.15 Pbps Throughput Optical Cross-Connect with Flexible Waveband Routing Reviewed

    T. Kuno, Y. Mori, and H. Hasegawa

    2020 IEEE 8th International Conference on Photonics (ICP) (ICP2020)     page: on-line   2020.6

     More details

    Language:English  

  110. Assessment of Optical Node Architectures for Building Next Generation Large Bandwidth Networks

    Ganbold Mungun-Erdene, Yasuda Takuma, Mori Yojiro, Hasegawa Hiroshi, Inuzuka Fumikazu, Hirano Akira, Sato Ken-ichi

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E103B ( 6 ) page: 679 - 689   2020.6

     More details

  111. Transmission-Quality-Aware Online Network Design and Provisioning Enabled by Optical Performance Monitoring

    Kayano Keisuke, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi, Oda Shoichiro, Yoshida Setsuo, Hoshida Takeshi

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E103B ( 6 ) page: 670 - 678   2020.6

     More details

  112. Design of seamlessly and limitlessly expandable OXC and verification tests on its versatile applicability Reviewed

    R. Hashimoto, Y. Mori, H. Hasegawa and K. Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 12 ( 5 ) page: 99-108   2020.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  113. High-Throughput and High-Port-Count Optical Cross- Connents Using Flexible Waveband Routing Reviewed

    T. Kuno, Y. Mori, S. Subramaniam, M. Jinno and H. Hasegawa

    2020 International Conference on Optical Network Design and Modeling (ONDM)     2020.5

     More details

    Language:English  

    DOI: doi: 10.23919/ONDM48393.2020.9133005

  114. Design of seamlessly and limitlessly expandable OXC and verification tests on its versatile applicability

    Hashimoto Ryota, Mori Yojiro, Hasegawa Hirioshi, Sato Ken-ichi

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 12 ( 5 ) page: 99 - 108   2020.5

     More details

    Language:Japanese  

    DOI: 10.1364/JOCN.384140

    Web of Science

  115. コア間干渉及び周波数断片化を考慮した空間多重光ネットワーク制御法

    王 洋・森 洋二郎・長谷川 浩

    電子情報通信学会2020年総合大会予稿集     page: B12-6   2020.3

     More details

    Language:Japanese  

  116. High-throughput optical circuit switch for intra-datacenter networks based on spatial super-channels Reviewed

    E. Honda, Y. Mori, H. Hasegawa, and K. Sato

    OFC2020     page: W1F.2   2020.3

     More details

    Language:English  

  117. Dynamically controlled flexible-grid networks based on semi-flexible spectrum assignment and network-state-value evaluation Reviewed

    R. Shiraki, Y. Mori, H. Hasegawa, and K. Sato

    OFC2020     page: paper M1B.4   2020.3

     More details

    Language:English  

  118. SDMネットワークのための光ノード構成法に関する検討

    久野拓真・森 洋二郎・長谷川 浩

    電子情報通信学会フォトニックネットワーク研究会 学生ワークショップ     page: pn2020-stws-3   2020.3

     More details

    Language:Japanese  

  119. 空間分割多重光ネットワークのための光ノード構成

    久野拓真・森 洋二郎・長谷川 浩

    電子情報通信学会技術研究報告   Vol. 119 ( 442 ) page: pp.37-43   2020.3

     More details

    Language:Japanese  

  120. 空間多重ノードアーキテクチャおよびネットワーク設計・制御技術 Invited

    長谷川 浩,佐藤健一

    電子情報通信学会EXAT研究会     page: EXAT2020-03   2020.2

     More details

    Authorship:Lead author   Language:Japanese  

  121. Quasi-Nyquist WDM networks using receiver-side quadrature duo-binary/quaternary spectrum shaping Reviewed

    K. Okamura, Y. Mori, H. Hasegawa, and K. Sato

    SPIE Photonics West2020     page: Paper 11308-12   2020.2

     More details

    Language:English  

  122. Highly spectrally efficient metro networks that adopt fiber-level granular routing on overlaid line-/ring-shaped virtual topologies Reviewed

    R. Shiraki, Y. Mori, H. Hasegawa, K. Sato, and P. Monti

    SPIE Photonics West2020     page: Paper 11308-13   2020.2

     More details

    Language:English  

  123. Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks

    Ito Yusaku, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E103B ( 2 ) page: 118 - 129   2020.2

     More details

  124. 波長分割多重および空間分割多重を用いたデータセンタ向け大容量光スイッチ

    本田 瑛士・森 洋二郎・長谷川 浩・佐藤 健一

    レーザー学会学術講演会第40回年次大会予稿集     page: G04-22p-X   2020.1

     More details

    Language:Japanese  

  125. 波長分割多重および空間分割多重を用いた大容量光スイッチ

    本田瑛士・森 洋二郎・長谷川 浩・佐藤健一

    信学技報   Vol. 119 ( 366 ) page: OCS2019-75   2020.1

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  126. Demonstration of 4.3 Pbps Optical Circuit Switching for Intra-Datacentre Networks Based on Spatial Super-Channels Invited Reviewed

    E. Honda, Y. Mori, H. Hasegawa and K. Sato

    2020 European Conference on Optical Communications (ECOC)     page: 1 - 4   2020

     More details

    Language:Japanese   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/ECOC48923.2020.9333047

    Web of Science

  127. Low-Complexity Digital Coherent Receivers for Short-Reach Transmission Systems

    Kuno Takuma, Mori Yojiro, Hasegawa Hiroshi

    2020 IEEE PHOTONICS CONFERENCE (IPC)     2020

     More details

    Language:Japanese  

    Web of Science

  128. A 2.15 Pbps Throughput Optical Cross-Connect with Flexible Waveband Routing

    Kuno Takuma, Mori Yojiro, Hasegawa Hiroshi

    2020 IEEE 8TH INTERNATIONAL CONFERENCE ON PHOTONICS (ICP)     2020

     More details

  129. Dynamically Controlled Flexible-Grid Networks Based on Semi-Flexible Spectrum Assignment and Network-StateValue Evaluation

    Shiraki Ryuta, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-Ichi

    2020 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)     2020

     More details

    Language:Japanese  

    Web of Science

  130. Resource Assignment based on Core-State Value Evaluation to Handle Crosstalk and Spectrum Fragments in SDM Elastic Optical Networks

    Wang Yang, Mori Yojiro, Hasegawa Hiroshi

    2020 OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC 2020)     2020

     More details

    Language:Japanese  

    Web of Science

  131. Quasi-Nyquist WDM networks using receiver-side quadrature duo-binary/quaternary spectrum shaping

    Okamura Kazuya, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    METRO AND DATA CENTER OPTICAL NETWORKS AND SHORT-REACH LINKS III   Vol. 11308   2020

     More details

    Language:Japanese  

    DOI: 10.1117/12.2544195

    Web of Science

  132. Low-Complexity DSP Configuration for Short-Reach Transmission Systems

    Kuno Takuma, Mori Yojiro, Hasegawa Hiroshi

    2020 OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC 2020)     2020

     More details

    Language:Japanese  

    Web of Science

  133. Joint Pre-emphasis and Partial-response Coding for Spectrum Narrowing Caused by Repeated Optical-node Traversal in Ultra-dense WDM Networks

    Okamura Kazuya, Mori Yojiro, Hasegawa Hiroshi

    2020 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATIONS (ECOC)     2020

     More details

    Language:Japanese  

    Web of Science

  134. Highly spectrally efficient metro networks that adopt fiber-level granular routing on overlaid line-/ring-shaped virtual topologies

    Shiraki Ryuta, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi, Monti Paolo

    METRO AND DATA CENTER OPTICAL NETWORKS AND SHORT-REACH LINKS III   Vol. 11308   2020

     More details

    Language:Japanese  

    DOI: 10.1117/12.2545553

    Web of Science

  135. High-Throughput Optical Circuit Switch for Intra-Datacenter Networks Based on Spatial Super-Channels

    Honda Eiji, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2020 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)     2020

     More details

    Language:Japanese  

    Web of Science

  136. High-Throughput and High-Port-Count Optical Cross-Connents Using Flexible Waveband Routing

    Kuno Takuma, Mori Yojiro, Subramaniam Suresh, Jinno Masahiko, Hasegawa Hiroshi

    2020 INTERNATIONAL CONFERENCE ON OPTICAL NETWORK DESIGN AND MODELING (ONDM)     2020

     More details

    Language:Japanese  

    Web of Science

  137. Evaluation of Optical Circuit Switches for SDM-Based Intra-Datacenter Networks

    Honda Eiji, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2020 OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC 2020)     2020

     More details

    Language:Japanese  

    Web of Science

  138. P-Cycle Design for Translucent Elastic Optical Networks Reviewed

    Rujia Zou, Suresh Subramaniam, Hiroshi Hasegawa, and Masahiko Jinno

    2019 IEEE Global Communications Conference (GLOBECOM)     page: 1-6, ONS1-4   2019.12

     More details

    Language:English  

  139. フォトニックネットワークの知的制御 ~ 強化学習に基づく経路・波長選択法 ~

    白木隆太・森 洋二郎・長谷川 浩・佐藤健一

    電子情報通信学会超知性ネットワーキングに関する分野横断型研究会     page: ポスターとしての予稿提供   2019.11

     More details

    Language:Japanese  

  140. 強化学習に基づく通信需要分布適応型動的光パス制御法

    白木隆太・森 洋二郎・長谷川 浩・佐藤健一

    電子情報通信学会技術研究報告   Vol. 119 ( 290 ) page: pp.23-27   2019.11

     More details

    Language:Japanese  

  141. Intra- and inter-data centre converged networks utilising Kramers-Kronig receivers Reviewed

    E. Honda, Y. Mori, H. Hasegawa, and K. Sato

    ECOC2019     page: Th.1.A.5   2019.9

     More details

    Language:English  

  142. Node architecture and design of spatially jointed flexible waveband routing optical networks Reviewed

    H. Hasegawa, S. Subramaniam, M. Jinno

    ECOC2019     page: Th.1.A.5   2019.9

     More details

    Authorship:Lead author   Language:English  

  143. Improved Optical Amplification Efficiency by using Turbo Cladding Pumping Scheme for Multicore Fiber Optical Networks Reviewed

    Hitoshi TAKESHITA Keiichi MATSUMOTO Hiroshi HASEGAWA Ken-ichi SATO Emmanuel Le Taillandier de GABORY

    IEICE Transactions on Communications   Vol. E102-B ( 8 ) page: -   2019.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  144. Improved Optical Amplification Efficiency by using Turbo Cladding Pumping Scheme for Multicore Fiber Optical Networks Reviewed

    Hitoshi TAKESHITA, Keiichi MATSUMOTO, Hiroshi HASEGAWA, Ken-ichi SATO, and Emmanuel Le Taillandier de GABORY

    IEICE Transactions on Communications   Vol. E102.B (2019) ( 8 ) page: 1579-1589   2019.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  145. Improved Optical Amplification Efficiency by Using Turbo Cladding Pumping Scheme for Multicore Fiber Optical Networks

    Takeshita Hitoshi, Matsumoto Keiichi, Hasegawa Hiroshi, Sato Ken-ichi, de Gabory Emmanuel Le Taillandier

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E102B ( 8 ) page: 1579 - 1589   2019.8

     More details

  146. Dynamic Control of Transparent Optical Networks with Adaptive State-Value Assessment Enabled by Reinforcement Learning Reviewed

    Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    ICTON2019     page: Sa.A3.4   2019.7

     More details

    Language:English  

  147. Switching granularity and intra-node interconnection optimization for large scale optical nodes Invited Reviewed

    Hiroshi Hasegawa and Ken-ichi Sato

    OECC/PSC2019     page: WA2-5   2019.7

     More details

    Language:English  

  148. Feasibility Test of Large-Scale (1,424×1,424) Optical Circuit Switches Utilizing Commercially Available Tunable Lasers Reviewed

    Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    OECC/PSC2019     page: WA1-3   2019.7

     More details

    Language:English  

  149. Evaluation of WSS Characteristics in Highly Dense WDM Networks Reviewed

    Kazuya Okamura, Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    OECC/PSC2019     page: --   2019.7

     More details

    Language:English  

  150. Design and evaluation of quasi-Nyquist WDM networks utilizing widely deployed wavelength-selective switches

    Shiraki Ryuta, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    OPTICS EXPRESS   Vol. 27 ( 13 ) page: 18549 - 18560   2019.6

     More details

    Language:Japanese  

    DOI: 10.1364/OE.27.018549

    Web of Science

  151. Design and evaluation of quasi-Nyquist WDM networks utilizing widely deployed wavelength-selective switches Reviewed

    Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    OSA Optics Express   Vol. 27 ( 13 ) page: 18549-18560   2019.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  152. Design and evaluation of quasi-Nyquist WDM networks utilizing widely deployed wavelength-selective switches Reviewed

    Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    OSA Optics Express   Vol. 27 ( 13 ) page: 18549-18560   2019.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  153. Assessment of Optical Node Architectures for Building Next Generation Large Bandwidth Networks Reviewed

    Mungun-Erdene Ganbold, Takuma Yasuda, Yojiro Mori, Hiroshi Hasegawa, Fumikazu Inuzuka, Akira Hirano, Ken-ichi Sato

    IEICE Transactions on Communications   Vol. E103.B (2020) ( 6 ) page: 679-689   2019.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  154. Efficient Dynamic Routing and Spectrum Assignment for Multifiber Elastic Optical Networks Reviewed

    Jingxin Wu, Suresh Subramaniam, and Hiroshi Hasegawa

    IEEE/OSA J. Opt. Commun. Netw.   Vol. 11 ( 5 ) page: 190-201   2019.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  155. Quasi-Nyquist WDM Networks UsingWidely Deployed Wavelength-Selective Switches Reviewed

    Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    5th International Symposium on Extremely Advanced Transmission Technologies (EXAT2019)     page: poster (+ 1-page paper)   2019.5

     More details

    Language:English  

  156. Efficient Dynamic Routing and Spectrum Assignment for Multifiber Elastic Optical Networks Reviewed

    Jingxin Wu, Suresh Subramaniam, and Hiroshi Hasegawa

    J. Opt. Commun. Netw.   Vol. 11 ( 5 ) page: 190-201   2019.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  157. Efficient Dynamic Routing and Spectrum Assignment for Multifiber Elastic Optical Networks

    Wu Jingxin, Subramaniam Suresh, Hasegawa Hiroshi

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 11 ( 5 ) page: 190 - 201   2019.5

     More details

    Language:Japanese  

    DOI: 10.1364/JOCN.11.000190

    Web of Science

  158. Digital post-processing against inline spectrum narrowing caused by optical node traversals Reviewed

    Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    IEICE ComEx   Vol. 8 ( 4 ) page: 93-98   2019.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  159. Effectiveness of Transmission-Quality-Aware Online Network Design and Provisioning Enabled through Optical Performance Monitoring Reviewed

    Keisuke Kayano, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Shoichiro Oda, Setsuo Yoshida, Takeshi Hoshida

    IEICE ComEx   Vol. 8 ( 4 ) page: 81-86   2019.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  160. Design of and resiliency enhancement in coarse/fine hybrid granular routing optical networks based on iterative path-pair-loop inflation Reviewed

    K. Itakura, Y. Mori, H. Hasegawa, and K. Sato

    15th International Conference on Design of Reliable Communication Networks (DRCN2019)     page: I-3   2019.3

     More details

    Language:English  

  161. 既設波長選択スイッチを用いた準ナイキスト波長分割多重ネットワークの実証

    白木隆太・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2019年総合大会     page: B12-3   2019.3

     More details

    Language:Japanese  

  162. クラマース・クローニッヒ受信器を用いたデータセンタ向け光スイッチネットワーク

    本田瑛士・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会フォトニックネットワーク研究会学生ワークショップ     page: pn2019-stws-5   2019.3

     More details

    Language:Japanese  

  163. [依頼講演] 距離適応変調Grouped Routing

    茅野敬介・山岡修平・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会技術研究報告   Vol. 118 ( 505 ) page: pp. 13-17   2019.3

     More details

    Language:Japanese  

  164. 超高密度波長分割多重ネットワークにおける波長選択スイッチ特性偏差の影響

    岡村和哉・山岡修平・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会フォトニックネットワーク研究会学生ワークショップ     page: pn2019-stws-4   2019.3

     More details

    Language:Japanese  

  165. Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services Reviewed

    Shuhei YAMAKAMI Masaki NIWA Yojiro MORI Hiroshi HASEGAWA Ken-ichi SATO Fumikazu INUZUKA Akira HIRANO

    IEICE Transactions on Communications   Vol. E102-B ( 3 ) page: 510-521   2019.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  166. Demonstration of Quasi-Nyquist WDM Networks Using Widely DeployedWavelength-Selective Switches Reviewed

    Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    2019 Optical Fiber Communication Conference (OFC2019)     page: M1A.7   2019.3

     More details

    Language:English  

  167. Verification of high performance and wide applicability of seamlessly expandable and limitless OXC Reviewed

    R. Hashimoto, Y. Mori, H. Hasegawa, and K. Sato

    2019 Optical Fiber Communication Conference (OFC2019)     page: --   2019.3

     More details

    Language:English  

  168. Assessment of Node-and Link-Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services

    Yamakami Shuhei, Niwa Masaki, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi, Inuzuka Fumikazu, Hirano Akira

    IEICE TRANSACTIONS ON COMMUNICATIONS   Vol. E102B ( 3 ) page: 510 - 521   2019.3

     More details

  169. Highly Dense Elastic Optical Networks Enabled by Grouped Routing with Distance-Adaptive Modulation Reviewed

    K. Kayano, S. Yamaoka, Y. Mori, H. Hasegawa and K. Sato

    IEEE Photonics Technology Letters   Vol. 31 ( 4 ) page: 295 - 298   2019.2

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/LPT.2019.2892506

    Web of Science

  170. Novel network architecture enabling quasi-Nyquist wavelength-division multiplexing Reviewed

    R. Shiraki, S. Yamaoka, Y. Mori, H. Hasegawa, and K. Sato

    SPIE Photonics West, Proceedings Volume 10946, Metro and Data Center Optical Networks and Short-Reach Links II     page: 109460C   2019.2

     More details

    Language:English  

  171. 仮想光リンクを導入した高信頼化光パスネットワーク

    板倉圭佑・森 洋二郎・長谷川 浩・佐藤健一,

    電子情報通信学会技術研究報告   Vol. 118 ( 396 ) page: pp. 263-270   2019.1

     More details

    Language:Japanese  

  172. Dynamics Characterization of Wavelength-Tunable Laser Using Coherent Detection with Dual Local Oscillator

    Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

        page: G3 13pII 02   2019.1

     More details

    Language:Japanese  

  173. Feasibility Test of Large-Scale (1,424x1,424) Optical Circuit Switches Utilizing Commercially Available Tunable Lasers

    Honda Eiji, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2019 24TH OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC) AND 2019 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING AND COMPUTING (PSC)     2019

     More details

    Language:Japanese  

    Web of Science

  174. Demonstration of Quasi-Nyquist WDM Networks Using Widely Deployed Wavelength-Selective Switches

    Shiraki Ryuta, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2019 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)     2019

     More details

    Language:Japanese  

    Web of Science

  175. Verification of High Performance and Wide Applicability of Seamlessly Expandable and Limitless OXC

    Hashimoto Ryota, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2019 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)     2019

     More details

    Language:Japanese  

    Web of Science

  176. Switching granularity and intra-node interconnection optimization for large scale optical nodes

    Hasegawa Hiroshi, Sato Ken-ichi

    2019 24TH OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC) AND 2019 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING AND COMPUTING (PSC)     2019

     More details

    Language:Japanese  

    Web of Science

  177. P-cycle Design for Translucent Elastic Optical Networks

    Zou Rujia, Subramaniam Suresh, Hasegawa Hiroshi, Jinno Masahiko

    2019 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)     2019

     More details

  178. Novel Network Architecture Enabling Quasi-Nyquist Wavelength-Division Multiplexing

    Shiraki Ryuta, Yamaoka Shuhei, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    METRO AND DATA CENTER OPTICAL NETWORKS AND SHORT-REACH LINKS II   Vol. 10946   2019

     More details

    Language:Japanese  

    DOI: 10.1117/12.2507449

    Web of Science

  179. Evaluation of WSS Characteristics in Highly Dense WDM Networks

    Okamura Kazuya, Yamaoka Shuhei, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2019 24TH OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC) AND 2019 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING AND COMPUTING (PSC)     2019

     More details

    Language:Japanese  

    Web of Science

  180. Effectiveness of transmission-quality-aware online network design and provisioning enabled through optical performance monitoring

    Kayano Keisuke, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi, Oda Shoichiro, Yoshida Setsuo, Hoshida Takeshi

    IEICE COMMUNICATIONS EXPRESS   Vol. 8 ( 4 ) page: 81 - 86   2019

     More details

    Language:Japanese  

    DOI: 10.1587/comex.2018XBL0157

    Web of Science

  181. Digital post-processing against inline spectrum narrowing caused by optical node traversals

    Yamaoka Shuhei, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    IEICE COMMUNICATIONS EXPRESS   Vol. 8 ( 4 ) page: 93 - 98   2019

     More details

    Language:Japanese  

    DOI: 10.1587/comex.2018XBL0162

    Web of Science

  182. Design of and Resiliency Enhancement in Coarse/Fine Hybrid Granular Routing Optical Networks Based on Iterative Path-Pair-Loop Inflation

    Itakura Keisuke, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2019 15TH INTERNATIONAL CONFERENCE ON THE DESIGN OF RELIABLE COMMUNICATION NETWORKS (DRCN 2019)     page: 11 - 15   2019

     More details

    Language:Japanese  

    Web of Science

  183. Node architectures in SDM networks Invited

    Hiroshi Hasegawa and Ken-ichi Sato

    Technical Report of IEICE-EXAT     page: EXAT2018-9, pp.5-11   2018.11

     More details

    Language:English  

  184. Novel Demodulation Framework Based on Quadrature Duo-Binary/Quaternary/Octernary Spectrum Shaping and MLSE for Mitigating Spectrum Narrowing Caused by Node Traversals Reviewed

    Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    ECOC2018     page: Mo4F   2018.9

     More details

    Language:English  

  185. 経路ダイバーシティ及び周波数利用効率を向上する高信頼化光パスネットワーク設計法

    板倉圭佑・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2018年ソサイエティ大会     page: B-12-4   2018.9

     More details

    Language:Japanese  

  186. 距離適応変調及びGrouped Routing による超高密度光ネットワーク

    茅野敬介・山岡修平・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2018年ソサイエティ大会     page: B-12-9   2018.9

     More details

    Language:Japanese  

  187. Quasi-Nyquist WDM Network Architecture and Its Design

    Technical Report of IEICE   Vol. 118 ( 203 ) page: PN2018-17, pp. 13-16   2018.8

     More details

    Language:Japanese  

  188. Novel FM-Noise Spectrum Measurement Based on Three-Wave Interference Reviewed

    Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    CLEO Pacific Rim     page: W4I.7   2018.8

     More details

    Language:English  

  189. Joint Banding-node Placement and Resource Allocation for Multi-granular Elastic Optical Networks Reviewed

    Jingxin Wu, Maotong Xu, Suresh Subramaniam, and Hiroshi Hasegawa

    IEEE/OSA JOCN   Vol. 10 ( 8 ) page: 27-38   2018.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  190. Joint Banding-Node Placement and Resource Allocation for Multigranular Elastic Optical Networks

    Wu Jingxin, Xu Maotong, Subramaniam Suresh, Hasegawa Hiroshi

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 10 ( 8 ) page: C27 - C38   2018.8

     More details

    Language:Japanese  

    DOI: 10.1364/JOCN.10.000C27

    Web of Science

  191. Assessment of Optical Cross-Connect Architectures for the Creation of Next Generation Optical Networks Reviewed

    Mungun-Erdene Ganbold, Takuma Yasuda, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    OECC2018     page: 6A1-5   2018.7

     More details

    Language:English  

  192. Novel Demodulation Algorithm Based on Duo-Binary Spectrum Shaping and MLSE for Mitigating Spectrum Narrowing Caused by Multiple Node Traversals Reviewed

    Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    OSA Advanced Photonics Congress 2018     page: SpW1G.5   2018.7

     More details

    Language:English  

  193. Dynamic Routing and Spectrum Assignment for Multi-fiber Elastic Optical Networks Reviewed

    Jingxin Wu, Suresh Subramaniam, and Hiroshi Hasegawa

    OSA Advanced Photonics Congress 2018     page: NeTu4F.1   2018.7

     More details

    Language:English  

  194. Design and Verification of Large-Scale Optical Circuit Switch Using ULCF AWGs for Datacenter Application Invited Reviewed

    H. Nagai, Y. Mori, H. Hasegawa, and K. Sato

    IEEE/OSA J. Opt. Commun. Netw.   Vol. 10 ( 7 ) page: B82-B89   2018.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  195. Design and Verification of Large-Scale Optical Circuit Switch Using ULCF AWGs for Datacenter Application

    Nagai H., Mori Y., Hasegawa H., Sato K.

    JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING   Vol. 10 ( 7 ) page: B82 - B89   2018.7

     More details

    Language:Japanese  

    DOI: 10.1364/JOCN.10.000B82

    Web of Science

  196. リング網における超高密度波長多重と光パス収容法

    白木隆太・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2018年総合大会     page: B-12-14   2018.3

     More details

    Language:Japanese  

  197. Grouped Routing Network Enhanced with Optical Performance Monitoring

    Keisuke Kayano, Hiroshi Saito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Shoichiro Oda, Setsuo Yoshida, and Takeshi Hoshida

    Optical Fiber Communication Conference and Exhibition 2018     page: M3J.8   2018.3

     More details

    Language:English  

  198. Fragmentation-minimized Transponder Upgrading Employing Channel Bandwidth Aligned Slot Allocation in Flexible Grid Optical Networks

    Hiroshi Hasegawa, Takuma Yasuda, Yojiro Mori, and Ken-ichi Sato

    Optical Fiber Communication Conference and Exhibition 2018     page: M3J.6   2018.3

     More details

    Authorship:Lead author   Language:English  

  199. Spectral Utilization Efficient Coarse Granular Routing Optical Networks with Resiliency against Multiple Failures Reviewed

    Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    14th International Conference on Design of Reliable Communication Networks     page: A3   2018.2

     More details

    Language:English  

  200. Large-scale optical node architecture enabling spectral-efficiency maximization in ultra-dense WDM networks Reviewed

    S.Yamaoka, R. Hashimoto, Y. Mori, H.Hasegawa, and K. Sato

    SPIE 10560, Short Reach Networks II     page: 10560-15   2018.1

     More details

    Language:English  

  201. Demonstration of 153.6Tbps Throughput from 1,536x1,536 Optical Switch with Uniform Loss and Cyclic Frequency AWGs Reviewed

    H. Nagai, Y. Mori, H.Hasegawa, and K. Sato

    SPIE 10560, Metro and Data Center Optical Networks and Short-Reach Links   Vol. 10560   page: 105600P   2018

     More details

    Language:Japanese  

    DOI: 10.1117/12.2288268

    Web of Science

  202. Architecture and Design of Quasi-Nyquist WDM Networks with Flexible Grid Granular Switching

    Shiraki Ryuta, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2018 PHOTONICS IN SWITCHING AND COMPUTING (PSC)     2018

     More details

    Language:Japanese  

    Web of Science

  203. Spectrally Efficient and Highly Resilient Grouped Routing Network Enhanced with Optical Performance Monitoring

    Kayano Keisuke, Saito Hiroshi, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi, Oda Shoichiro, Yoshida Setsuo, Hoshida Takeshi

    2018 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)     2018

     More details

    Language:Japanese  

    Web of Science

  204. A New Framework for Nation-Wide Networking in Future Datacenter-Traffic Centric Era

    Kayano Keisuke, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi, Inuzuka Fumikazu, Hirano Akira

    2018 PHOTONICS IN SWITCHING AND COMPUTING (PSC)     2018

     More details

    Language:Japanese  

    Web of Science

  205. Assessment of optical cross-connect architectures for the creation of next generation optical networks

    Ganbold Mungun-Erdene, Yasuda Takuma, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    23RD OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC2018)     2018

     More details

    Language:Japanese  

    Web of Science

  206. Spectral Utilization Efficient Coarse Granular Routing Optical Networks with Resiliency against Multiple Failures

    Ishikawa Tomohiro, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2018 21ST CONFERENCE ON INNOVATION IN CLOUDS, INTERNET AND NETWORKS AND WORKSHOPS (ICIN)     2018

     More details

    Language:Japanese  

    Web of Science

  207. Novel Demodulation Framework Based on Quadrature Duo-Binary/Quaternary/Octernary Spectrum Shaping and MLSE for Mitigating Spectrum Narrowing Caused by Node Traversals

    Yamaoka Shuhei, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    2018 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC)     2018

     More details

    Language:Japanese  

    Web of Science

  208. Large-scale optical node architecture enabling spectral-efficiency maximization in ultra-dense WDM networks

    Yamaoka Shuhei, Hashimoto Ryota, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    METRO AND DATA CENTER OPTICAL NETWORKS AND SHORT-REACH LINKS   Vol. 10560   2018

     More details

    Language:Japanese  

    DOI: 10.1117/12.2288270

    Web of Science

  209. Fragmentation-Minimized Transponder Upgrading Employing Channel Bandwidth Aligned Slot Allocation in Flexible Grid Optical Networks

    Hasegawa Hiroshi, Yasuda Takuma, Mori Yojiro, Sato Ken-ichi

    2018 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)     2018

     More details

    Language:Japanese  

    Web of Science

  210. Joint Banding-node Placement and Resource Allocation for Multi-granular Elastic Optical Networks Reviewed

    Jingxin Wu, Maotong Xu, Suresh Subramaniam, and Hiroshi Hasegawa

    IEEE Globecom 2017     2017.12

     More details

    Language:English  

    DOI: 10.1109/GLOCOM.2017.8254764

  211. Fast Optical Circuit Switch for Intra-Datacenter Networking Invited Reviewed

    Koh UEDA, Yojiro MORI, Hiroshi HASEGAWA, Hiroyuki MATSUURA, Kiyo ISHII, Haruhiko KUWATSUKA, Shu NAMIKI, Toshio WATANABE, Ken-ichi SATO

    IEICE Transactions on Communications   Vol. E100.B ( 10 ) page: 1740-1746   2017.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  212. Spectral Efficiency Maximization of Grouped Routing Optical Networks with Shared Protection Reviewed

    Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    IEEE/OSA J. Opt. Commun. Netw.   Vol. 9 ( 10 ) page: 864-875   2017.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  213. First Demonstration of Subsystem-Modular Optical Cross-Connect Using Single-Module 6x6 WSS Reviewed

    R. Hashimoto, S. Yamaoka, Y. Mori, H. Hasegawa, K. Sato, K. Yamaguchi, K. Seno, K. Suzuki

    ECOC2017     page: Tu.2.F.2   2017.9

     More details

    Language:English  

  214. Joint Pre-, Inline-, and Post-Compensation of Spectrum Narrowing Caused by Traversing Multiple Optical Nodes Reviewed

    Y. Mori, H. Hasegawa, K. Sato

    ECOC2017     page: P1.SC3.45   2017.9

     More details

    Language:English  

  215. Implication of optical path cross-connect and fiber cross-connect in creating cost-effective large bandwidth optical networks

    Mungun-Erdene Ganbold, Takuma Yasuda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    IEICE Society Conference 2017     page: BS-7-25   2017.9

     More details

    Language:English  

  216. 高信頼化Grouped Routingネットワーク

    長谷川浩・森洋二郎・佐藤健一

    信学技報   Vol. 117 ( 186 ) page: 13-18   2017.8

     More details

    Authorship:Lead author   Language:Japanese  

  217. 超高密度波長分割多重ネットワークにおける大規模光ノードの評価

    山岡修平・橋本涼太・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 117 ( 186 ) page: 47-50   2017.8

     More details

    Language:Japanese  

  218. ネットワークコスト評価に基づく大規模光クロスコネクトノードアーキテクチャの性能比較

    Ganbold Mungun-Erdene・安田拓真・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 117 ( 186 ) page: 19-22   2017.8

     More details

    Language:Japanese  

  219. Highly reliable and large-scale subsystem-modular optical cross-connect Reviewed

    Shuhei Yamakami, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    OSA Optics Express   Vol. 25   page: 17982-17994   2017.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  220. Novel Subcarrier Multiplexing and Subcarrier-synchronous Phase Estimation Tolerant to Laser Phase Noise Reviewed

    David Martinez, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    Signal Processing in Photonics Communications 2017     page: SpW1F.5   2017.7

     More details

    Language:English  

  221. Compact OXC architecture, design and prototype development for flexible waveband routing optical networks Reviewed

    Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato, and Osamu Moriwaki

    OSA Optics Express   Vol. 25 ( 115 ) page: 15838-15853   2017.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  222. Theory and Progress of Large-scale Optical Switching and Elastically Hybrid Optical Switching Invited Reviewed

    H. Hasegawa and K. Sato

    Photonics in Switching 2017     page: PM2D.1   2017.7

     More details

    Authorship:Lead author   Language:English  

  223. Large-scale optical circuit switch architecture for intra-datacentre networking Reviewed

    Yojiro Mori, Koh Ueda, Hiroshi Hasegawa, and Ken-ichi Sato

    2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)     2017.6

     More details

    Language:English  

    DOI: 10.1109/CLEOE-EQEC.2017.8086948

  224. Routing, Fiber, Band, and Spectrum Assignment (RFBSA) for Multi-granular Elastic Optical Networks Reviewed

    Jingxin Wu, Maotong Xu, Suresh Subramaniam, and Hiroshi Hasegawa

    IEEE ICC 2017     page: ONS-05: Elastic Optical Networks   2017.5

     More details

    Language:English  

  225. Large-Scale Optical Node Utilizing MxM WSSs Optimally Configured for Traffic Distribution Reviewed

    M. Niwa; Y. Mori; H. Hasegawa; K. Sato

    IEEE Photonics Technology Letters   Vol. PP ( 99 ) page: 1-1   2017.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/LPT.2017.2707474

  226. Dynamic Path Provisioning and Disruption-Free Reoptimization Algorithms for Bandwidth on-Demand Services Considering Fairness Reviewed

    Masahiro NAKAGAWA, Hiroshi HASEGAWA, Ken-ichi SATO

    IEICE Transactions on Communications   Vol. E100.B (2017) ( 4 ) page: 536-547   2017.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  227. 多重故障を考慮した高信頼化Grouped Routingネットワーク設計法

    石川智啓・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2017年総合大会     page: B-12-15   2017.3

     More details

    Language:Japanese  

  228. Optical tunable filter for gridless ROADM Reviewed

    M. Niwa, Y. Mori, H. Hasegawa and K. Sato

    2017 Optical Fiber Communications Conference and Exhibition (OFC)     page: 1-3   2017.3

     More details

    Language:English  

  229. Novel intra- and inter-datacenter converged network exploiting space- and wavelength-dimensional switches Reviewed

    K. Ueda, Y. Mori, H. Hasegawa and K. Sato

    2017 Optical Fiber Communications Conference and Exhibition (OFC)     page: 1-3   2017.3

     More details

    Language:English  

  230. Dynamic control of coarse/fine hybrid granular routing optical networks Reviewed

    Y. Ito, Y. Mori, H. Hasegawa and K. Sato

    2017 Optical Fiber Communications Conference and Exhibition (OFC)     page: 1-3   2017.3

     More details

    Language:English  

  231. Highly reliable large-scale optical cross-connect architecture utilizing M×M wavelength-selective switches Reviewed

    S. Yamakami, M. Niwa, Y. Mori, H. Hasegawa and K. Sato

    2017 Optical Fiber Communications Conference and Exhibition (OFC)     page: 1-3   2017.3

     More details

    Language:English  

  232. Impairment mitigation in noncoherent optical transmission enabled with machine learning for intra-datacenter networks Reviewed

    Keisuke Ito, Masaki Niwa, Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    SPIE Photonics West 2017     page: 10131-9   2017.2

     More details

    Language:English  

  233. Efficient network expansion strategy for elastic optical networks that considers channel capacity upgrades Reviewed

    Takuma Yasuda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    SPIE Photonics West 2017     page: 10129-8   2017.2

     More details

    Language:English  

  234. Large-Scale Optical Switch Utilizing Multistage Cyclic Arrayed-Waveguide Gratings for Intra-Datacenter Interconnection Reviewed

    K. Ueda, Y. Mori, H. Hasegawa and K. Sato

    IEEE Photonics Journal   Vol. 9 ( 1 ) page: 1-12   2017.2

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/JPHOT.2016.2635384

  235. Algorithm for raising OXC port count to meet traffic growth at minimum cost Invited Reviewed

    K. Sato, Y. Mori, H. Hasegawa and K. Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 9 ( 2 ) page: A263-A270   2017.2

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.9.00A263

  236. Tipping point for the future scalable OXC: what size MxM WSS is needed? Invited Reviewed

    M. Niwa, Y. Mori, H. Hasegawa and K. Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 9 ( 1 ) page: A18-A25   2017.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.9.000A18

  237. First Demonstration of Subsystem-Modular Optical Cross-Connect Using Single-Module 6x6 WSS

    Hashimoto Ryota, Yamaoka Shuhei, Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi, Yamaguchi Keita, Seno Kazunori, Suzuki Kenya

    43RD EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC 2017)     2017

     More details

    Language:Japanese  

    Web of Science

  238. Routing, Fiber, Band, and Spectrum Assignment (RFBSA) for Multi-granular Elastic Optical Networks

    Wu Jingxin, Xu Maotong, Subramaniam Suresh, Hasegawa Hiroshi

    2017 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)     2017

     More details

    Language:Japanese  

    Web of Science

  239. Large-Scale Optical Circuit Switch Architecture for Intra-Datacentre Networking

    Mori Yojiro, Ueda Koh, Hasegawa Hiroshi, Sato Ken-ichi

    2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)     2017

     More details

    Language:Japanese  

    Web of Science

  240. Joint Pre-, Inline-, and Post-Compensation of Spectrum Narrowing Caused by Traversing Multiple Optical Nodes

    Mori Yojiro, Hasegawa Hiroshi, Sato Ken-ichi

    43RD EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC 2017)     2017

     More details

    Language:Japanese  

    Web of Science

  241. Joint Banding-node Placement and Resource Allocation for Multi-granular Elastic Optical Networks

    Wu Jingxin, Xu Maotong, Subramaniam Suresh, Hasegawa Hiroshi

    GLOBECOM 2017 - 2017 IEEE GLOBAL COMMUNICATIONS CONFERENCE     2017

     More details

    Language:Japanese  

    Web of Science

  242. 粗粒度ルーティング光ネットワークの設備増設設計とその性能評価

    齋藤裕・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 116 ( 307 ) page: 13-18   2016.11

     More details

    Language:Japanese  

  243. Dynamic Router Performance Control Utilizing Support Vector Machines for Energy Consumption Reduction Reviewed

    H. Kawase, Y. Mori, H. Hasegawa, and K. Sato

    IEEE Transactions on Network and Service Management     page: TNSM-2015-00912   2016.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/TNSM.2016.2605640

  244. Large-Scale and Simple-Configuration Optical Switch Enabled by Asymmetric-Port-Count Subswitches Reviewed

    Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    2016 IEEE Photonics Conference, 29th Annual Conference of the IEEE Photonics Society     page: ThG1.2   2016.10

     More details

    Language:English  

  245. Demonstration of Virtual Direct Link Optical Networks Reviewed

    Y. Ito, M. Niwa, K. Ueda, Y. Mori, H. Hasegawa, and K. Sato

    2016 IEEE Photonics Conference, 29th Annual Conference of the IEEE Photonics Society     page: WD1.5   2016.10

     More details

    Language:English  

  246. Demonstration of VirNovel Optical-Node Architecture Utilizing Asymmetric-Multiport Wavelength-Selective Switchestual Direct Link Optical Networks Reviewed

    M. Niwa, Y. Mori, H. Hasegawa, and K. Sato

    2016 IEEE Photonics Conference, 29th Annual Conference of the IEEE Photonics Society     page: WD2.3   2016.10

     More details

    Language:English  

  247. Highly Reliable and Cost-Effective Large-Scale Optical Cross-Connect Architecture Reviewed

    S. Yamakami, M. Niwa, Y. Mori, H. Hasegawa, and K. Sato

    2016 IEEE Photonics Conference, 29th Annual Conference of the IEEE Photonics Society     page: WD2.4   2016.10

     More details

    Language:English  

  248. Experimental Demonstration of 2,160x2,160 Optical Circuit Switch for Intra-datacenter Networking Reviewed

    Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Hiroyuki Matsuura, Kiyo Ishii, Haruhiko Kuwatsuka, and Shu Namiki

    2016 IEEE Photonics Conference, 29th Annual Conference of the IEEE Photonics Society     page: MB4.2   2016.10

     More details

    Language:English  

  249. Node Architecture and Design of Flexible Waveband Routing Optical Networks Reviewed

    H. Hasegawa, S. Subramaniam, and K. Sato

    IEEE/OSA JOCN   Vol. 8 ( 10 ) page: 734-744   2016.10

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  250. データセンタ用大規模光スイッチの設計

    永井宏樹・上田恒・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2016年ソサイエティ大会     page: B-12-10   2016.9

     More details

    Language:Japanese  

  251. 定期的な設備増設状況下におけるグループ化光パスルーティングネットワークの性能評価

    齋藤裕・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2016年ソサイエティ大会     page: B-12-13   2016.9

     More details

    Language:Japanese  

  252. 周期的な設備増設を考慮したセミフレキシブルグリッド光ネットワークの性能評価

    安田拓真・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2016年ソサイエティ大会     page: B-12-12   2016.9

     More details

    Language:Japanese  

  253. Performance comparison of grouped optical path routing networks that adopt different granular shared protection schemes

    Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, and Ken-ichi Sato

    IEICE Society Conference 2016     page: BS-5-2   2016.9

     More details

    Language:English  

  254. Evaluation and Performance Modeling of Two OXC Architectures Invited Reviewed

    J. Wu, M. Xu, S. Subramaniam and H. Hasegawa

    2016 IEEE 37th Sarnoff Symposium     page: T3-2   2016.9

     More details

    Language:English  

  255. MxM WSS Based ROADM Architecture with Topology-Insensitive Routing Performance Reviewed

    M. Niwa, Y. Mori, H. Hasegawa, and K. Sato

    ECOC2016     page: W.4.P1.SC4.7   2016.9

     More details

    Language:English  

  256. 距離及びホップ数に適応的なサブキャリア変調を用いた周波数利用効率最大化

    磯野祐馬・丹羽真規・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 116 ( 205 ) page: 53-57   2016.9

     More details

    Language:Japanese  

  257. Spectral-Efficiency Maximization with Subcarrier-Multiplexed Hybrid-QAM Signals Adaptive to Distance and Hop Count Reviewed

    Yuma Isono, Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    ECOC2016     page: Th.1.E.3   2016.9

     More details

    Language:English  

  258. Optical Networking Utilizing Virtual Direct Links Reviewed

    Y. Ito, Y. Mori, H. Hasegawa, and K. Sato

    ECOC2016     page: W.4.P1.SC6.3   2016.9

     More details

    Language:English  

  259. Recent Progress in Large-scale Optical Switches for Intra-datacenter Interconnection Invited Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, and K. Sato

    PIERS2016     page: 2P4   2016.8

     More details

    Language:English  

  260. Demonstration of 1,440x1,440 Fast Optical Circuit Switch for Datacenter Networking Reviewed

    Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Hiroyuki Matsuura, Kiyo Ishii, Haruhiko Kuwatsuka, Shu Namiki, Toshio Watanabe, Ken-ichi Sato

    21st OptoElectronics and Communications Conference (OECC2016)/Photonics in Switching 2016 (PS2016)     page: WF1-3   2016.7

     More details

    Language:English  

  261. Spectral Efficient Grouped Routing Network that Applies Dynamic Optical Path Grooming Reviewed

    Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    21st OptoElectronics and Communications Conference (OECC2016)/Photonics in Switching 2016 (PS2016)     page: TuA1-1   2016.7

     More details

    Language:English  

  262. Hardware Scale Analysis and Prototype Development of Flexible Waveband Routing OXCs Reviewed

    Tomohiro Ishikawa, Masaki Niwa, Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato, Osamu Moriwaki

    21st OptoElectronics and Communications Conference (OECC2016)/Photonics in Switching 2016 (PS2016)     page: TuA1-4   2016.7

     More details

    Language:English  

  263. Survivable Grouped Routing Optical Networks With Dedicated Path Protection Reviewed

    H. Hasegawa, Y. Mori, and K. Sato

    IEICE Transactions on Communications   Vol. E99-B ( 7 ) page: -   2016.7

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  264. Disruption-Free Expansion of Protected Optical Path Networks that Utilize Subsystem Modular OXC Nodes Reviewed

    Kosuke Sato, Hiroshi Hasegawa, and Ken-ichi Sato

    IEEE/OSA J. Opt. Commun. Netw.   Vol. 8 ( 7 ) page: 476-485   2016.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/JOCN.8.000476

  265. A Compact OXC Node Architecture That Exploits Dynamic Path Bundling and Routing Reviewed

    T. Ishikawa, H. Hasegawa, S. Subramaniam, and K. Sato

    ONDM2016     page: S8-3   2016.5

     More details

    Language:English  

  266. Large-Scale and Simple-Configuration Optical Switch Enabled by Asymmetric-Port-Count Subswitches Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. i. Sato and T. Watanabe

    IEEE Photonics Journal,   Vol. 8 ( 2 ) page: 1-10   2016.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/JPHOT.2016.2529842

  267. Novel Optical-Node Architecture Utilizing Asymmetric-Multiport Wavelength-Selective Switches Reviewed

    M. Niwa, Y. Mori, H. Hasegawa and K. Sato

    IEEE Photonics Journal,   Vol. 8 ( 2 ) page: 1-10   2016.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/JPHOT.2016.2547838

  268. Highly spectral efficient networks based on grouped optical path routing Reviewed

    Y. Terada, Y. Mori, H. Hasegawa, and K. Sato

    OSA Optics Express   Vol. 24 ( 6 ) page: 6213-6228   2016.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/OE.24.006213

  269. MxM WSSを用いた大規模光ノード構成法

    丹羽真規・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2016年総合大会     page: B-10-77   2016.3

     More details

    Language:Japanese  

  270. サブシステムモジュラ光クロスコネクトにおけるルーティング性能のノード次数依存

    伊藤圭佑・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2016年総合大会     page: B-10-23   2016.3

     More details

    Language:Japanese  

  271. 高信頼サブシステムモジュラ光クロスコネクト

    山上修平・丹羽真規・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2016年総合大会     page: B-10-22   2016.3

     More details

    Language:Japanese  

  272. 機械学習制御に基づくルータの低消費電力化 (受賞に伴う奨励講演)

    川瀬弘嗣・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 115 ( 497 ) page: 47-51   2016.3

     More details

    Language:Japanese  

  273. 高信頼光クロスコネクト構成

    山上修平・丹羽真規・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 115 ( 497 ) page: 17-20   2016.3

     More details

    Language:Japanese  

  274. Algorithm for raising OXC port count to meet traffic growth at minimum-cost Reviewed

    K. Sato, Y. Mori, H. Hasegawa, and K. Sato

    OSA Optical Fiber Communication Conference (OFC2016)     page: W4B.2   2016.3

     More details

    Language:English  

    DOI: 10.1364/OFC.2016.W4B.2

  275. Low-Loss and Large-Scale Optical Switch Utilizing Asymmetric-Port-Count Cyclic AWGs Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, and K. Sato

    ICP2016     page: Dev-8   2016.3

     More details

    Language:English  

  276. Cycle-Slip-Tolerant Decision-Boundary Creation with Machine Learning Reviewed

    H. Kawase, Y. Mori, H. Hasegawa, and K. Sato

    ICP2016     page: Com-4   2016.3

     More details

    Language:English  

  277. Spectrum Utilization Maximization in Coarse Granular Optical Routing Networks that Employ Fine Granular Shared Protection Reviewed

    T. Ishikawa, Y. Mori, H. Hasegawa, K. Sato

    Design of Reliable Communication Networks 2016 (DRCN2016)     page: D-1   2016.3

     More details

    Language:English  

  278. Tipping point for the future scalable OXC -What size MxM WSS is needed?-, Reviewed

    M. Niwa, Y. Mori, H. Hasegawa, K. Sato

    OSA Optical Fiber Communication Conference (OFC2016)     page: W4B.5   2016.3

     More details

    Language:English  

    DOI: 10.1364/OFC.2016.W4B.5

  279. Highly Spectral Efficient Elastic Optical Network Employing Grouped Optical Path Routing Reviewed

    Y. Terada, Y. Mori, H. Hasegawa, and K. Sato

    OSA Optical Fiber Communication Conference (OFC2016)     page: W2A.48   2016.3

     More details

    Language:English  

    DOI: 10.1364/OFC.2016.W2A.48

  280. Large-scale and simple-configuration optical switch enabled by asymmetric-port-count sub-switches Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. Sato, and T. Watanabe

    IEEE Photonics Journal   ( 99 ) page: 1   2016.2

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/JPHOT.2016.2529842

  281. Demonstration of 720x720 optical fast circuit switch for intra-datacenter networks Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. Ishii, H. Kuwatsuka, S. Namiki, H. Matsuura, and K. Sato

    SPIE Photonics West 2016   Vol. Proc. SPIE 9775, Next-Generation Optical Networks for Data Centers and Short-Reach Links III   page: 977518   2016.2

     More details

    Language:English  

  282. Architecture and design of optical path networks utilizing waveband virtual links Reviewed

    Y. Ito, Y. Mori, H. Hasegawa, and K. Sato

    SPIE Photonics West 2016   Vol. Proc. SPIE 9773, Optical Metro Networks and Short-Haul Systems VII   page: 977319   2016.2

     More details

    Language:English  

  283. Real-time optical path control method that utilizes multiple support vector machines for traffic prediction Reviewed

    H. Kawase, Y. Mori, H. Hasegawa, and K. Sato

    SPIE Photonics West 2016   Vol. Proc. SPIE 9773, Optical Metro Networks and Short-Haul Systems VII   page: 977318   2016.2

     More details

    Language:English  

  284. 高信頼化粗粒度ルーティング光ネットワーク

    長谷川浩・森洋二郎・佐藤健一

    信学技報   Vol. 115 ( 430 ) page: 181-187   2016.1

     More details

    Authorship:Lead author   Language:Japanese  

  285. リンク容量増大とノード拡張性を同時達成する光ネットワークアーキテクチャ

    寺田佑貴・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 115 ( 407 ) page: 7-12   2016.1

     More details

    Language:Japanese  

  286. Large-Scale Optical-Switch Prototypes Utilizing Cyclic Arrayed-Waveguide Gratings for Datacenters Invited Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. Sato and T. Watanabe

    IEEE Journal of Lightwave Technology   Vol. 34 ( 2 ) page: 608-617   2016.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/JLT.2015.2489221

  287. Optimal nonuniform wavebanding in WDM mesh networks Reviewed

    Jingxin Wu, Suresh Subramaniam , Hiroshi Hasegawa

    Springer Photonic Network Communications     page: 1-10   2015.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11107-015-0583-2

  288. Differential Reliability Path Accommodation Design and Reconfiguration in Virtualized Multi-Layer Transport Network Reviewed

    Akihiro Kadohata, Takafumi Tanaka, Atsushi Watanabe, Akira Hirano, Hiroshi Hasegawa, and Ken-ichi Sato

    IEICE Transactions on Communications   Vol. E98-B ( 11 ) page: 2151-2159   2015.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  289. Criteria for Selecting Subsystem Configuration in Creating Large-Scale OXCs Reviewed

    Yasuhiro Tanaka, Hiroshi Hasegawa, and Ken-ichi Sato

    IEEE/OSA J. Opt. Commun. Netw.   Vol. 7 ( 10 ) page: 1009-1017   2015.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  290. Shared protected grouped optical path routing network design employing iterative path group relocation Reviewed

    T. Isikawa, Y. Mori, H. Hasegawa, and K. Sato

    2015 7th International Workshop on Reliable Networks Design and Modeling (RNDM2015)     page: 78 - 84   2015.10

     More details

    Language:English  

    DOI: 10.1109/RNDM.2015.7324312

  291. Pre-Adjustment Rerouting for Wavelength Defragmentation in Optical Transparent WDM Networks

    Akihiro Kadohata, Atsushi Watanabe, Akira Hirano, Hiroshi Hasegawa, and Ken-ichi Sato

    IEICE Transactions on Communications   Vol. E98-B ( 10 ) page: 2014-2021   2015.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  292. Large-Scale Optical-Switch Prototypes Utilizing Cyclic Arrayed-Waveguide Gratings for Datacenters Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. Sato, and T. Watanabe

    IEEE Journal of Lightwave Technology   ( 99 ) page: 1   2015.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/JLT.2015.2489221

  293. Novel network control scheme that can substantially reduce link and node costs simultaneously Reviewed

    Y. Terada, Y. Mori, H. Hasegawa, and K. Sato

    2015 European Conference on Optical Communication (ECOC2015)     page: 1-3   2015.9

     More details

    Language:English  

    DOI: 10.1109/ECOC.2015.7342022

  294. Large-scale optical switch with simplified sub-switch connections for datacenter application Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. Sato, and T. Watanabe

    2015 International Conference on Photonics in Switching (PS2015)     page: 351-353   2015.9

     More details

    Language:English  

    DOI: 10.1109/PS.2015.7329050

  295. Cost Effective and Resilient Optical Network that Offers Seamless Network Expansion via Subsystem Modular OXCs and Inter-node Interconnection Optimization Reviewed

    K. Sato, Y. Mori, H. Hasegawa, K. Sato

    2015 International Conference on Photonics in Switching (PS2015)     page: WeIII3-3   2015.9

     More details

    Language:English  

  296. Highly scalable and compact ROADM architecture that exploits MxN wavelength-selective switches Reviewed

    M. Niwa, Y. Mori, H. Hasegawa, and K. Sato

    2015 International Conference on Photonics in Switching (PS2015)     page: 127 - 129   2015.9

     More details

    Language:English  

    DOI: 10.1109/PS.2015.7328975

  297. Evaluation of frequency utilization enhancement with transmission-characteristics-aware grouped optical path routing Reviewed

    Y. Terada, Y. Mori, H. Hasegawa, K. Sato, and T. Tanaka

    2015 International Conference on Photonics in Switching (PS2015)     page: 256 - 258   2015.9

     More details

    Language:English  

    DOI: 10.1109/PS.2015.7329018

  298. Impairment-aware optical multicast tree design with modulation format optimization Reviewed

    S. Deb, H. Hasegawa, Y. Mori, and K. Sato

    2015 International Conference on Photonics in Switching (PS2015)     page: 250 - 252   2015.9

     More details

    Language:English  

    DOI: 10.1109/PS.2015.7329016

  299. Comparison of OXC Node Architectures for WDM and Flex-Grid Optical Networks Invited Reviewed

    J. Wu, S. Suburamaniam, and H. Hasegawa

    24th International Conference on Computer Communication and Networks (ICCCN2015)     page: 1-8   2015.8

     More details

    Language:English  

    DOI: 10.1109/ICCCN.2015.7288388

  300. Grouped Routing仮想光リンクを導入した大規模光パスネットワークの動的コントロール

    伊東優作・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 115 ( 204 ) page: 49-53   2015.8

     More details

    Language:Japanese  

  301. 機械学習制御に基づくルータの低消費電力化

    川瀬弘嗣・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 115 ( 204 ) page: 31-35   2015.8

     More details

    Language:Japanese  

  302. Wavelength Path Signalling for WSS/WBSS Combined Optical Switches in Hierarchical Optical Networks Reviewed

    T. Miyazawa, T. Hirayama, H. Harai, K. Ueda, Y. Mori, H. Hasegawa, K. Sato

    ICTON2015     page: -   2015.7

     More details

    Language:English  

  303. Path Accommodation Design and Reconfiguration for Different Reliability Classes in Virtualized Multi-layer Transport Network Reviewed

    A. Kadohata, T. Tanaka, A. Watanabe, A. Hirano, H. Hasegawa, and K. Sato

    OECC2015     page: JTuB.24   2015.6

     More details

    Language:English  

  304. Experimental Demonstration of Multi-Granular Optical-Path Network Utilizing Wavelength/Waveband-Selective Switches Reviewed

    K. Ueda, M. Niwa, Y. Mori, H. Hasegawa, K. Sato, T. Miyazawa and H. Harai

    OECC2015     page: JThB.15   2015.6

     More details

    Language:English  

  305. OFC2015報告:光ネットワーク関連 Invited

    長谷川 浩・森 洋二郎・佐藤 健一

    信学技報   ( OCS2015-3/OPE2015-3 ) page: 9-12   2015.6

     More details

    Authorship:Lead author   Language:Japanese  

  306. Experimental verification of highly scalable OXC that consists of subsystem-modular express-switch part and multicast-switch-based add/drop part enabling total throughput of 314 Tbps Reviewed

    Shoichi Takashina, Hiroto Ishida, Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, and Toshio Watanabe

    OSA Optics Express   Vol. 23 ( 11 ) page: 14796-14805   2015.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1364/OE.23.014796

  307. Experimental verification of highly scalable OXC that consists of subsystem-modular express-switch part and multicast-switch-based add/drop part enabling total throughput of 314 Tbps Reviewed

    Shoichi Takashina, Hiroto Ishida, Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, and Toshio Watanabe

    OSA Optics Express   Vol. 23 ( 11 ) page: 14796-14805   2015.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  308. Hardware Scale and Performance Evaluation of Compact Sub-system Modular OXC that Adopts Tailored Add/Drop Architecture Reviewed

    Hiroto Ishida, Hiroshi Hasegawa, and Ken-ichi Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 7 ( 6 ) page: 586-595   2015.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  309. Flexible Waveband Routing Optical Networks Reviewed

    H. Hasegawa, S. Subramaniam, and K. Sato

    ICC2015     page: ONS   2015.6

     More details

    Authorship:Lead author   Language:English  

  310. Experimental Demonstration of Multi-Granular Optical-Path Network Utilizing Wavelength/Waveband-Selective Switches Reviewed

    K. Ueda, M. Niwa, Y. Mori, H. Hasegawa, K. Sato, T. Miyazawa and H. Harai

    OECC2015     page: JThB.15   2015.6

     More details

    Language:English  

  311. Path Accommodation Design and Reconfiguration for Different Reliability Classes in Virtualized Multi-layer Transport Network Reviewed

    A. Kadohata, T. Tanaka, A. Watanabe, A. Hirano, H. Hasegawa, and K. Sato

    OECC2015     page: JTuB.24   2015.6

     More details

    Language:English  

  312. Resilient Grouped Routing Optical Networks With Finely Granular Protection Reviewed

    H. Hasegawa, Y. Mori, and K. Sato

    ONDM2015     page: S7.3   2015.5

     More details

    Authorship:Lead author   Language:English  

  313. Optimal Nonuniform Wavebanding in WDM Mesh Networks Reviewed

    J. Wu, S. Suburamaniam, and H. Hasegawa

    ONDM2015     page: S5.3   2015.5

     More details

    Language:English  

  314. Integrity Enhancement of Flexible/Semi-flexible Grid Networks that Minimizes Disruption in Spectrum Defragmentation and Bitrate-Dependent Blocking Reviewed

    Z. Shen, H. Hasegawa, and K. Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 7 ( 4 ) page: 235-247   2015.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  315. データセンタ内ネットワークに適した大規模光スイッチ構成

    上田恒・森洋二郎・長谷川浩・佐藤健一・渡辺俊夫

    第11回PN研究会学生ワークショップ     page: 7-10   2015.3

     More details

    Language:Japanese  

  316. 2段階ルーティング光クロスコネクトノードの性能評価

    岡孝一郎・長谷川浩・佐藤健一

    電子情報通信学会2015年総合大会     page: B-12-5   2015.3

     More details

    Language:Japanese  

  317. 将来のシステム更新に適応するエラスティック光パスネットワーク動的制御法

    草野太希・沈志舒・長谷川浩・佐藤健一

    電子情報通信学会2015年総合大会     page: B-12-22   2015.3

     More details

    Language:Japanese  

  318. 繰り返し再配置に基づく高信頼粗粒度ルーティング光パスネットワーク設計法

    石川智啓・森洋二郎・長谷川浩・佐藤健一

    電子情報通信学会2015年総合大会     page: B-12-14   2015.3

     More details

    Language:Japanese  

  319. Performance analysis of large-scale OXC that enables dynamic modular growth Reviewed

    Yasuhiro Tanaka, Hiroshi Hasegawa, and Ken-ichi Sato

    OSA Optics Express   Vol. 23 ( 5 ) page: 5994-6006   2015.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  320. A Novel Routing and Frequency Slot Assignment Scheme that Can Adapt to Transmission Speed Migration Reviewed

    Z. Shen, T. Kusano, H. Hasegawa, and K. Sato

    OFC2015     page: W1I.2   2015.3

     More details

    Language:English  

  321. Grouped Routingに基づく高周波数利用効率ネットワーク

    寺田佑貴・森洋二郎・長谷川浩・佐藤健一

    信学技報   ( PN2014-90 ) page: 75-80   2015.3

     More details

    Language:Japanese  

  322. 階層化光ネットワークにおけるWSS/WBSS混合光スイッチのための波長パスシグナリング実験

    宮澤高也・平山孝弘・原井洋明・上田恒・森洋二郎・長谷川浩・佐藤健一

    信学技報   ( PN2014-98 ) page: 121-126   2015.3

     More details

    Language:Japanese  

  323. Large Scale Optical Cross-connect: architecture, performance analysis, and feasibility demonstration Invited Reviewed

    H. Hasegawa and K. Sato

    OFC2015     page: W3J.1   2015.3

     More details

    Authorship:Lead author   Language:English  

  324. Residual Capacity Aware Dynamic Control of GRE-based Routing Optical Path Networks under Traffic Growth Model Reviewed

    Y. Terada, Y. Mori, H. Hasegawa, and K. Sato

    OFC2015     page: Th1I.6   2015.3

     More details

    Language:English  

  325. Large-Scale Optical-switch Prototype Compactly Implemented with Novel Functional Configuration Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. Sato, and T. Watanabe

    OFC2015     page: W3D.1   2015.3

     More details

    Language:English  

  326. Highly Scalable Subsystem Modular OXC Nodes that Host Tailored Add/drop Mechanism Reviewed

    H. Ishida, H. Hasegawa and K. Sato

    OFC2015     page: Th2A.47   2015.3

     More details

    Language:English  

  327. Demonstration of Large-Port-Count and Compact ROADM that Exhibits Virtual-C/D/C Performance Reviewed

    S. Takashina, H. Ishida, Y. Mori, H. Hasegawa, and K. Sato

    OFC2015     page: W3J.6   2015.3

     More details

    Language:English  

  328. Wavelength-Tunable Filters Utilizing Arrayed Waveguide Gratings for Colorless/Directionless/Contentionless Optical Signal Drop in ROADMs Reviewed

    S. Takashina, Y. Mori, H. Hasegawa, K. Sato, T. Watanabe

    IEEE Photonics Journal   Vol. 7 ( 1 ) page: article no. 7100511   2015.2

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  329. A novel optical path routing network that combines coarse granularity optical multicast with fine granularity add/drop and block Reviewed

    M. M. Soares, Y. Mori, H. Hasegawa and K. Sato

    Proc. SPIE 9388, Optical Metro Networks and Short-Haul Systems VII, 93880O (February 7, 2015);     2015.2

     More details

    Language:English  

    DOI: doi:10.1117/12.2078561

  330. Router power reduction by active performance control realized with support vector machines Reviewed

    H. Kawase, H. Hasegawa, and K. Sato

    ICNC2015     page: 530-535   2015.2

     More details

    Language:English  

  331. Wavelength-tunable filter utilizing non-cyclic arrayed waveguide grating to create colorless, directionless, contentionless ROADMs Reviewed

    M. Niwa, S. Takashina, Y. Mori, H. Hasegawa, K. Sato, and T. Watanabe

    Proc. SPIE 9388, Optical Metro Networks and Short-Haul Systems VII, 938807 (February 7, 2015)     2015.2

     More details

    Language:English  

    DOI: doi:10.1117/12.2078522

  332. スケーラブルな大規模光クロスコネクト構成技術 Invited

    長谷川浩・佐藤健一

    第35回レーザー学会年次大会     page: G.11aVI.3   2015.1

     More details

    Authorship:Lead author   Language:Japanese  

  333. スケーラブルな大規模低損失かつ低消費電力なアレイ導波路回折格子型波長可変フィルタ光クロスコネクト構成技術

    丹羽真規・高科翔一・森洋二郎・長谷川浩・佐藤健一

    第35回レーザー学会年次大会     page: G.11pVI.3   2015.1

     More details

    Language:Japanese  

  334. 共有型プロテクションを導入した粗粒度ルーティング光パスネットワーク

    石川智啓・森洋二郎・長谷川浩・佐藤健一

    第一回Japan Photonic Network デザインコンテスト     page: 25-28   2014.11

     More details

    Language:Japanese  

  335. 信号帯域幅毎の設定目標周波数を導入した光パス経路・周波数スロット割当法

    草野太希・沈志舒・長谷川浩・佐藤健一

    電子情報通信学会2014年ソサイエティ大会     page: B-12-11   2014.9

     More details

    Language:Japanese  

  336. Impact of Branching in Grouped Routing Optical Networks in a Dynamic Scenario

    Mauro Soares, Hiroshi Hasegawa, Ken-ichi Sato

    IEICE 2014 Society Conference     page: B-12-13   2014.9

     More details

    Language:Japanese  

  337. 準フレキシブルグリッドネットワークにおけるパス再配置の効果

    沈志舒・長谷川浩・佐藤健一

    電子情報通信学会2014年ソサイエティ大会     page: B-12-12   2014.9

     More details

    Language:Japanese  

  338. Verification of High Frequency Spectrum Utilization in Grouped Optical Path Routing Networks under Traffic Growth Scenario Reviewed

    Y. Terada, Y. Mori, H. Hasegawa, and K. Sato

    European Conference on Optical Communications (ECOC2014)     page: We.3.5.1   2014.9

     More details

    Language:English  

  339. 周回性アレイ導波路回折格子を用いた光スイッチの最適設計

    上田恒・森洋二郎・長谷川浩・佐藤健一

    信学技報   ( PN2014-19 ) page: 49-54   2014.9

     More details

    Language:Japanese  

  340. Novel Large-port-count Optical-switch Architecture for Optical Interconnection in Datacenter Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, K. Sato and T. Watanabe

    European Conference on Optical Communications (ECOC2014)     page: We.3.5.1   2014.9

     More details

    Language:English  

  341. Low-loss and Low-power-consumption Wavelength TunableFilter Enabling Colorless/Directionless/Contentionless Optical Drop in ROADMs Reviewed

    S. Takashina, Y. Mori, H. Hasegawa, K. Sato and T. Watanabe

    European Conference on Optical Communications (ECOC2014)     page: We.3.5.2   2014.9

     More details

    Language:English  

  342. Blocking Performance of Multi-Stage Routing Optical Path Networks Reviewed

    Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato

    OECC/ACOFT2014     page: TU6A-6   2014.7

     More details

    Language:English  

  343. Design of Reliable Optical Path Networks that Consist of Large Scale Subsystem-Modular OXC Nodes Reviewed

    K. Sato, H. Hasegawa and K. Sato

    OECC/ACOFT2014     page: MO1A-3   2014.7

     More details

    Language:English  

  344. Dynamic Control of Optical Path Networks by Utilizing Adaptive Wavelength Grouping and Link Fiber Selection Reviewed

    K. Oka, H. Hasegawa, and K. Sato

    Photonics in Switching 2014     page: PM4C.2   2014.7

     More details

    Language:English  

  345. Optimum Power-budget Allocation for Large-scale Optical Switches Utilizing Cyclic Arrayed Waveguide Gratings Reviewed

    K. Ueda, Y. Mori, H. Hasegawa, and K. Sato

    Photonics in Switching 2014     page: JT5C.3   2014.7

     More details

    Language:English  

  346. Disruption Minimized Spectrum Defragmentation and Equalization of Bitrate Dependent Blocking in Semi-flexible Grid Networks Reviewed

    Z. Shen, H. Hasegawa, and K. Sato

    Photonics in Switching 2014     page: PW1B.2   2014.7

     More details

    Language:English  

  347. Cost Effective and Reliable Networking that Utilizes Subsystem Modular OXC Nodes

    K. Sato, H. Hasegawa and K. Sato

    WINS Workshop 2014     page: -   2014.7

     More details

    Language:English  

  348. A Novel Semi-flexible Grid Network Utilizing Aligned Frequency Slot Assignment

    Z. Shen, H. Hasegawa, and K. Sato

    WINS Workshop 2014     page: -   2014.7

     More details

    Language:English  

  349. Grouped Routingによるファイバ周波数利用効率の向上

    寺田佑貴・森洋二郎・長谷川浩・佐藤健一

    信学技報   Vol. 114 ( 109 ) page: 1-5(PN2014-1)   2014.6

     More details

    Language:Japanese  

  350. A Novel Flexible Grid/Semi-flexible Grid Optical Path Network Design Algorithm that Reserves Exclusive Frequency Slots for High Bitrate Signals Reviewed

    Z. Shen, H. Hasegawa, and K. Sato

    ONDM2014     page: S10.3   2014.5

     More details

    Language:English  

  351. Design of Grouped Routing Entity (GRE)-based Optical Networks with 100% Signal Quality Guarantee Reviewed

    A. Jirattigalachote, Y. Taniguchi, T. Ban, P. Monti, L. Wosinska, H. Hasegawa, and K. Sato

    ONDM2014     page: S8.2   2014.5

     More details

    Language:English  

  352. 機械学習に基づく動的性能制御によるルータの低消費電力化

    川瀬弘嗣・長谷川浩・佐藤健一

    電子情報通信学会2014年総合大会     page: B-7-29   2014.3

     More details

    Language:Japanese  

  353. 2段階ルーティング型光パスネットワークの動的制御

    岡孝一郎・長谷川浩・佐藤健一

    電子情報通信学会2014年総合大会     page: B-12-12   2014.3

     More details

    Language:Japanese  

  354. 電気クロスコネクト容量を考慮した階層化パスネットワークの動的制御

    平沢佑矩・長谷川浩・佐藤健一

    電子情報通信学会2014年総合大会     page: B-12-11   2014.3

     More details

    Language:Japanese  

  355. 初期割当と逐次再配置による無瞬断階層化パス再配置法

    大澤尚晃・長谷川浩・佐藤健一

    電子情報通信学会2014年総合大会     page: B-12-10   2014.3

     More details

    Language:Japanese  

  356. エラスティック光パスネットワークにおける高ビットレート信号専用周波数領域を用いた信号割当法

    沈志舒・長谷川浩・佐藤健一

    電子情報通信学会2014年総合大会     page: B-12-5   2014.3

     More details

    Language:Japanese  

  357. Port Count Analysis of Wavelength Routing Switch that Utilizes Cyclic AWGs

    Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    IEICE General Conference 2014     page: BS-1-26   2014.3

     More details

    Language:English  

  358. Fiber Capacity Enhancement Employing Grouped Optical Path Routing

    Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    IEICE General Conference 2014     page: BS-1-30   2014.3

     More details

    Language:English  

  359. 機械学習に基づくルータの動的性能制御による消費電力削減効果

    川瀬弘嗣・長谷川浩・佐藤健一

    第10回PN研究会学生ワークショップ     page: 5-8   2014.3

     More details

    Language:Japanese  

  360. サブシステムモジュラー型ノードから構成される光パスネットワークの高信頼化

    佐藤晃輔・長谷川浩・佐藤健一

    第10回PN研究会学生ワークショップ     page: 17-20   2014.3

     More details

    Language:Japanese  

  361. A 204.8 Tbps Throughput 64x64 Optical Cross-Connect Prototype that Allows C/D/C Add/Drop Reviewed

    K. Takaha, Y. Mori, H. Hasegawa, K. Sato, and T. Watanabe

    OFC/NFOEC2014     page: M2K.1   2014.3

     More details

    Language:English  

  362. 階層化光パスネットワークにおける波長変換・波長群変換器の導入効果 Invited

    沈志舒・長谷川浩・佐藤健一

    信学技報   Vol. 113 ( 455 ) page: 43-48(PN2013-98)   2014.3

     More details

    Language:Japanese  

  363. Performance Evaluations of Large-Scale OXC that Achieves Modular and Hitless Expansion Reviewed

    Y. Tanaka, H. Hasegawa and K. Sato

    OFC/NFOEC2014     page: W2A.50   2014.3

     More details

    Language:English  

  364. Fiber-nonlinearity Limitation of Transmission Distances in Ultra-dense Gridless Photonic Networks Reviewed

    Y. Mori, H. Hasegawa and K. Sato

    OFC/NFOEC2014     page: W2A.33   2014.3

     More details

    Language:English  

  365. Hardware Scale and Performance Evaluation of Compact OXC Add/Drop Architecture Reviewed

    H. Ishida, H. Hasegawa and K. Sato

    OFC/NFOEC2014     page: W1C.7   2014.3

     More details

    Language:English  

  366. Enhancement of Fiber Frequency Utilization by Employing Grouped Optical Path Routing Reviewed

    Y. Terada, Y. Mori, H. Hasegawa, and K. Sato

    OFC/NFOEC2014     page: W1C.6   2014.3

     More details

    Language:English  

  367. Low Crosstalk Wavelength Tunable Filter that Utilizes Symmetric and Asymmetric Mach-Zehnder Interferometers Reviewed

    S. Takashina, Y. Mori, H. Hasegawa, K. Sato and T.Watanabe

    OFC/NFOEC2014     page: Th3F.6   2014.3

     More details

    Language:English  

  368. 低クロストークを実現したアレイ導波路回折格子型光可変フィルタの構成

    高科翔一,森洋二郎,長谷川浩,佐藤健一,渡辺俊夫

    レーザー学会学術講演会第34回年次大会     page: G121aVII04   2014.1

     More details

    Language:Japanese  

  369. 大規模光クロスコネクトを用いた超大容量光ノード

    高羽健介,森 洋二郎,長谷川 浩,佐藤健一,渡辺俊夫

    レーザー学会学術講演会第34回年次大会     page: G121aVII06   2014.1

     More details

    Language:Japanese  

  370. Cyclic AWGを用いた大規模波長ルーティングスイッチ

    上田 恒,森 洋二郎,長谷川 浩,佐藤健一

    レーザー学会学術講演会第34回年次大会     page: G121aVII05   2014.1

     More details

    Language:Japanese  

  371. A novel elastic optical path network that utilizes bitrate-specific anchored frequency slot arrangement Reviewed

    Zhi-shu Shen, Hiroshi Hasegawa, Ken-ichi Sato, Takafumi Tanaka, and Akira Hirano

    OSA Optics Express   Vol. 22 ( 3 ) page: 3169-3179   2014.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  372. Large capacity optical networks applying multi-stage hetero-granular optical path routing Reviewed

    Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato

    Elsevier Optical Switching and Networking   Vol. 11 ( A ) page: 105-112   2014.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  373. Effectiveness of Wavelength/Waveband Conversion and Its Allowable Cost Bound for Hierarchical Optical Path Networks Reviewed

    Z. Shen, H. Hasegawa, and K. Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 5 ( 11 ) page: 1262-1274   2013.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  374. A comparison of large-scale selective switch-based optical cross-connects Reviewed

    Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato

    2013 International Conference on Advanced Technologies for Communications (ATC)     page: 55-59   2013.11

     More details

    Language:English  

  375. 人口分布に基づくトラヒックが日本版フォトニックネットワークモデルに与える影響

    廣田悠介・坂野寿和・築島幸男・長谷川浩・釣谷剛宏・荒川伸一・戸出英樹

    電子情報通信学会2013年ソサイエティ大会     page: B-12-8   2013.9

     More details

    Language:Japanese  

  376. 多段型波長ルーティングスイッチにおける接続最適化

    長谷川 浩, 佐藤 健一

    電子情報通信学会2013年ソサイエティ大会     page: B-12-3   2013.9

     More details

    Authorship:Lead author   Language:Japanese  

  377. サブシステムモジュラー型光クロスコネクトノードにおけるAdd/Drop アーキテクチャのハードウェア規模削減効果

    石田 寛人, 長谷川 浩, 佐藤 健一

    電子情報通信学会2013年ソサイエティ大会     page: B-12-4   2013.9

     More details

    Language:Japanese  

  378. 無瞬断増設が可能なサブシステムモジュラー構成ノードアーキテクチャ

    田中康寛, 長谷川 浩, 佐藤 健一

    電子情報通信学会2013年ソサイエティ大会     page: B-12-5   2013.9

     More details

    Language:Japanese  

  379. 複数の周波数グリッドを導入したエラスティック光パスネットワークアーキテクチャ

    沈 志舒, 長谷川 浩, 佐藤 健一

    電子情報通信学会2013年ソサイエティ大会     page: B-12-6   2013.9

     More details

    Language:Japanese  

  380. エラスティック光パスネットワークの最適化 Invited

    長谷川 浩, 佐藤 健一

    電子情報通信学会2013年ソサイエティ大会     page: BI-2-2   2013.9

     More details

    Authorship:Lead author   Language:Japanese  

  381. A large-scale wavelength routing optical switch for data center networks Invited Reviewed

    K. Sato, H. Hasegawa, T. Niwa, T. Watanabe

    IEEE Communications Magazine   Vol. 51 ( 9 ) page: 46-52   2013.9

     More details

    Language:English  

  382. Performance Evaluations of Large-scale OXCs that Utilize Multi-stage Hetero-granular Optical Path Switching Reviewed

    Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato

    ECOC2013     page: Th.2.E.3   2013.9

     More details

    Language:English  

  383. Subsystem Modular OXC Architecture that Achieves Disruption Free Port Count Expansion Reviewed

    Y. Tanaka, Y. Iwai, H. Hasegawa, and K. Sato

    ECOC2013     page: Th.2.E.4   2013.9

     More details

    Language:English  

  384. A Novel Semi-flexible Grid Optical Path Network that Utilizes Aligned Frequency Slot Arrangement Reviewed

    Z. Shen, H. Hasegawa, K. Sato, T. Tanaka, and A. Hirano

    ECOC2013     page: We.2.E.2   2013.9

     More details

    Language:English  

  385. Evaluation of Hardware Requirements for Largescale OXC Architecture Employing Wavelength Switching and Fiber Selection Reviewed

    Toshinori Ban, Hai-Chau Le, Hiroshi Hasegawa, and Ken-ichi Sato

    The 18th OptoElectronics and Communications Conference (OECC2013)     page: WT2-2   2013.7

     More details

    Language:English  

  386. Development of Ultra-Compact 8x8 Waveband Cross-connect Reviewed

    Kensuke Takaha, Toshinori Ban, Hiroshi Hasegawa, Kenichi Sato, Hiroshi Takahashi, and Masayuki Okuno

    The 18th OptoElectronics and Communications Conference (OECC2013)     page: WT2-3   2013.7

     More details

    Language:English  

  387. Performance Evaluation of Large-scale OXC Architectures that Utilize Intra-node Routing Restriction Invited Reviewed

    Hai-Chau Le, Toshinori Ban, Hiroshi Hasegawa, and Ken-ichi Sato

    The 18th OptoElectronics and Communications Conference (OECC2013)     page: MQ2-2   2013.7

     More details

    Language:English  

  388. An efficient add/drop architecture for large-scale subsystem-modular OXC Reviewed

    Hiroto Ishida, Hiroshi Hasegawa, Ken-ichi Sato

    2013 15th International Conference on Transparent Optical Networks (ICTON 2013)     page: We.A1.5   2013.6

     More details

    Language:English  

  389. 日本の地域特性を考慮したフォトニックネットワークモデルの検討

    坂野 寿和, 築島 幸男, 長谷川 浩, 釣谷 剛宏, 廣田 悠介, 荒川 伸一, 戸出 英樹

    信学技報   Vol. 113 ( 91 ) page: PN2013-1(pp. 1-6)   2013.6

     More details

    Language:Japanese  

  390. 波長変換・波長群変換器の導入による階層化光パスネットワークのコスト削減効果

    沈 志舒, 長谷川 浩, 佐藤 健一

    信学技報   Vol. 113 ( 91 ) page: PN2013-5(pp. 25-30)   2013.6

     More details

    Language:Japanese  

  391. Topological Characteristic of Japan Photonic Network Model

    Shin'ichi Arakawa, Toshikazu Sakano, Yukio Tukishima, Hiroshi Hasegawa, Takehiro Tsuritani, Yusuke Hirota, Hideki Tode

    IEICE Technical Report   Vol. 113 ( 91 ) page: PN2013-2(pp.7-12)   2013.6

     More details

    Language:English  

  392. Coarse Granular Optical Routing Networks Utilizing Fine Granular Add/Drop Reviewed

    Yuki Taniguchi, Hiroshi Hasegawa, Ken-ichi Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 5 ( 7 ) page: 774 - 783   2013.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  393. Efficient Shared Protection Network Design Algorithm that Iterates Path Relocation with New Resource Utilization Metrics Reviewed

    Masakazu SATO, Hiroshi HASEGAWA, and Ken-ichi SATO

    IEICE Transactions on Communications   Vol. E96-B ( 04 ) page: 2012EBP3354   2013.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  394. Cost Effective Optical Networks that Utilize Hetero-granular Multi-stage Routing

    Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato

        page: B-12-23   2013.3

     More details

    Language:English  

  395. A 270 X 270 Optical Cross-Connect Switch Utilizing Wavelength Routing with Cascaded AWGs Reviewed

    Tomonobu Niwa, Hiroshi Hasegawa, Ken-ichi Sato

    OFC/NFOEC2013     page: OTh1A.3   2013.3

     More details

    Language:English  

  396. OXC Hardware Scale Reduction Attained by Using Interconnected Subsystem Architecture Reviewed

    Yuto Iwai, Hiroshi Hasegawa, and Ken-ichi Sato

    OFC/NFOEC2013     page: NW1J.2   2013.3

     More details

    Language:English  

  397. Compact Integrated Tunable Filter Utilizing AWG Routing Function and Small Switches Reviewed

    Tomonobu Niwa, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe, and Hiroshi Takahashi

    OFC/NFOEC2013     page: OW1C.2   2013.3

     More details

    Language:English  

  398. Impact of Wavelength/Waveband Convertors and the Cost Bound in Hierarchical Optical Path Networks Reviewed

    Zhi-shu Shen, Hiroshi Hasegawa, Ken-ichi Sato

    OFC/NFOEC2013     page: OM3A.2   2013.3

     More details

    Language:English  

  399. Dynamic Grouped Routing Optical Networks for Cost Effective and Agile Wavelength Services Reviewed

    Yuki Taniguchi, Hiroshi Hasegawa, Ken-ichi Sato

    OFC/NFOEC2013     page: OM3A.5   2013.3

     More details

    Language:English  

  400. Design strategies for Survivable Grouped Routing Entity (GRE)-based Optical Networks Reviewed

    Hiroshi Hasegawa, Yuki Taniguchi, Ken-ichi Sato, Amornrat Jirattigalachote, Paolo Monti, Lena Wosinska

    DRCN2013     page: 148-154   2013.3

     More details

    Authorship:Lead author   Language:English  

  401. Performance Evaluation of Large Capacity Ultra-Compact Waveband Cross-Connect Reviewed

    T. Ban, K. Ishii, H. Hasegawa, K. Sato, H. Takahashi, M. Okuno

    IEEE Photonics Technology Letters   Vol. 25 ( 5 ) page: 446-449   2013.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  402. Performance Evaluation of Large Capacity Ultra-compact Waveband Cross-connect Reviewed

    Toshinori Ban, Kiyo Ishii, Hiroshi Hasegawa, Ken-ichi Sato, Hiroshi Takahashi, and Masayuki Okuno

    IEEE Photonic Technology Letters   Vol. 25 ( 5 ) page: 446-449   2013.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  403. A novel large-scale OXC architecture and an experimental system that utilizes wavelength path switching and fiber selection Reviewed

    Toshinori Ban, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe, and Hiroshi Takahashi

    OSA Optics Express   Vol. 21 ( 1 ) page: 469-477   2013.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  404. A large-scale photonic node architecture that utilizes interconnected OXC subsystems Reviewed

    Yuto Iwai, Hiroshi Hasegawa, and Ken-ichi Sato

    OSA Optics Express   Vol. 21 ( 1 ) page: 478-487   2013.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  405. An efficient heuristic waveband assignment algorithm for hierarchical optical path networks utilizing wavelength convertors Reviewed

    Z. Shen, H. Hasegawa, and K. Sato

    ELSEVIER Optical Switching and Networking   Vol. 10 ( 1 ) page: 54-61   2013.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  406. PCE-based fast path control in multi-domain photonic networks Reviewed

    Y. Iizawa, S. Araki, S. Ishida, I. Nishioka, K. Shimada, H. Hasegawa, K. Sato

    ELSEVIER Optical Switching and Networking   Vol. 10 ( 1 ) page: 32-43   2013.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  407. Impact of Elastic Optical Paths that Adopt Distance Adaptive Modulation to Create Efficient Network Reviewed

    Tatsumi TAKAGI, Hiroshi HASEGAWA, Ken-ichi SATO, Yoshiaki SONE, Akira HIRANO, and Masahiko JINNO

    IEICE TRANSACTIONS on Communications   Vol. E95-B ( 12 ) page: (未決定)   2012.12

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  408. Formulation of MUX/DEMUX Functions for Multiple Input-Output Port Cyclic AWG Reviewed

    Kiyo Ishii, Hiroshi Hasegawa, and Ken-ichi Sato

    ACP2012     page: AS4A.4   2012.11

     More details

    Language:English  

  409. Quasi-Scheduled Optical Path Routing and Wavelength Assignment That Uses Expected Traffic Variation Reviewed

    Naoaki Osawa, Hiroshi Hasegawa, and Ken-ichi Sato

    ACP2012     page: AS2D.4   2012.11

     More details

    Language:English  

  410. Design of Optical Path Networks Employing Large-capacity WSS/WBSS-Combined Optical Cross-connects Reviewed

    Hai Chau Le, Hiroshi Hasegawa, and Ken-ichi Sato

    ACP2012     page: AF4A.49   2012.11

     More details

    Language:English  

  411. Efficient Routing Strategies for Interconnected Small Scale OXC Sub-System Networks Reviewed

    Yuto Iwai, Hiroshi Hasegawa, and Ken-ichi Sato

    ACP2012     page: ATh2D.2   2012.11

     More details

    Language:English  

  412. Performance Evaluation of Large-Scale OXC Architecture Employing Wavelength Path Switching and Fiber Selection Reviewed

    Toshinori Ban, Hiroshi Hasegawa, and Ken-ichi Sato

    ACP2012     page: ATh2D.4   2012.11

     More details

    Language:English  

  413. A Novel Large-Scale Wavelength Routing Switch Configuration Exploiting Small Arrayed Waveguide Gratings Reviewed

    Tomonobu Niwa, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe, and Hiroshi Takahashi

    ACP2012     page: ATh2C.4   2012.11

     More details

    Language:English  

  414. Evaluations of OXC Hardware Scale and Network Resource Requirements of Different Optical Path Add/Drop Ratio Restriction Schemes Reviewed

    Fumisato Naruse, Yoshiyuki Yamada, Hiroshi Hasegawa, and Ken-ichi Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 4 ( 11 ) page: B26-B34   2012.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  415. Optical Fast Circuit Switching Networks Employing Dynamic Waveband Tunnel Reviewed

    Takahiro Ogawa, Hiroshi HASEGAWA, and Ken-ichi SATO

    IEICE TRANSACTIONS on Communications   Vol. E95-B ( 10 ) page: (未決定)   2012.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  416. Router Power Reduction Through Dynamic Performance Control Based on Traffic Predictions Reviewed

    Hiroyuki Ito, Hiroshi HASEGAWA, and Ken-ichi SATO

    IEICE TRANSACTIONS on Communications   Vol. E95-B ( 10 ) page: (未決定)   2012.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  417. Performance evaluation of optical path networks utilizing waveband selective switch-based cross-connects Reviewed

    H. -C. Le, T.-B. Nguyen, H. Hasegawa, and K. Sato

    2012 International Conference on Advanced Technologies for Communications (ATC)     page: 323-326   2012.10

     More details

    Language:English  

  418. 波長グループ化とファイバ選択に基づく大規模光クロスコネクトアーキテクチャ,

    坂俊憲, 長谷川 浩, 佐藤健一,

    電子情報通信学会2012年ソサイエティ大会予稿集     page: B-12-9   2012.9

     More details

    Language:Japanese  

  419. トラフィック変動予測を利用した初期割当及び予測誤差に対応した追加割当による2段階光パス波長経路設定法

    大澤尚晃, 長谷川 浩, 佐藤健一,

    電子情報通信学会2012年ソサイエティ大会予稿集     page: B-12-8   2012.9

     More details

    Language:Japanese  

  420. トラフィック変動予測に基づくリンク容量の動的制御によるネットワーク低消費電力化

    早川和希, 長谷川 浩, 佐藤健一

    電子情報通信学会2012年ソサイエティ大会予稿集     page: B-7-48   2012.9

     More details

    Language:Japanese  

  421. A Large Capacity Optical Cross-connect Architecture Exploiting Multi-Granular Optical Path Routing Reviewed

    Hai-Chau Le, Hiroshi Hasegawa, Ken-chi Sato

    Photonic in Switching 2012 (PS2012)     page: Fr-S26-O14   2012.9

     More details

    Language:English  

  422. Shared Protected Elastic Optical Path Network Design That Applies Iterative Re-Optimization Based on Resource Utilization Efficiency Measures Reviewed

    Shun Kosaka, Hiroshi Hasegawa, Ken-ichi Sato, Takafumi Tanaka, Akira Hirano, Masahiko Jinno

    38th European Conference and Exhibition on Optical Communication (ECOC2012)     page: Tu.4.D.5   2012.9

     More details

    Language:English  

  423. Large-Scale Photonic Node Architecture That Utilizes Interconnected Small Scale Optical Cross-Connect Sub-Systems Reviewed

    Yuto Iwai, Hiroshi Hasegawa, Ken-ichi Sato

    38th European Conference and Exhibition on Optical Communication (ECOC2012)     page: We.3.D.3   2012.9

     More details

    Language:English  

  424. A Novel Large-Scale OXC Architecture That Employs Wavelength Path Switching and Fiber Selection Reviewed

    Toshinori Ban, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe, Hiroshi Takahashi

    38th European Conference and Exhibition on Optical Communication (ECOC2012)     page: We.3.D.1   2012.9

     More details

    Language:English  

  425. Hardware Scale Reduction in Large-Port Count OXCs Exploiting Selective Switch based Coarse Granular Routing Reviewed

    Yuki Taniguchi, Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato

    Photonic in Switching 2012 (PS2012)     page: We-S31-O03   2012.9

     More details

    Language:English  

  426. Impairment-Aware Multicast Tree Design for Hierarchical Optical Path Networks Reviewed

    Yusuke Hachisuka, Hiroshi Hasegawa, Ken-ichi Sato

    Photonic in Switching 2012 (PS2012)     page: Th-S33-O08   2012.9

     More details

    Language:English  

  427. Effectiveness of Waveband Conversion for Hierarchical Optical Path Networks and the Allowable Cost Bound Reviewed

    Zhi-shu Shen, Hiroshi Hasegawa, Ken-ichi Sato

    Photonic in Switching 2012 (PS2012)     page: Th-S34-O10   2012.9

     More details

    Language:English  

  428. Compact Tunable Filter Realized with Combination of Wavelength Routing and Switch Function Reviewed

    Tomonobu Niwa, Hiroshi Hasegawa and Ken-ichi Sato

    Photonic in Switching 2012 (PS2012)     page: Th-S23-O06   2012.9

     More details

    Language:English  

  429. トラフィック変動予測情報を用いた光パス波長経路ケジューリング法におけるパラメータ依存性

    大澤 尚晃, 長谷川 浩, 佐藤 健一

    電子情報通信学会 第8回PN研究会学生ワークショップ予稿集     page: 21-23   2012.8

     More details

    Language:Japanese  

  430. Impact of Optical Transparent Reach on the Performance of Translucent Multi-granular Optical Path Networks Reviewed

    Hai-Chau Le, Hiroshi Hasegawa, Ken-chi Sato

    The Fourth International Conference on Communications and Electronics 2012 (ICCE2012)     page: CN1-3   2012.8

     More details

    Language:English  

  431. Design of bandwidth abundant photonic networks that utilize flexible/multi-granular optical path routing Invited Reviewed

    Hiroshi Hasegawa and Ken-ichi Sato

    2012 17th Opto-Electronics and Communications Conference (OECC2012)     page: 3A2-5   2012.7

     More details

    Authorship:Lead author   Language:English  

  432. Optical Node Architectures That Utilize Dedicated Add/Drop Switches to Realize Colorless, Directionless and Contentionless Capability Reviewed

    Yoshiyuki YAMADA, Hiroshi HASEGAWA, Ken-ichi SATO

    IEICE TRANSACTIONS on Communications   Vol. E95-B ( 4 ) page: 1307-1316   2012.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  433. 受信ノード群間の一般化包含関係を用いた波長群マルチキャストネットワーク設計法

    蜂須賀 悠介, 長谷川 浩, 佐藤 健一

    電子情報通信学会 第7回PN研究会学生ワークショップ 予稿集     page: 17-20   2012.3

     More details

    Language:Japanese  

  434. トラフィック変動予測情報を用いた光パスの動的経路・波長制御法

    大澤 尚晃, 長谷川 浩, 佐藤 健一

    電子情報通信学会 第7回PN研究会学生ワークショップ 予稿集     page: 21-24   2012.3

     More details

    Language:Japanese  

  435. [奨励講演]Colorless, Directionless, Contentionless機能を考慮したAdd/Drop分離型光ノードアーキテクチャ Invited

    山田 祥之, 長谷川 浩, 佐藤 健一

    電子情報通信学会技術研究報告 フォトニックネットワーク研究会   Vol. 111 ( PN-475 ) page: PN2011-88, pp. 37-41   2012.3

     More details

    Language:Japanese  

  436. Virtual Fiber Networking and Impact of Optical Path Grooming on Creating Efficient Layer One Services Reviewed

    Fumisato NARUSE, Yoshiyuki YAMADA, Hiroshi HASEGAWA, Ken-ichi SATO

    IEICE TRANSACTIONS on Communications (Special Section on New/Next Generation Photonic Networking and Future Networks)   Vol. E95-B ( 3 ) page: 723-729   2012.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  437. 周波数資源の逐次最小化に基づく共有プロテクション型エラスティック光パスネットワーク設計法

    小坂 駿, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2012年総合大会     page: B-12-22   2012.3

     More details

    Language:Japanese  

  438. 波長リソースおよびファイバ使用率の繰り返し最適化に基づく共有型光パスプロテクションネットワーク設計法

    佐藤 正和, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2012年総合大会     page: B-12-21   2012.3

     More details

    Language:Japanese  

  439. 経路優先度事前計算に基づく準集中制御型経路波長割当法の性能評価

    大野 寛明, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2012年総合大会     page: B-12-20   2012.3

     More details

    Language:Japanese  

  440. 小規模光クロスコネクトのスタック構成を用いた大容量フォトニックノード

    岩井 祐斗, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2012年総合大会     page: B-12-9   2012.3

     More details

    Language:Japanese  

  441. 事前予約情報に基づく階層化パスネットワークの動的制御

    遠藤 慎也, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2012年総合大会     page: B-12-8   2012.3

     More details

    Language:Japanese  

  442. Impairment-Aware Routing and Waveband Assignment for Efficient Optical Transport Networks Reviewed

    Amornrat Jirattigalachote, Yoshiyuki Yamada, Cicek Cavdar, Paolo Monti, Lena Wosinska, Hiroshi Hasegawa, Ken-ichi Sato

    Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC2012)     page: OW3A.2   2012.3

     More details

    Language:English  

  443. Compact Wavelength Tunable Filter Fabricated on a PLC Chip That Construct Colorless/Directionless/Contentionless Drop Function in Optical Cross-Connect Reviewed

    Tomonobu Niwa, Ryosuke Hirako, Hiroshi Hasegawa, Ken-ichi Sato, Masayuki Okuno, Toshio Watanabe

    Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC2012)     page: OTh3D.6   2012.3

     More details

    Language:English  

  444. Evaluations of Different Optical Path Add/Drop Ratio Restriction Schemes on OXC Hardware Scale and Network Resource Requirement Reviewed

    Fumisato Naruse, Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato

    Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC2012)     page: OTh1A.5   2012.3

     More details

    Language:English  

  445. Colorless/Directionless/Contentionless Optical Add/Drop Architecture Applying Waveband Technologies and Colorless MUX/DEMUX Reviewed

    Yoshiyuki Yamada, Ryosuke Hirako, Hiroshi Hasegawa, Ken-ichi Sato

    Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC2012)     page: JTh2A.44   2012.3

     More details

    Language:English  

  446. A Novel Optical Networking Scheme Utilizing Coarse Granular Optical Routing and Fine Granular Add/Drop Reviewed

    Yuki Taniguchi, Yoshiyuki Yamada, Hiroshi Hasegawa, Ken-ichi Sato

    Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference (OFC/NFOEC2012)     page: JW2A.2   2012.3

     More details

    Language:English  

  447. Coarse Granular Routing Optical Networks for Future Optical Services Invited

    H. Hasegawa and K. Sato

    Proceedings of IWOO2011(6th International Workshop on OPS & OCDMA)     page: 24   2011.12

     More details

    Authorship:Lead author   Language:English  

  448. Impact of electrical grooming and regeneration of wavelength paths in creating hierarchical optical path networks Reviewed

    H.C. Le, H. Hasegawa, and K. Sato

    OSA Optics Express   Vol. 19 ( 26 ) page: 882-894   2011.12

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  449. Hybrid hierarchical optical path network design algorithms utilizing ILP optimization Invited Reviewed

    L. H. Chau, H. Hasegawa, K. Sato

    Elsevier, Optical Switching and Networking   Vol. 8 ( 4 ) page: 226-234   2011.12

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  450. A dynamic and quasi-centralized path control method employing traffic-prediction-based route pre-prioritization Invited Reviewed

    H. Ohno, H. Hasegawa, K. Sato

    Elsevier, Optical Switching and Networking   Vol. 8 ( 4 ) page: 242-248   2011.12

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  451. Efficient Iterative Design Algorithm for Enhancing Resource Utilization of Shared Protected Optical Path Networks Reviewed

    Masakazu Sato, Hiroshi Hasegawa, Ken-Ichi Sato

    2011 8th International Workshop on the Design of Reliable Communication Networks (DRCN2011)     page: 102-109   2011.11

     More details

    Language:English  

  452. Multi-domain path control system for large-scale photonic networks Reviewed

    S. Araki, H. Hasegawa, and K. Sato

    ACP 2011 (Asia Communications and Photonics Conference and Exhibition 2011)     page: CD-ROM   2011.11

     More details

    Authorship:Lead author   Language:English  

  453. Design algorithm of waveband multicast tree in hierarchical optical path networks that utilizes grouping of destination node sets Reviewed

    Y. Hachisuka, H. Hasegawa, and K. Sato

    ACP 2011 (Asia Communications and Photonics Conference and Exhibition 2011)     page: CD-ROM   2011.11

     More details

    Authorship:Lead author   Language:English  

  454. Design of hierarchical optical path networks that utilize wavelength conversion and evaluation of the allowable cost bound Reviewed

    Z. Shen, H. Hasegawa, and K. Sato

    ACP 2011 (Asia Communications and Photonics Conference and Exhibition 2011)     page: CD-ROM   2011.11

     More details

    Authorship:Lead author   Language:English  

  455. Compact Hierarchical Optical Cross-Connect Utilizing Newly Designed Waveband Selective Switch with Extra Ports for Grooming Reviewed

    Ryosuke Hirako, Kiyo Ishii, Hiroshi Hasegawa, Ken-ichi Sato, Hiroshi Takahashi, Masayuki Okuno

    ECOC2011     page: Th.12.A.4   2011.9

     More details

    Language:English  

  456. Impact of Electrical Grooming and Regeneration of Wavelength Paths in Creating Hierarchical Optical Path Networks Reviewed

    Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato

    ECOC2011     page: We.8.K.2   2011.9

     More details

    Language:English  

  457. Disruption Minimized Spectrum Defragmentation in Elastic Optical Path Networks That Adopt Distance Adaptive Modulation Reviewed

    Tatsumi Takagi, Hiroshi Hasegawa, Ken-ichi Sato, Yoshiaki Sone, Akira Hirano, Masahiko Jinno

    ECOC2011     page: Mo.2.K.3,   2011.9

     More details

    Language:English  

  458. Development of Hierarchical Optical Path Cross-Connect Systems Employing Wavelength/Waveband Selective Switches Reviewed

    Kiyo Ishii, Shin-ichi Mitsui, Hiroshi Hasegawa, Ken-ichi Sato, Shin Kamei, Masayuki Okuno, and Hiroshi Takahashi

    J. OPT. COMMUN. NETW.   Vol. 3 ( 7 ) page: 559-567   2011.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  459. Development of Large Capacity Ultra-compact Waveband Cross-connect Reviewed

    T. Ban, K. Ishii, H. Hasegawa, K. Sato, H. Takahashi, and M. Okuno

    OECC2011     page: 6A1_2   2011.7

     More details

    Language:English  

  460. Development of Single PLC-Chip Waveband Selective Switch that Has Extra Ports for Grooming and Termination Reviewed

    R. Hirako, K. Ishii, H. Hasegawa, K. Sato, H. Takahashi, and M. Okuno

    OECC2011     page: 7E1_4   2011.7

     More details

    Language:English  

  461. 効率的なグルーミング率制約を実現する階層型光クロスコネクトノードアーキテクチャ

    平光亮介, 石井紀代, 長谷川浩, 佐藤健一, 高橋浩, 奥野将之

    電子情報通信学会技術研究報告 フォトニックネットワーク研究会   Vol. 111 ( 93 ) page: PN2011-11, pp. 55-60   2011.6

     More details

    Language:Japanese  

  462. Compact matrix-switch-based hierarchical optical path cross-connect with colorless waveband add/drop ratio restriction Reviewed

    R. Hirako, H. Hasegawa, K. Sato, and M. Okuno, and O. Moriwaki

    IEICE Trans. Commun.   Vol. E94-B ( 4 ) page: 918-927   2011.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  463. 平滑化とGeneralized Gravityによる交流トラフィック行列の推定法

    白紅霞, 長谷川 浩, 佐藤健一

    電子情報通信学会 フォトニックネットワーク研究会学生ワークショップ     page: 21-22   2011.3

     More details

    Language:Japanese  

  464. 複数ファイバによりリンクが構成されるネットワークにおけるトラフィック分布予測情報を用いた適応的光パス制御法

    大野寛明, 長谷川 浩, 佐藤健一

    電子情報通信学会 フォトニックネットワーク研究会学生ワークショップ     page: 17-20   2011.3

     More details

    Language:Japanese  

  465. Novel Hierarchical Optical Cross-Connect Architecture Utilizing Dedicated Add/Drop Switches That Effectively Offer Colorless and Directionless Capability Reviewed

    Y.Yamada, H.Hasegawa, and K.Sato

    OFC/NFOEC 2011     page: OThR6   2011.3

     More details

    Language:English  

  466. Hybrid Optical WDM Networks Utilizing Optical Waveband and Electrical Wavelength Cross-Connects Reviewed

    H.-C. Le, H.Hasegawa, and K.Sato

    OFC/NFOEC 2011     page: NMC3   2011.3

     More details

    Language:English  

  467. Dynamic Routing and Frequency Slot Assignment for Elastic Optical Path Networks That Adopt Distance Adaptive Modulation Reviewed

    T. Takagi, H. Hasegawa, K. Sato, Y. Sone, B. Kozicki, A. Hirano, and M. Jinno

    OFC/NFOEC 2011     page: OThI7   2011.3

     More details

    Language:English  

  468. Flexible and Compact Hierarchical Optical Cross-Connect Node with Waveband Add/Drop Restriction Reviewed

    R. Hirako, K. Ishii, H.Hasegawa, and K.Sato

    OFC/NFOEC 2011     page: OTuE5   2011.3

     More details

    Language:English  

  469. Optical Network Design Algorithms That Consider Optical Path Add/Drop Ratio Restrictions for OXC Hardware Scale Reduction Reviewed

    F.Naruse, Y.Yamada, H.Hasegawa, and K.Sato

    OFC/NFOEC 2011     page: NThC3   2011.3

     More details

    Language:English  

  470. 大粒度ルーティング光パスネットワークにおけるグルーミング率の分布解析

    山田 祥之, 長谷川 浩, 佐藤 健一

    電子情報通信学会 フォトニックネットワーク研究会学生ワークショップ     page: 7-9   2011.3

     More details

    Language:Japanese  

  471. トラフィック分布予測情報を用いた適応的光パスネットワーク制御法における探索経路数への依存性

    大野寛明, 長谷川 浩, 佐藤健一

    電子情報通信学会 フォトニックネットワーク研究会学生ワークショップ     page: 5-6   2011.3

     More details

    Language:Japanese  

  472. 大粒度ルーティング光パスネットワークにおける中間グルーミング導入の効果

    山田 祥之, 長谷川 浩, 佐藤 健一

    電子情報通信学会 フォトニックネットワーク研究会 技術研究報告   ( PN2010-14 ) page: 13-17   2011.3

     More details

    Language:Japanese  

  473. 超小型波長群クロスコネクトの特性評価

    坂俊憲,石井紀代,長谷川浩,佐藤健一,高橋浩,奥野将之

    電子情報通信情報学会2011年総合大会     page: B-12-18   2011.3

     More details

    Language:Japanese  

  474. 多段選択型チューナブルフィルタによるOXCノードColorless/Directionless/Contentionlessドロップ機能の実現

    丹羽朝信,平光亮介,長谷川浩,佐藤健一

    電子情報通信情報学会2011年総合大会     page: B-12-17   2011.3

     More details

    Language:Japanese  

  475. 高速光回線交換におけるトラフィック分布に応じた波長群幅可変化の効果

    谷口侑磯,小川貴弘,長谷川浩,佐藤健一

    電子情報通信情報学会2011年総合大会     page: B-12-14   2011.3

     More details

    Language:Japanese  

  476. 階層化光パスネットワークにおける波長群マルチキャスト配信

    蜂須賀悠介,長谷川浩,佐藤健一

    電子情報通信情報学会2011年総合大会     page: B-12-13   2011.3

     More details

    Language:Japanese  

  477. 波長変換を考慮した多階層光パスネットワークの設計法

    沈志舒,長谷川浩,佐藤健一

    電子情報通信情報学会2011年総合大会     page: B-12-12   2011.3

     More details

    Language:Japanese  

  478. 繰り返し設計による予備リソース共用度向上を図る共有型光パスプロテクションネットワーク設計法

    佐藤正和,長谷川浩,佐藤健一

    電子情報通信情報学会2011年総合大会     page: B-12-11   2011.3

     More details

    Language:Japanese  

  479. ルータ性能の動的制御による低消費電力化とパケット棄却率推定法

    伊藤弘行,長谷川浩,佐藤健一

    電子情報通信情報学会2011年総合大会     page: B-7-20   2011.3

     More details

    Language:Japanese  

  480. [奨励講演]波長変換・波長群変換機能を有する多階層光パスネットワークの二段階整数線形計画に基づく設計法 Invited

    中野 一輝, 山田 祥之, 長谷川 浩, 佐藤 健一

    電子情報通信学会技術研究報告 フォトニックネットワーク研究会   Vol. 110 ( 431 ) page: PN2010-63, pp. 41-44   2011.2

     More details

    Language:Japanese  

  481. A dynamic path control method applying traffic-prediction-based route pre-prioritization Reviewed

    H.Ohno, H.Hasegawa, and K.Sato

    ACP2010     page: FQ4   2010.12

     More details

    Language:English  

  482. Ring Connecting Node Architecture Employing Variable Filter Reviewed

    T.Oono, K.Ishii, H.Hasegawa, and K.Sato

    ACP2010     page: ThH4   2010.12

     More details

    Language:English  

  483. Switch Scale Evaluation for Optical Cross-Connects Considering Add/Drop Ratio Restriction Reviewed

    R. Hirako, K. Ishii, H.Hasegawa, and K.Sato

    ACP2010     page: ThH3   2010.12

     More details

    Language:English  

  484. Hybrid Hierarchical Optical Path Network Design Algorithm with 2-stage ILP Optimization Reviewed

    H.-C. Le, H.Hasegawa, and K.Sato

    ACP2010     page: ThD3   2010.12

     More details

    Language:English  

  485. Hierarchical Optical Path Network Design Algorithm Considering Waveband Add/Drop Ratio Constraint Reviewed

    H.-C. Le, H. Hasegawa, and K. Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 2 ( 10 ) page: 872–882   2010.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  486. マトリクススイッチを用いたコンパクトな階層化光パスクロスコネクトノード Invited

    長谷川浩, 佐藤健一, 高橋浩, 奥野将之

    電子情報通信学会2010年度ソサイエティ大会     page: BCI-1-4   2010.9

     More details

    Authorship:Lead author   Language:Japanese  

  487. 可変フィルタを用いた連接リング間接続ノード伝送試験

    大野高明, 石井紀代, 長谷川浩, 佐藤健一

    電子情報通信学会2010年度ソサイエティ大会     page: B-12-7   2010.9

     More details

    Language:Japanese  

  488. トラフィック分布予測情報を用いた適応的光パスネットワーク制御法

    大野寛明, 長谷川 浩, 佐藤健一

    電子情報通信学会2010年度ソサイエティ大会     page: B-12-6   2010.9

     More details

    Language:Japanese  

  489. 事前予約情報を利用した階層化パスネットワークの動的制御

    遠藤慎也, 長谷川浩, 佐藤健一

    電子情報通信学会2010年度ソサイエティ大会     page: B-12-5   2010.9

     More details

    Language:Japanese  

  490. 繰り返しパス再配置に基づく共有型光パスプロテクションネットワーク設計法

    佐藤正和, 長谷川浩, 佐藤健一

    電子情報通信学会2010年度ソサイエティ大会     page: B-7-9   2010.9

     More details

    Language:Japanese  

  491. Development of Compact Hierarchical Optical Path Cross-Connect Prototype Utilizing Integrated Colorless Multi/Demultiplexers Reviewed

    Ryosuke Hirako, Kiyo Ishii, Hiroshi Hasegawa, and Ken-Ichi Sato

    ECOC2010     page: We.8.A.5   2010.9

     More details

    Language:English  

  492. Algorithms for Maximizing Spectrum Efficiency in Elastic Optical Path Networks that Adopt Distance Adaptive Modulation Reviewed

    T. Takagi, H. Hasegawa, K. Sato, T. Tanaka, B. Kozicki, Y. Sone, and M. Jinno

    ECOC2010     page: We.8.D.5   2010.9

     More details

    Language:English  

  493. Coarse Granular Routing in Optical Path Networks and Impact of Supplemental Intermediate Grooming Reviewed

    Yoshiyuki Yamada, Hiroshi Hasegawa, and Ken-Ichi Sato

    ECOC2010     page: Th.10.F.1   2010.9

     More details

    Language:English  

  494. Hierarchical Optical Path Network Design for Future Peta-Bit Class Networks Invited Reviewed

    H. Hasegawa, K. Sato

    OECC2010     page: 9A4-1   2010.7

     More details

    Authorship:Lead author   Language:English  

  495. Performance Test of Ultra-Compact Waveband Cross-Connect Module Reviewed

    K.Ishii, H.Hasegawa, K.Sato, M.Okuno, H.Takahashi

    The 9th International Conference on Optical Internet (COIN2010)     page: TuC1-6   2010.7

     More details

    Language:English  

  496. Optical Fast Circuit Switching Networks Applying Waveband Grooming Reviewed

    T.Ogawa, Y.Yamada, H.Hasegawa, K.Sato

    The 9th International Conference on Optical Internet (COIN2010)     page: WeB1-4   2010.7

     More details

    Language:English  

  497. K.Shimada, S.Araki, H.Hasegawa, K.Sato, “A Dynamic Routing Algorithm for Multi-Domain Photonic Networks using Maximum Flow Information between Domain Boundaries Reviewed

    K.Ishii, H.Hasegawa, K.Sato, M.Okuno, H.Takahashi

    The 9th International Conference on Optical Internet (COIN2010)     page: TuC2-4   2010.7

     More details

    Language:English  

  498. Development of Hierarchical Optical Cross-Connect System for ROADM-Ring Connection Using PLC Technologies Reviewed

    K. Ishii, O. Moriwaki, H. Hasegawa, K. Sato, Y. Jinnouchi, M. Okuno, H. Takahashi,

    IEEE Photonics Technology Letters   Vol. 22 ( 7 ) page: 498-500   2010.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  499. Adaptive Self-Reconfigurable Network to Create Cost-Effective Bandwidth-on-Demand Services Reviewed

    M. Nakagawa, H. Hasegawa, K. Sato, T. Takeda, and K. Shiomoto

    OFC/NFOEC2010     page: NWA2   2010.3

     More details

    Language:English  

  500. 波長群変換・波長変換機能を有する多階層光パスネットワークの設計法

    中野 一輝, 山田 祥之, 長谷川 浩, 佐藤 健一

    電子情報通信学会技術研究報告 フォトニックネットワーク研究会   Vol. 109 ( 455 ) page: PN2009-89, pp. 19-24   2010.3

     More details

    Language:Japanese  

  501. 階層化光パスネットワークの実現コスト分析と波長変換器の導入効果

    中野 一輝, 山田 祥之, 長谷川 浩, 佐藤 健一

    第三回フォトニックネットワーク研究会学生ワークショップ予稿集     page: 予稿集   2010.3

     More details

    Language:Japanese  

  502. 二段階ILPによる波長群変換・波長変換を考慮した多階層光パスネットワーク設計法

    中野 一輝, 山田 祥之, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2010年総合大会     page: B-12-31   2010.3

     More details

    Language:Japanese  

  503. ドメイン内フローを利用したマルチドメインフォトニックネットワーク動的光パスルーティング法

    島田 康平, 荒木 壮一郎, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2010年総合大会     page: B-12-29   2010.3

     More details

    Language:Japanese  

  504. 波長群パス専用線ネットワークにおける波長パスグルーミング効果

    成瀬文覚, 山田祥之, 長谷川 浩, 佐藤健一

    電子情報通信情報学会2010年総合大会     page: B-12-28   2010.3

     More details

    Language:Japanese  

  505. 波長群パスを導入した光回線交換ネットワーク

    小川 貴弘, 山田 祥之, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2010年総合大会     page: B-12-27   2010.3

     More details

    Language:Japanese  

  506. 可変フィルタを用いた連接リング間接続ノード構成

    大野 高明, 石井 紀代, 長谷川 浩, 佐藤 健一

    電子情報通信情報学会2010年総合大会     page: B-12-19   2010.3

     More details

    Language:Japanese  

  507. 階層化光パスネットワークノード用集積化カラーレス波長合分波器

    平光 亮介, 石井 紀代, 長谷川 浩, 佐藤 健一, 高橋 浩

    電子情報通信情報学会2010年総合大会     page: B-12-18   2010.3

     More details

    Language:Japanese  

  508. PLCデバイスを用いた多階層光クロスコネクトノード装置伝送試験

    野口 一人, 森脇 摂, 阪本 匡, 高橋 浩, 長谷川 浩, 佐藤 健一, 奥野 将之, 大森 保治

    電子情報通信情報学会2010年総合大会     page: B-12-17   2010.3

     More details

    Language:Japanese  

  509. ルータ性能の動的制御による低消費電力化

    伊藤 弘行, 長谷川 浩, 佐藤健一

    電子情報通信情報学会2010年総合大会     page: B-7-50   2010.3

     More details

    Language:Japanese  

  510. Terabit-scale Compact Hierarchical Optical Cross-connect System Employing PLC Devices and Optical Backplane Reviewed

    O. Moriwaki, K. Noguchi, H. Takahashi, T. Sakamoto, K. Sato, H. Hasegawa, M. Okuno, and Y. Ohmori

    OFC/NFOEC2010     page: Post-deadline   2010.3

     More details

    Language:English  

  511. Impacts of Waveband Capacity and Waveband Add/Drop Ratio on the Performance of ROADM-Ring Connecting Hierarchical Optical Path Cross-Connects Reviewed

    K. Ishii, H. Hasegawa, and K. Sato

    OFC/NFOEC2010     page: NMD1   2010.3

     More details

    Language:English  

  512. Demonstration of Compact Hierarchical Optical Path Cross-Connect Utilizing Wavelength/Waveband Selective Switches Reviewed

    S. Mitsui, H. Hasegawa, K. Sato, S. Kamei, H. Takahashi, and M. Okuno

    OFC/NFOEC2010     page: NThF4   2010.3

     More details

    Language:English  

  513. Wavelength assignment for concatenated ROADM ring networks and switch scale reduction in concatenating node Reviewed

    K. Ishii, H. Hasegawa, and K. Sato

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 2 ( 1 ) page: 67-79   2010.2

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  514. A new multi-state route scheduling algorithm based on traffic prediction Reviewed

    K. Obara, H. Hasegawa, K. Sato

    ONDM 2010 (14th Conference on Optical Network Design and Modeling)     page: P-12   2010.2

     More details

    Language:English  

  515. Impact of path granularity and operation interval on dynamic path network control Reviewed

    H. Ito, H. Hasegawa, and K. Sato

    ACP 2009 (Asia Communications and Photonics Conference and Exhibition 2009)     page: CD-ROM   2009.11

     More details

    Language:English  

  516. Evaluations on Physical and Optical Path Level Hierarchical Networks to Implement Optical Fast Circuit Switching Reviewed

    T. Ogawa, Y. Yamada, H. Hasegawa, K. Sato

    ACP 2009 (Asia Communications and Photonics Conference and Exhibition 2009)     page: CD-ROM   2009.11

     More details

    Language:English  

  517. A dynamic routing algorithm for multi-domain photonic networks using averaged link load information, Reviewed

    K. Shimada, S. Araki, H. Hasegawa, and K. Sato

    ACP 2009 (Asia Communications and Photonics Conference and Exhibition 2009)     page: CD-ROM   2009.11

     More details

    Language:English  

  518. Impact of waveband capacity on protected hierarchical optical path networks Reviewed

    Y. Yamada, H. Hasegawa, and K. Sato

    ACP 2009 (Asia Communications and Photonics Conference and Exhibition 2009)     page: CD-ROM   2009.11

     More details

    Language:English  

  519. Hierarchical Optical Path Network Design Algorithm that can Best Utilize WSS/WBSS based Cross-connects Reviewed

    H.-C. Le, H. Hasegawa, K. Sato

    Proc. of Photonics in Switching 2009     page: ThII2-3   2009.9

     More details

    Language:English  

  520. トラフィックデータの時間粒度がパス容量制御に与える効果 Reviewed

    伊藤,長谷川,佐藤

    電子情報通信学会ソサイエティ大会予稿集     page: B-7-17   2009.9

     More details

    Language:Japanese  

  521. 無瞬断でのパス再配置を考慮した動的ネットワーク制御法の効果 Reviewed

    中川,長谷川,佐藤,杉山,武田,塩本

    電子情報通信学会ソサイエティ大会予稿集     page: B-7-59   2009.9

     More details

    Language:Japanese  

  522. 波長パス需要数が少ない領域における多階層光パスネットワークのコスト解析

    中野,山田,長谷川,佐藤

    平成21年度電気関係学会東海支部連合大会     page: O-453   2009.9

     More details

    Language:Japanese  

  523. An Ultra-compact Waveband Cross-connect Switch Module to Create Cost-effective Multi-degree Reconfigurable Optical Node Reviewed

    K. Ishii, H. Hasegawa, K. Sato, M. Okuno, S. Kamei, and H. Takahashi

    Proc. of 35th European Conference on Optical Communication (ECOC2009)     page: 4.2.2   2009.9

     More details

    Language:English  

  524. Efficient ROADM-ring Connecting Node Switch Architecture that Utilizes Waveband Routing and its Realization with PLC Technologies Reviewed

    K.Ishii, O. Moriwaki, H. Hasegawa, K. Sato, Y. Jinnouchi, M. Okuno, and H. Takahashi

    Proc. of 35th European Conference on Optical Communication (ECOC2009)     page: 5.3.1   2009.9

     More details

    Language:English  

  525. Route and Wavelength/Waveband Assignment for Creation of Compact Hierarchical Optical Cross-Connect for Multi-Ring Connection Reviewed

    K. Ishii, H. Hasegawa, and K. Sato

    Proc. of 35th European Conference on Optical Communication (ECOC2009)     page: 4.6.2   2009.9

     More details

    Language:English  

  526. Hierarchical Optical Cross-Connect Architecture that Implements Colorless Waveband Add/Drop Ratio Restriction Utilizing a Novel Wavelength Multi/Demultiplexers Reviewed

    R. Hirako, K. Ishii, H. Hasegawa, K. Sato, and O. Moriwak

    Proc. of Photonics in Switching 2009     page: FrII2-2   2009.9

     More details

    Language:English  

  527. Low Loss and Cost-Effective Hierarchical Optical Path Cross-Connect Switch Architecture based on WSS/WBSS Reviewed

    S. Mitsui, H. Hasegawa, and K. Sato

    Proc. of Photonics in Switching 2009     page: FrII2-3   2009.9

     More details

    Language:English  

  528. Cyclic AWGを用いたモノリシック分散配置波長群選択スイッチ

    石井紀代、長谷川浩、佐藤健一、亀井新、奥野将之,高橋浩

    電子情報通信学会フォトニックネットワーク研究会技術研究報告   ( PN2009-16 ) page: 31-35   2009.8

     More details

    Language:Japanese  

  529. 波長群並びに波長パス切替によるプロテクション機能を有する高信頼化多階層光パスネットワーク

    山田、長谷川、佐藤

    電子情報通信学会フォトニックネットワーク研究会技術研究報告   ( PN2009-12 ) page: 7-11   2009.8

     More details

    Language:Japanese  

  530. Cyclic AWGを用いたモノリシック波長群選択スイッチ

    石井、長谷川、佐藤、亀井,高橋,奥野

    電子情報通信学会 フォトニックネットワーク研究会学生ワークショップ     page: 1-3   2009.3

     More details

    Language:Japanese  

  531. 階層化光パスネットワークにおける波長群・波長変換導入によるコスト削減効果

    中野、山田、長谷川、佐藤

    電子情報通信学会 フォトニックネットワーク研究会学生ワークショップ     page: 31-35   2009.3

     More details

    Language:Japanese  

  532. Survivable Hierarchical Optical Path Networks EmployingWaveband and Wavelength Path Protection Reviewed

    Y. Yamada, H. Hasegawa, K. Sato

    Prof. of OFC/NFOEC 2009     page: OWY3   2009.3

     More details

    Language:English  

  533. 時変トラフィック変動予測情報を用いた動的光パス経路設定法の効果

    小原圭太, 長谷川浩, 佐藤健一

    電子情報通信情報学会2009年総合大会     page: B-7-33   2009.3

     More details

    Language:Japanese  

  534. Cost Evaluation of Hierarchical Optical Path Networks Applying Waveband Add/Drop Ratio Constraint to Each Waveband,

    Le Hai Chau, Hiroshi Hasegawa, Ken-ichi Sato

    IEICE General Conference     page: B-12-1   2009.3

     More details

    Language:English  

  535. 全波長群パスに対するadd/drop 率を制約可能な多階層光パスクロスコネクトノード構成及び光スイッチ規模の評価

    平光亮介, 石井紀代, 長谷川浩, 佐藤健一

    電子情報通信情報学会2009年総合大会     page: B-12-2   2009.3

     More details

    Language:Japanese  

  536. マルチドメイン型フォトニックネットワークにおけるドメイン・リンク重み付けに基づく効率的な経路決定法

    島田康平, 荒木壮一郎, 長谷川浩, 佐藤健一

    電子情報通信情報学会2009年総合大会     page: B-7-82   2009.3

     More details

    Language:Japanese  

  537. 波長群パスを導入した多階層型セグメント化ネットワーク

    小川貴弘, 山田祥之, 長谷川浩, 佐藤健一

    電子情報通信情報学会2009年総合大会     page: B-12-3   2009.3

     More details

    Language:Japanese  

  538. 動的パスレイヤネットワーク制御におけるパス粒度の検討

    伊藤弘行, 長谷川浩, 佐藤健一

    電子情報通信情報学会2009年総合大会     page: B-7-80   2009.3

     More details

    Language:Japanese  

  539. 高信頼化多階層光パスネットワークにおけるロワーオーダ光パス切替方式のコスト評価

    山田祥之, 長谷川浩, 佐藤健一

    電子情報通信情報学会2009年総合大会     page: B-12-4   2009.3

     More details

    Language:Japanese  

  540. Hierarchical Optical Path Network Design Considering Waveband Add/Drop Ratio Restriction and Network Cost Analysis on Different Network Parameters

    H-C. Le, H. Hasegawa, and K. Sato

    IEICE Technical Report   ( OCS2008-109 ) page: 13-18   2009.2

     More details

    Language:English  

  541. New Dynamic Network Design and Provisioning Algorithms for Broadband Connection Services Considering Fairness Reviewed

    M. Nakagawa, H. Hasegawa, K. Sato, R. Sugiyama, T. Takeda, E. Oki, and K. Shiomoto

    Proc. of the 13th Conference on Optical Network Design and Modelling, ONDM 2009     page: Paper #1569164809   2009.2

     More details

    Language:English  

  542. *Analysis and development of fixed and variable waveband MUX/DEMUX utilizing AWG routing functions Reviewed

    S. Kakehashi, H. Hasegawa, K. Sato, O. Moriwaki, and S. Kamei

    IEEE Journal of Lightwave Technology   Vol. 27 ( 1 ) page: 30-40   2009.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  543. *Optical networking technologies that will create future bandwidth abundant networks Invited Reviewed

    K. Sato and H. Hasegawa

    IEEE/OSA Journal of Optical Communications and Networking   Vol. 1 ( 2 ) page: A81-A93   2009.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  544. Hierarchical Optical Path Network Design Algorithm Considering Waveband Protection Reviewed

    Y. Yamada, H. Hasegawa, and K. Sato

    IEEE/OSA Journal of Lightwave Technology   Vol. 27 ( 24 ) page: 5736-5748   2009

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  545. Optical cross-connect switch architectures for hierarchical optical path networks Reviewed

    S. Kakehashi, H. Hasegawa, K. Sato, O. Moriwaki, and S. Kamei

    IEICE Trans. Commun.   Vol. E91-B ( 10 ) page: 3174-3184   2008.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  546. Evaluation of network parameter dependencies of hierarchical optical path network cost considering waveband protection Reviewed

    Y. Yamada, H. Hasegawa and K. Sato

    Proc. of COIN 2008     page: CD-ROM   2008.10

     More details

    Language:English  

  547. Performance evaluation of dynamic network design for provisioning of broadband connection services Reviewed

    M. Nakagawa, H. Hasegawa and K. Sato

    Proc. of COIN 2008     page: CD-ROM   2008.10

     More details

    Language:English  

  548. Hierarchical optical path network design algorithm considering waveband add/drop ratio constraint Reviewed

    L. H. Chau, H. Hasegawa and K. Sato

    Proc. of COIN 2008     page: CD-ROM   2008.10

     More details

    Language:English  

  549. Network segmentation and design algorithm for large-scale optical path networks based on traffic distribution information Reviewed

    T. Yamamoto, H. Hasegawa, and K. Sato

    Proc. of ECOC 2008     page: We.2.B.6   2008.9

     More details

    Language:English  

  550. 再帰的需要探索および既設パス再最適化による共有型予備経路フォトニックネットワーク設計法

    秋井,長谷川,佐藤

    電子情報通信学会2008年ソサイエティ大会予稿集     page: B-7-65   2008.9

     More details

    Language:Japanese  

  551. 観測トラフィック量および一般化重力モデルに基づく時変トラフィック交流マトリクス推定法

    平野,長谷川,佐藤

    電子情報通信学会2008年ソサイエティ大会予稿集     page: B-7-29   2008.9

     More details

    Language:Japanese  

  552. Selection of Waveband Add/Drop Ratio Bound for Hierarchical Optical Path Network Design

    Le Hai Chau,H. Hasegawa, K. Sato

    Proc. of IEICE Society Conference 2008     page: B-12-4   2008.9

     More details

    Language:English  

  553. 大規模多階層光パスネットワーク設計およびGMPLS制御統合システムの実現

    岡田,長谷川,佐藤

    電子情報通信学会2008年ソサイエティ大会予稿集     page: B-7-66   2008.9

     More details

    Language:Japanese  

  554. ネットワーク規模及び波長群容量に対する高信頼化多階層光パスネットワークのコスト解析

    山田,長谷川,佐藤

    電子情報通信学会2008年ソサイエティ大会予稿集     page: B-12-3   2008.9

     More details

    Language:Japanese  

  555. *Optical Multicast Tree Construction Algorithm Considering SNR Constraint and 3R Regeneration Reviewed

    Y. Morita, H. Hasegawa, K. Sato, Y. Sone, K. Yamada, M. Jinno

    Proc. of ECOC 2008     page: We.3.A.4   2008.9

     More details

    Language:English  

  556. Monolithically Integrated Waveband Selective Switch Using Cyclic AWGs Reviewed

    K. Ishii, H. Hasegawa, K. Sato Kamei, H. Takahashi, and M. Okuno

    Proc. of ECOC 2008     page: Mo.4.C.5   2008.9

     More details

    Language:English  

  557. *An efficient hierarchical optical path network design algorithm based on traffic demand expression in a Cartesian produce space Reviewed

    I. Yagyuu, H. Hasegawa, and K. Sato

    IEEE Journal of Selected Areas in Communications (J-SAC), Supplement on Optical Communications and Networking (OCN)   Vol. 26 ( 6 ) page: 22-31   2008.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  558. Hierarchical Optical Path Cross-Connect Node Architecture Using WSS/WBSS Reviewed

    S. Mitsui, H. Hasegawa and K. Sato

    Proc. of Photonics Switching 2008     page: S-04-1   2008.8

     More details

    Language:English  

  559. 連接光リングネットワークにおける最適波長割当とノードスイッチ規模削減法

    石井、長谷川、佐藤

    電子情報通信学会フォトニックネットワーク研究会技術研究報告     page: 13-18   2008.6

     More details

    Language:Japanese  

  560. Quasi-Dynamic Network Design Considering Different Service Holding Times Reviewed

    K. Kanie, H.Hasegawa, and K. Sato

    IEEE J-SAC   Vol. 26 ( 3 ) page: 47-53   2008.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  561. SNR制約下における光パスマルチキャストツリー構築法

    森田、長谷川、佐藤、曽根

    電子情報通信学会2008年総合大会予稿集     page: B-7-72   2008.3

     More details

    Language:Japanese  

  562. 多階層光パスネットワーク設計法の進展

    山田、長谷川、佐藤

    電子情報通信学会 フォトニックネットワーク研究会学生ワークショップ     page: 13-15   2008.3

     More details

    Language:Japanese  

  563. Hierarchical Optical Path Network Design Considering Waveband Protection

    Y. Yamada, H. Hasegawa, and K. Sato

    IEICE Technical Report, Photonic Network   Vol. 107 ( 544 ) page: 99-104   2008.3

     More details

    Language:English  

  564. WSS/WBSSを用いた多階層光パスクロスコネクトノード構成と光スイッチ規模の評価

    三井、長谷川、佐藤

    電子情報通信学会2008年総合大会予稿集     page: B-12-22   2008.3

     More details

    Language:Japanese  

  565. AWGの折り返し導波路構成を用いた分散配置型波長群合分波器

    梯,長谷川,佐藤,森脇

    電子情報通信学会2008年総合大会予稿集     page: B-12-1   2008.3

     More details

    Language:Japanese  

  566. Hierarchical optical path network design algorithm considering restriction on waveband add/drop ratio

    Le Hai Chau,H. Hasegawa, K. Sato

    Proc. of IEICE General Conference 2008     page: B-12-21   2008.3

     More details

    Language:English  

  567. トラフィックの変動予測情報を利用したフォトニックネットワークの動的経路制御法

    小原、長谷川、佐藤

    電子情報通信学会2008年総合大会予稿集     page: B-7-4   2008.3

     More details

    Language:Japanese  

  568. 集中制御型OBSネットワークにおける光バッファ配置決定法及び配置の評価

    吉川、長谷川、佐藤

    電子情報通信学会2008年総合大会予稿集     page: B-7-74   2008.3

     More details

    Language:Japanese  

  569. Cost Comparisons for Hierarchical and Single-layer Optical Path Networks Considering Waveband and Wavelength Path Protection Reviewed

    Y. Yamada, H. Hasegawa, and K. Sato

    Proc. of OFC/NFOEC2008     page: OThI4   2008.2

     More details

    Language:English  

  570. *An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions Reviewed

    H. Hasegawa, T.Ohtsuka, I. Yamada, and K. Sakaniwa

    IEICE Trans. Fundamentals   Vol. E91-A ( 2 ) page: 673-681   2008.2

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  571. Interleaved Waveband MUX/DEMUX Developed on Single Arrayed-Waveguide Grating Reviewed

    S. Kakehashi, H. Hasegawa, K. Sato, and O. Moriwaki

    Proc. of OFC/NFOEC2008     page: OThE1   2008.2

     More details

    Language:English  

  572. An RWA Algorithm for OBS Networks based on Iterative Local Optimization of Total Blocking Probability Reviewed

    T. Yoshikawa, H.Nagashima, H. Hasegawa, and K. Sato

    Proc. of APOC2007     page: CD-ROM   2007.11

     More details

    Language:English  

  573. Suppression of Boundary Effect and Introduction of Scale Correlation for Wavelet based Traffic Prediction Reviewed

    N. Matsusue, H. Hasegawa, and K. Sato

    Proc. of MMSP2007     page: CD-ROM   2007.10

     More details

    Language:English  

  574. Formulation of waveguide connection for waveband MUX/DEMUX using concatenated Arrayed-Waveguide Gratings Reviewed

    S. Kakehashi, H. Hasegawa, K. Sato and O. Moriwaki

    IEICE Trans. Commun. Letter   Vol. E90-B ( 10 ) page: 2950–2952   2007.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  575. Simple Node Architectures for Concatenation of ROADM Rings Reviewed

    K.Ishi, H. Hasegawa, and K. Sato

    Proc. of ECOC2007     page: CD-ROM   2007.9

     More details

    Language:English  

  576. Waveband Selective Switch Using Concatenated AWGs Reviewed

    S.Kakehashi, H. Hasegawa, K. Sato, and O.Moriwaki

    Proc. of ECOC2007     page: CD-ROM   2007.9

     More details

    Language:English  

  577. 一般化重力モデルと低次周期多項式近似に基づく時変トラフィック行列推定

    平野 真彦, 長谷川 浩, 佐藤 健一

    電子情報通信学会ソサイエティ大会予稿集     page: CD-ROM   2007.9

     More details

    Language:Japanese  

  578. Hierarchical Optical Path Network Design Considering Waveband Protection Reviewed

    Y. Yamada, H. Hasegawa, and K. Sato

    Proc. of ECOC2007     page: CD-ROM   2007.9

     More details

    Language:English  

  579. ブロッキングの公平性を考慮した総ブロッキング率の繰返し最適化に基づく集中制御型OBS 波長経路割当法

    吉川 友啓, 長谷川 浩, 佐藤 健一

    電子情報通信学会ソサイエティ大会予稿集     page: CD-ROM   2007.9

     More details

    Language:Japanese  

  580. セグメント間トラフィック最小化基準に基づく大規模フォトニックネットワークのセグメント分割法

    山本 卓也, 長谷川 浩, 佐藤 健一

    電子情報通信学会ソサイエティ大会予稿集     page: CD-ROM   2007.9

     More details

    Language:Japanese  

  581. An RWA Algrithm for Centralized Control of OBS Network based on Minimization of Expected Total Blocking Probability

    T. Yoshikawa, H. Hasegawa, and K. Sato

    IEICE Tech. Report, PN     page: unknown   2007.8

     More details

    Language:English  

  582. Simple Node Architectures for Connection of Two ROADM Rings Using Hierarchical Optical Path Routing Reviewed

    K.Ishi, H. Hasegawa, and K. Sato

    Proc. of Photonics in Switching 2007     page: CD-ROM   2007.8

     More details

    Language:English  

  583. Performance of Waveband MUX/DMUX Using Concatenated AWGS Reviewed

    S. Kakehashi, H. Hasegawa, K. Sato, O. Moriwaki, S. Kamei, Y. Jinnouchi, and M. Okuno

    IEEE Photonics Technology Letters   Vol. 19 ( 16 ) page: 1197-1199   2007.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  584. Prospects and Challenges of Multi-Layer Optical Networks Reviewed

    K.Sato and H.Hasegawa

    IEICE Trans. Commun.   Vol. E90-B ( 8 ) page: 1890-1902   2007.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  585. Fast Generation of Orthogonal Periodic Polynomials and Its Application to Smooth Approximation of the Internet Traffic Reviewed

    H. Hasegawa, N. Matsusue, and K. Sato

    Proc. OECC/IOOC2007     page: 13A2-3   2007.7

     More details

    Authorship:Lead author   Language:English  

  586. Wavelength Assignment for Concatenated ROADM Ring Networks and Simple Node Architecture

    K.Ishii, H.Hasegawa, and K.Sato

    IEICE Tech. Report, PN   Vol. 107 ( 90 ) page: 13-17   2007.6

     More details

    Language:English  

  587. 多階層光パスネットワークの有効性と波長群容量の評価

    柳生 功, 長谷川 浩, 佐藤 健一

    電子情報通信学会2007年全国大会予稿集     page: CD-ROM   2007.3

     More details

    Language:Japanese  

  588. Quasi-Dynamic Network Design Considering Different Service Holding/Contract Terms Reviewed

    K. Kanie, H. Hasegawa, and K. Sato

    Proc. on OFC2007     page: JThA65   2007.3

     More details

    Language:English  

  589. Waveband MUX/DEMUX Using Concatenated AWGs -Formulation of Waveguide Connection and Fabrication Reviewed

    S. Kakehashi, H. Hasegawa, K. Sato, O. Moriwaki, S. Kamei, Y. Jinnouchi, and M. Okuno

    Proc. on OFC2007     page: JThA94   2007.3

     More details

    Language:English  

  590. 多階層光パスを用いたOADMリング間接続ノードアーキテクチャ

    石井 紀代, 長谷川 浩, 佐藤 健一

    電子情報通信学会2007年全国大会予稿集     page: CD-ROM   2007.3

     More details

    Language:Japanese  

  591. 複数サービストラフィックに対する準動的フォトニックネットワーク設計

    蟹江 剛一, 長谷川 浩, 佐藤 健一

    電子情報通信学会2007年全国大会予稿集     page: CD-ROM   2007.3

     More details

    Language:Japanese  

  592. 分割・階層化に基づく大規模フォトニックネットワーク設計法

    杉村 浩史, 長谷川 浩, 佐藤 健一

    電子情報通信学会2007年全国大会予稿集     page: CD-ROM   2007.3

     More details

    Language:Japanese  

  593. Lanczos の原理に基づく周期直交多項式生成とトラフィック特性近似への応用

    松末 直也, 長谷川 浩, 佐藤 健一

    電子情報通信学会2007年全国大会予稿集     page: CD-ROM   2007.3

     More details

    Language:Japanese  

  594. アレイ導波路回折格子を用いた波長群合分波器

    梯 昌二, 長谷川 浩, 佐藤 健一

    電子情報通信学会2007年全国大会予稿集     page: CD-ROM   2007.3

     More details

    Language:Japanese  

  595. Optical switch architecture for hierarchical optical path networks

    S. Kakehashi, H. Hasegawa, and K. Sato

    IEICE Technical Report, PN   Vol. 106 ( 419 ) page: 9-12   2006.12

     More details

    Language:English  

  596. A Design of orthonormal Wavelet for analysis of stationary long memory process

    H. Hasegawa, and K. Sato

    IEICE Technical Report, PN   Vol. 106 ( 419 ) page: 27-30   2006.12

     More details

    Authorship:Lead author   Language:English  

  597. An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions Reviewed

    Proc of 2006 IEEE International Workshop on Multimedia Signal Processing (MMSP 2006)     page: CD-ROM   2006.10

     More details

    Authorship:Lead author   Language:English  

  598. Studies of node architectures for hierarchical optical path networks Reviewed

    S. Kakehashi, H. Hasegawa, and K. Sato

    Proc. of ITCom2006     page: CD-ROM   2006.10

     More details

    Language:English  

  599. Wavelet 分解レベル間相関を用いたトラフィック予測法

    松末 直也, 長谷川 浩, 佐藤 健一

    電子情報通信学会ソサイエティ大会予稿集     page: unknown   2006.9

     More details

    Language:Japanese  

  600. ルータコストの非線形性を考慮した大規模フォトニックネットワーク設計法

    杉村 浩史, 長谷川 浩, 佐藤 健一

    電子情報通信学会ソサイエティ大会予稿集     page: unknown   2006.9

     More details

    Language:Japanese  

  601. An Efficient Hierarchical Optical Path Network Design Algorithm based on a Traffic Demand Expression in a Cartesian Product Space Reviewed

    I. Yagyu, H. Hasegawa, and K. Sato

    Proc. of ECOC2006     page: CD-ROM   2006.9

     More details

    Language:English  

  602. Waveband MUX/DEMUX Using Concatenated Arrayed-Waveguide Gratings Reviewed

    S. Kakehashi, H. Hasegawa, K. Sato, and O. Moriwaki

    Proc. of ECOC2006     page: CD-ROM   2006.9

     More details

    Language:English  

  603. マルチレイヤフォトニックネットワークにおける準動的設計

    蟹江 剛一, 長谷川 浩, 佐藤 健一

    電子情報通信学会フォトニックネットワーク研究会     page: unknown   2006.8

     More details

    Language:Japanese  

  604. 多階層光パスネットワークにおける光パス需要密度の直積空間上表現と波長群パスの逐次設定法

    柳生 功, 長谷川 浩, 佐藤 健一

    電子情報通信学会フォトニックネットワーク研究会     page: unknown   2006.8

     More details

    Language:Japanese  

  605. 平均ブロッキング率の局所最適解探索に基づくOBSネットワーク設計法

    長嶋 秀孝, 長谷川 浩, 佐藤 健一

    電子情報通信学会フォトニックネットワーク研究会     page: unknown   2006.8

     More details

    Language:Japanese  

  606. `A Trous 変換と適応並列劣勾配射影に基づくIP トラフィック予測

    渡部 克弥, 松末 直也, 長谷川 浩, 佐藤 健一

    電子情報通信学会フォトニックネットワーク研究会     page: unknown   2006.5

     More details

    Language:Japanese  

  607. 大規模フォトニックネットワーク階層化アーキテクチャの検討

    池田 充, 長谷川 浩, 佐藤 健一

    電子情報通信学会2006年全国大会予稿集     page: CD-ROM   2006.3

     More details

    Language:Japanese  

  608. 大規模フォトニックネットワーク設計法

    杉村浩史, 長谷川浩, 佐藤健一

    電子情報通信学会2006年全国大会予稿集     page: CD-ROM   2006.3

     More details

    Language:Japanese  

  609. サービスの契約/解約を考慮した準動的フォトニックネットワーク設計におけるネットワークコストの長期的変動

    蟹江 剛一, 長谷川 浩, 佐藤 健一

    電子情報通信学会2006年全国大会予稿集     page: CD-ROM   2006.3

     More details

    Language:Japanese  

  610. 階層化光パス網におけるノード構成の研究

    梯 昌二, 長谷川 浩, 佐藤 健一

    電子情報通信学会2006年全国大会予稿集     page: CD-ROM   2006.3

     More details

    Language:Japanese  

  611. An Improvement of Convergence Speed and Image Qualityof an Adaptive Super-Resolution

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium 2005     page: CD-ROM   2005.11

     More details

    Language:English  

  612. An Improvement of Convergence Speed and Image Qualityof an Adaptive Super-Resolution

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium 2005     page: CD-ROM   2005.11

     More details

    Language:English  

  613. An Edge-Preserving Super-Precision from Multiple Quantized Images

    H. Hasegawa, T. Ohtsuka, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium 2005     page: CD-ROM   2005.11

     More details

    Language:English  

  614. An Edge-Preserving Super-Precision from Multiple Quantized Images

    H. Hasegawa, T. Ohtsuka, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium 2005     page: CD-ROM   2005.11

     More details

    Language:English  

  615. Segmented Network Design and Performance Evaluation forLarge Scale Transparent OXC-Based Networks Reviewed

    Koshi Sugimura, Hiroshi Hasegawa, Ken-ichi Sato

    Proc. of OpticsEast 2005     page: CD-ROM   2005.10

     More details

    Language:English  

  616. Segmented Network Design and Performance Evaluation for Large Scale Transparent OXC-Based Networks Reviewed

    K. Sugimura, H. Hasegawa, and K. Sato

    Proc. of ITCom2005     page: CD-ROM   2005.10

     More details

    Language:English  

  617. マルチレイヤフォトニックネットワークにおける準動的なトラフィック変動に対するネットワーク増設法

    蟹江 剛一,長谷川 浩,佐藤 健一

    電子情報通信学会2005年ソサイエティ大会予稿集     page: B12-14   2005.9

     More details

    Language:Japanese  

  618. An Iterative MPEG Super-Resolution with an Outer Approximation of Framewise Quantization Constraint Reviewed

    H. Hasegawa, T.Ono, I. Yamada, and K. Sakaniwa

    IEICE Trans. Fundamentals   Vol. E88-A ( 9 ) page: 2427-2435   2005.9

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  619. セグメント化された大規模ネットワークにおけるリソース共有プロテクション方式の研究

    杉村 浩史,長谷川 浩,佐藤 健一

    電子情報通信学会2005年ソサイエティ大会予稿集     page: CD-ROM   2005.9

     More details

    Language:Japanese  

  620. Multi-layered Photonic Network Design ConsideringIncremental Traffic Growth and Different Service Contract Terms Invited Reviewed

    Koichi Kanie, Hiroshi Hasegawa, Ken-ichi Sato

    Proc. of 31st European Conference and Exhibition on Optical Communication (ECOC2005)     page: CD-ROM   2005.9

     More details

    Language:English  

  621. マルチレイヤフォトニックネットワークにおける準動的なトラフィック変動に対するネットワーク増設法

    蟹江 剛一,長谷川 浩,佐藤 健一

    電子情報通信学会2005年ソサイエティ大会予稿集     page: CD-ROM   2005.9

     More details

    Language:Japanese  

  622. Multi-layered Photonic Network Design ConsideringIncremental Traffic Growth and Different Service Contract Terms Invited Reviewed

    Koichi Kanie, Hiroshi Hasegawa, Ken-ichi Sato

    Proc. of 31st European Conference and Exhibition on Optical Communication (ECOC2005)     page: CD-ROM   2005.9

     More details

    Language:English  

  623. セグメント化された大規模ネットワークにおけるリソース共有プロテクション方式の研究

    杉村 浩史,長谷川 浩,佐藤 健一

    電子情報通信学会2005年ソサイエティ大会予稿集     page: B12-15   2005.9

     More details

    Language:Japanese  

  624. Multi-layered Photonic Network Design Considering Incremental Traffic Growth and Different Service Contract Terms Invited Reviewed

    K. Kanie, H. Hasegawa, and K. Sato

    Proc. of ECOC2005     page: CD-ROM   2005.9

     More details

    Language:English  

  625. A COLOR SUPER-RESOLUTION WITH MULTIPLE NONSMOOTH CONSTRAINTS BY HYBRID STEEPEST DESCENT METHOD Reviewed

    R. Sasahara, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of the The International Conference on Image Processing (ICIP2005)     page: MonPmPo2-4   2005.8

     More details

    Authorship:Lead author   Language:English  

  626. A COLOR SUPER-RESOLUTION WITH MULTIPLE NONSMOOTH CONSTRAINTS BY HYBRID STEEPEST DESCENT METHOD Reviewed

    R. Sasahara, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of the The International Conference on Image Processing (ICIP2005)     page: CD-ROM   2005.8

     More details

    Language:English  

  627. A Multidimensional Associative Memory Neural Network to Recall Nearest Pattern from Input Reviewed

    H. Sun, H. Hasegawa, I. Yamada

    Proc. of the IEEE International Workshop on Nonlinear Signal and Image Processing (NSIP 2005)     page: CD-ROM   2005.5

     More details

    Language:English  

  628. An Adaptive Super-Resolution of Videos with Noise Information on Camera Systems Reviewed

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2005)     page: CD-ROM   2005.3

     More details

    Language:English  

  629. 光パス需要密度の直積空間上表現と空間内探索に基づく多階層光パス網設計法

    柳生 功, 長谷川 浩, 佐藤 健一

    電子情報通信学会2006年全国大会予稿集     page: CD-ROM   2005.3

     More details

    Language:Japanese  

  630. 制約付きアフィン射影法に基づくIP トラフィック予測法

    渡部 克弥, 松末 直也, 長谷川 浩, 佐藤 健一

    電子情報通信学会2006年全国大会予稿集     page: CD-ROM   2005.3

     More details

    Language:Japanese  

  631. An Adaptive Super-Resolution of Videos with Noise Information on Camera Systems Reviewed

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2005)     2005

     More details

    Language:English  

  632. A Multidimensional Associative Memory Neural Network to Recall Nearest Pattern from Input Reviewed

    H. Sun, H. Hasegawa, I. Yamada

    Proc. of the IEEE International Workshop on Nonlinear Signal and Image Processing (NSIP 2005)     2005

     More details

    Language:English  

  633. Color Super-Resolution subject to Bounded Total Variation

    R. Sasahara, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium     page: CD-ROM   2004.11

     More details

    Language:English  

  634. An Adaptive Super-Resolution for Noisy and Blurred Image Sequences

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium     page: CD-ROM   2004.10

     More details

    Language:English  

  635. An Edge-Preserving Inverse Halftoning by Successive Outer Approximation Techniques

    T. Okada, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium     page: CD-ROM   2004.10

     More details

    Language:English  

  636. Discrete Time-Frequency Projection Filtering based on an Alias-Free Discrete Time-Frequency Analysis Reviewed

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    IEICE Trans. Fundamentals   Vol. E87-A ( 6 ) page: 1537-1545   2004

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  637. A Super-Resolution Image Recovery of Movies with an Outer Approximation of Framewise MPEG Quantization Constraint Reviewed

    H. Hasegawa, T. Ono, I. Yamada, and K. Sakaniwa

    Proc. of the 2004 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2004)     page: II-537   2004

     More details

    Authorship:Lead author   Language:English  

  638. A Successive Least-Squares Super-Resolution of MPEG Video Sequences

    H. Hasegawa, T. Ono, I. Yamada, and K. Sakaniwa

    Proc. of IEICE General Conference     page: A-4-8   2004

     More details

    Authorship:Lead author   Language:English  

  639. A Super-Resolution of Movies Based on Adaptive Parallel Subgradient Projection Technique

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of IEICE General Conference     page: CD-ROM   2004

     More details

    Language:English  

  640. A Multidimensional Associative Memory Neural Network to Recall Nearest Pattern from Input

    H. Sun, H. Hasegawa, and I. Yamada

    Proc. of SIP Symposium     page: CD-ROM   2004

     More details

    Language:English  

  641. Color Super-Resolution subject to Bounded Total Variation

    R. Sasahara, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium     2004

     More details

    Language:English  

  642. An Adaptive Super-Resolution for Noisy and Blurred Image Sequences

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium     2004

     More details

    Language:English  

  643. An Edge-Preserving Inverse Halftoning by Successive Outer Approximation Techniques

    T. Okada, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of SIP Symposium     2004

     More details

    Language:English  

  644. A Multidimensional Associative Memory Neural Network to Recall Nearest Pattern from Input

    H. Sun, H. Hasegawa, and I. Yamada

    Proc. of SIP Symposium     2004

     More details

    Language:English  

  645. A Super-Resolution of Movies Based on Adaptive Parallel Subgradient Projection Technique

    T. Ono, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of IEICE General Conference     page: A-4-19   2004

     More details

    Authorship:Lead author   Language:English  

  646. A truncated polynomial interpolation theorem and its application to polynomially WLS design of IIR filters Reviewed

    H. Hasegawa, M. Nakagawa, I. Yamada, and K. Sakaniwa

    IEICE Trans. Fundamentals   Vol. E86-A ( 7 ) page: 1742-1748   2003

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  647. Time-Frequency Projection Filtering based on Alias-free Discrete Time-Frequency Analysis

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    Technical Report of IEICE     page: DSP2002-166   2003

     More details

    Authorship:Lead author   Language:English  

  648. An Adaptive Super Resolution Reconstruction of MPEG Compressed Video Sequences

    H. Hasegawa, T. Ono, I. Yamada, and K. Sakaniwa

    Proc. of 26th Symposium on Information Theory and Its Applications     page: 241-244   2003

     More details

    Authorship:Lead author   Language:English  

  649. A Reconstruction of High-Resolution Images from MPEG Compressed Video Sequences

    H. Hasegawa, T. Ono, I. Yamada, and K. Sakaniwa

    Proc. of 18th Digital Signal Processing Symposium     2003

     More details

    Authorship:Lead author   Language:English  

  650. A Reconstruction of High-Resolution Images from MPEG Compressed Video Sequences

    H. Hasegawa, T. Ono, I. Yamada, and K. Sakaniwa

    Proc. of 18th Digital Signal Processing Symposium     2003

     More details

    Authorship:Lead author   Language:English  

  651. A higher order generalization of an alias-free discrete time-frequency analysis Reviewed

    H. Hasegawa, Y. Miki, I. Yamada, and K. Sakaniwa

    IEICE Trans. Fundamentals   Vol. E85-A ( 8 ) page: 1774-1780   2002

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  652. A truncated polynomial interpolation theorem and its application to the WLS design of IIR filters

    H. Hasegawa, M. Nakagawa, I. Yamada, and K. Sakaniwa

    Proc. of the IEEE International Conference on International Symposium on Circuits and Systems (ISCAS2002)   Vol. V   page: 705-708   2002

     More details

    Authorship:Lead author   Language:English  

  653. A higher order generalization of an alias-free discrete time-frequency analysis Reviewed

    H. Hasegawa, Y. Miki, I. Yamada, and K. Sakaniwa

    Proc. of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2002)   Vol. II   page: 1453-1456   2002

     More details

    Authorship:Lead author   Language:English  

  654. An Estimation of Multicomponent Polynomial Phase Signals

    Y. Miki, H. Hasegawa, I. Yamada and K. Sakaniwa

    Proc. of 17th Digital Signal Processing Symposium     page: A4-5   2002

     More details

    Authorship:Lead author   Language:English  

  655. Analysis of multicomponent polynomial phase signals using unwrapped phase and geometry on triangle

    Y. Miki, H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of 25th Symposium on Information Theory and Its Applications     page: 75-78   2002

     More details

    Language:English  

  656. Time-Frequency Projection Filtering based on Alias-free Discrete Time-Frequency Analysis

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of 25th Symposium on Information Theory and Its Applications     page: 71-74   2002

     More details

    Authorship:Lead author   Language:English  

  657. Generalized discrete higher order moment spectra and their kernel design

    H. Hasegawa, Y. Miki, I. Yamada, and K. Sakaniwa

    Technical Report of IEICE     page: DSP2000-188   2001

     More details

    Authorship:Lead author   Language:English  

  658. A truncated polynomial interpolation theorem and its application to the WLS design of IIR filters

    H. Hasegawa, M. Nakagawa, I. Yamada, and K. Sakaniwa

    Proc. of 24th Symposium on Information Theory and Its Applications     page: 537-540   2001

     More details

    Authorship:Lead author   Language:English  

  659. A generalization of the Walsh's theorem for weighted least-squares rational approximation

    H. Hasegawa, M. Nakagawa, I. Yamada, and K. Sakaniwa

    Proc. of 16th Digital Signal Processing Symposium     page: 373-378   2001

     More details

    Authorship:Lead author   Language:English  

  660. A higher order generalization of an alias-free discrete time-frequency analysis

    H. Hasegawa, Y. Miki, I. Yamada, and K. Sakaniwa

    Proc. of 24th Symposium on Information Theory and Its Applications     page: 815-818   2001

     More details

    Authorship:Lead author   Language:English  

  661. A simple least-squares design of M-D IIR filters with fixed separable denominator based on multivariate division algorithm Reviewed

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    Multidimensional Systems and Signal Processing   Vol. 11 ( 4 ) page: 339-358   2000

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  662. A design of near perfect reconstruction qmf banks based on Hybrid Steepest Descent Method Reviewed

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    IEICE Trans. Fundamentals   Vol. E83-A ( 8 ) page: 1523-1530   2000

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  663. Kernel design of generalized class of discrete-time discrete-frequency time-frequency distributions based on Hybrid steepest descent method

    H. Hasegawa, Y. Miki, I. Yamada, and K. Sakaniwa

    Technical Report of IEICE     page: DSP2000-127   2000

     More details

    Authorship:Lead author   Language:English  

  664. Kernel synthesis for generalized time-frequency distributions based on Hybrid steepest descent method

    H. Hasegawa, Y. Miki, I. Yamada, and K. Sakaniwa

    Proc. of 15th Digital Signal Processing Symposium     page: 103-108   2000

     More details

    Authorship:Lead author   Language:English  

  665. Least-squares design of M-D IIR filters with fixed separable denominator based on multivariate division algorithm Reviewed

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of the European Conference on Circuit Theory and Design (ECCTD'99)     page: 1139-1142   1999

     More details

    Authorship:Lead author   Language:English  

  666. Algebraic multidimensional phase unwrapping and zero distribution of complex polynomials Reviewed

    I. Yamada, K. Kurosawa, H. Hasegawa, and K. Sakaniwa

    IEEE Trans. on Signal Processing   Vol. 46 ( 6 ) page: 1639-1664   1998

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  667. Constrained least squares design of M-D FIR filter based on convex projection techniques Reviewed

    I. Yamada, H. Hasegawa, and K. Sakaniwa

    Proc. of Taiwan-Japan Joint Workshop on the Latest Development of Telecommunication Research     page: 17-21   1998

     More details

    Language:English  

  668. A note on constrained least squares design of M-D FIR filter based on convex projection techniques Reviewed

    I. Yamada, H. Hasegawa, and K. Sakaniwa

    IEICE Trans. Fundamentals   Vol. E81-A ( 8 ) page: 1586-1591   1998

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  669. Algebraic least squares approxiamtion of multivariate polynomial by rational function with separable denominator

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    Proc. of 13th Digital Signal Processing Symposium     page: 399-403   1998

     More details

    Authorship:Lead author   Language:English  

  670. Simple derivation of stability radius of multivariate systems Reviewed

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    Electronics Letters   Vol. 33 ( 11 ) page: 937-938   1997

     More details

    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  671. Characterization of multivariate stable polynomial by algebraic multidimensional unwrapped phase

    I. Yamada, K. Kurosawa, H. Hasegawa, and K. Sakaniwa

    Proc. of 12th Digital Signal Processing Symposium     page: 573-578   1997

     More details

    Language:English  

  672. A note on constrained least squares design of M-D FIR filter based on convex projection techniques

    I. Yamada, H. Hasegawa, and K. Sakaniwa

    Technical Report of IEICE     page: DSP97-120   1997

     More details

    Language:English  

  673. Schur多項式から非Schur多項式集合への距離

    長谷川 浩, 山田 功, 坂庭 好一

    電子情報通信学会技術研究報告     page: DSP96-36   1996

     More details

    Authorship:Lead author   Language:Japanese  

  674. 多次元離散システムの安定余裕に関する一検討

    長谷川 浩, 山田 功, 坂庭 好一

    第19回情報理論とその応用シンポジウム(SITA96)予稿集     page: 713-716   1996

     More details

    Authorship:Lead author   Language:Japanese  

  675. A simple derivation of stability radius for multidimensional complex discrete systems

    H. Hasegawa, I. Yamada, and K. Sakaniwa

    Technical Report of IEICE     page: DSP96-107   1996

     More details

    Authorship:Lead author   Language:English  

  676. 実Schur多項式から実非Schur多項式集合への距離

    長谷川 浩, 山田 功, 坂庭 好一

    電子情報通信学会技術研究報告     1996

     More details

    Authorship:Lead author   Language:Japanese  

  677. A multidimensional phase unwrapping algorithm and zero distribution of complex polynomials Reviewed

    I. Yamada, K. Kurosawa, H. Hasegawa, and K. Sakaniwa

    Proc. of European Conference on Circuit Theory and Design (ECCTD'95)     page: 491-495   1995

     More details

    Language:English  

  678. フェージングの一推定法について

    坂庭 好一,長谷川 浩

    電子情報通信学会全国大会     page: B-369   1995

     More details

    Language:Japanese  

  679. 多次元連続位相の導出アルゴリズムと多項式の零点分布決定への応用

    山田 功, 黒澤 馨, 長谷川 浩, 坂庭 好一

    電子情報通信学会技術研究報告     page: DSP95-1   1995

     More details

    Language:Japanese  

  680. 代数的連続位相導出アルゴリズムを用いた多次元安定性判別の一手法

    山田 功, 長谷川 浩, 坂庭 好一

    第18回情報理論とその応用シンポジウム(SITA95)予稿集     page: 101-104   1995

     More details

    Language:Japanese  

▼display all

Books 2

  1. 情報ネットワーク科学入門

    村田正幸・成瀬 誠 編( Role: Joint author)

    コロナ社  2015.9  ( ISBN:978-4-339-02801-0

     More details

    Language:Japanese

  2. 新インターユニバーシティ 情報ネットワーク

    佐藤健一, 川島信, 奥田隆史, 長谷川明生, 長谷川浩( Role: Joint author)

    オーム社  2011.12  ( ISBN:9784274211201

     More details

    Language:Japanese

Presentations 15

  1. 超大容量光ファイバネットワークアーキテクチャ ~展望と課題~ Invited

    長谷川 浩

    第4回フォトニックデバイス・応用技術研究会  2021.1.20  フォトニックデバイス・応用技術研究会

     More details

    Event date: 2021.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン   Country:Japan  

  2. 光通信ネットワーク技術の進展

    長谷川 浩, 佐藤 健一

    平成18年度 日本光学会名古屋講演会 

     More details

    Event date: 2007.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  3. An Improvement of Convergence Speed and Image Qualityof an Adaptive Super-Resolution

    Proc. of SIP Symposium 2005 

     More details

    Event date: 2005.11

    Language:English   Presentation type:Oral presentation (general)  

  4. An Edge-Preserving Super-Precision from Multiple Quantized Images

    Proc. of SIP Symposium 2005 

     More details

    Event date: 2005.11

    Language:English   Presentation type:Oral presentation (general)  

  5. マルチレイヤフォトニックネットワークにおける準動的なトラフィック変動に対するネットワーク増設法

    蟹江 剛一,長谷川 浩,佐藤 健一

    電子情報通信学会2005年ソサイエティ大会予稿集 

     More details

    Event date: 2005.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  6. Multi-layered Photonic Network Design ConsideringIncremental Traffic Growth and Different Service Contract Terms International conference

    Proc. of 31st European Conference and Exhibition on Optical Communication (ECOC2005) 

     More details

    Event date: 2005.9

    Language:English   Presentation type:Oral presentation (invited, special)  

  7. セグメント化された大規模ネットワークにおけるリソース共有プロテクション方式の研究

    杉村 浩史,長谷川 浩,佐藤 健一

    電子情報通信学会2005年ソサイエティ大会予稿集 

     More details

    Event date: 2005.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  8. A COLOR SUPER-RESOLUTION WITH MULTIPLE NONSMOOTH CONSTRAINTS BY HYBRID STEEPEST DESCENT METHOD International conference

    Proc. of the The International Conference on Image Processing (ICIP2005) 

     More details

    Event date: 2005.8

    Language:English   Presentation type:Oral presentation (general)  

  9. An Adaptive Super-Resolution of Videos with Noise Information on Camera Systems International conference

    Proc. of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2005) 

     More details

    Event date: 2005

    Language:English   Presentation type:Oral presentation (general)  

  10. A Multidimensional Associative Memory Neural Network to Recall Nearest Pattern from Input International conference

    Proc. of the IEEE International Workshop on Nonlinear Signal and Image Processing (NSIP 2005) 

     More details

    Event date: 2005

    Language:English   Presentation type:Oral presentation (general)  

  11. A Super-Resolution of Movies Based on Adaptive Parallel Subgradient Projection Technique

    Proc. of IEICE General Conference 

     More details

    Event date: 2004

    Language:English   Presentation type:Oral presentation (general)  

  12. Color Super-Resolution subject to Bounded Total Variation

    Proc. of SIP Symposium 

     More details

    Event date: 2004

    Language:English   Presentation type:Oral presentation (general)  

  13. An Adaptive Super-Resolution for Noisy and Blurred Image Sequences

    Proc. of SIP Symposium 

     More details

    Event date: 2004

    Language:English   Presentation type:Oral presentation (general)  

  14. An Edge-Preserving Inverse Halftoning by Successive Outer Approximation Techniques

    Proc. of SIP Symposium 

     More details

    Event date: 2004

    Language:English   Presentation type:Oral presentation (general)  

  15. A Multidimensional Associative Memory Neural Network to Recall Nearest Pattern from Input

    Proc. of SIP Symposium 

     More details

    Event date: 2004

    Language:English   Presentation type:Oral presentation (general)  

▼display all

Research Project for Joint Research, Competitive Funding, etc. 8

  1. 超高信頼性を達成する次世代インテリジェント光ネットワークアーキテクチャ

    2018.10 - 2021.9

    委託研究 

      More details

    Grant type:Competitive

  2. Cost-effective and scalable architecture for multi-granular optical networks

    2014.3 - 2017.2

      More details

    Grant type:Competitive

  3. 「エラスティック光通信ネットワーク構成技術の研究開発」 課題A エラスティック超高信頼光NW設計技術 A-3 冗長系を考慮したエラスティックNW高信頼化技術の研究

    2013.8 - 2017.3

    委託研究 

      More details

    Grant type:Competitive

  4. 多階層化と信号劣化を考慮したルーティングによる次世代超大容量光パスネットワーク

    2012.4 - 2014.3

    平成24年度二国間交流事業共同研究・セミナー 

      More details

    Grant type:Competitive

  5. メトロエリアネットワーク向け光ルーティングデバイスおよびネットワーキング技術の研究開発

    2012.4 - 2013.3

    出資金による受託研究 

  6. フレキシブル・グリッド型光ノードシステムの研究開発

    2011.9 - 2014.3

    ICTグリーンイノベーション推進事業(PREDICT) 

      More details

    Grant type:Competitive

  7. 階層化光パスネットワークにおける高効率なパスルーティングの研究

    2011.4 - 2014.3

    出資金による受託研究 

  8. 超高精細映像配信用光マルチキャストネットワークの動的制御法の開発

    2010.4 - 2011.3

▼display all

KAKENHI (Grants-in-Aid for Scientific Research) 7

  1. メトロネットワーク群における適応的全光経路制御と統合制御手法の研究開発

    Grant number:20H02150  2020.4 - 2023.3

    独立行政法人日本学術振興会  科学研究費助成事業  基盤研究(B)

    長谷川 浩

      More details

    Authorship:Principal investigator 

    Grant amount:\17810000 ( Direct Cost: \13700000 、 Indirect Cost:\4110000 )

    通信量に応じ全光経路制御範囲を再構成可能な、超大容量・低遅延・低消費電力なメトロエリアネットワークの実現を目指し、ネットワーク相互接続ノードのアーキテクチャ及びネットワーク群の統括制御アルゴリズムを開発する。開発予定の接続ノードは、少数の光フィルタおよび光スイッチとで構成され、光ファイバ内の光信号を信号変換無しに直接経路制御する他、その際の信号劣化が小さいことを特長とする。また、提案接続装置により相互接続された複数の小規模ネットワークを、論理的に単一の統合ネットワークとして運用する枠組みと方法論とを提案する。
    廉価な光スイッチによりルーティングされるネットワーク上で、広い周波数帯域を占有する次世代光パスを通信需要変動に応じ動的に運用した場合の特性評価を実施した。比較的狭い周波数帯域の占有に留まる従来型光パスに比べ次世代光パスは動的運用時に特性が劣化することは明らかであるが、特に光スイッチによりルーティングされるネットワーク上での劣化が大きいことが明らかとなった、光スイッチ設定を整数線形計画法で最適化した場合でも劣化幅は50%前後に及ぶ。一方、光スイッチを用いたルーティングは、現状の波長選択スイッチを用いたルーティングと比べ損失や劣化が少なく、また装置コストに優れる優位性が有り、このトレードオフを評価すること、また光スイッチによるルーティングの性能劣化を抑制するための手法の評価が重要といえる。今回の結果は、性能劣化のベースラインを示すもので有り、ネットワーク内に劣化補償の追加的機能が必要であることを示したものと言える。
    また、ネットワーク中で、2つの部分ネットワークが疎に接続している場合、その接続部分をグラフのカットセットおよびそれを横切る通信需要から特定する手法を編み出した。接続部分の容量がネットワーク全体の容量のボトルネックと言えることから、ボトルネック部分の容量を効果的に増加させる必要があり、具体的な手法については令和3年度において検討を進める。
    その他、超大容量ネットワーク高信頼化の検討などを進めた。
    これらの成果については令和2年度末の国内会議で発表し、また国際会議へ投稿済みである。
    当初より目指していた部分ネットワークへの分割とそれに基づくネットワーク設計・制御については着実に進展しており、既に基礎的な検討が進み、かつネットワーク容量増大の方策が生み出されている。一方、次世代光パスの動的運用や光スイッチを用いたルーティングなど、新たな内容も追加的に検討し成果を得ていることから、概ね順調に進展していると判断できる。
    廉価な光スイッチを導入しルーティングを行うネットワークは、最終的な研究目標を達成する上でのネットワークアーキテクチャとして有力な候補となり得るが、令和2年度の検討によりその潜在的な問題点が明らかとなったことから、その問題点を克服する検討を推し進める。具体的にはネットワークの残余容量を推定する手法及び残余容量をネットワーク再構成により最大化する手法の開発である。前者については強化学習を導入した評価法、後者については選択肢の効率的な探索を実現するための発見的手法の導入が有効と見込んでおり、実際のネットワークを模擬した数値シミュレーションによる詳細な評価を経て最終的な方式を確定させる。

  2. Development of new-generation data-centric optical networks

    Grant number:26220905  2014.5 - 2019.3

    Sato Ken-ichi

      More details

    Authorship:Coinvestigator(s) 

    Making the best use of cutting-edge technologies such as; next-generation spatial division multiplexing on multiple-core fibers, scalable node architectures, advanced optical transmission that can maximally utilize frequency resources of fibers, and network architectures that enable transparent and seamless operations of national-wide and metro-area networks where transmission impairment is substantially reduced, we have achieved substantial network capacity enhancement, high energy efficiency, and excellent frequency utilization in photonic networks where routing operations are effectively conducted in the optical domain. Metrics in each technology, i.e. spatial multiplexing degree, maximum number of nodes that can be traversed by an optical path, maximum fiber degree of node, and frequency utilization efficiency has been substantially expanded so that they exceed the original target values. The product of the metrics yields 2,400 times of the present product value.

  3. データセントリック新世代光ネットワーキングの研究

    2014.4 - 2019.3

    科学研究費補助金  基盤研究(S)

    佐藤建一

      More details

    Authorship:Coinvestigator(s) 

  4. 疎粒度光ルーティングによる複数ネットワークの有機的結合に関する研究

    2014.4 - 2017.3

    科学研究費補助金  基盤研究(B)

    長谷川浩

      More details

    Authorship:Principal investigator 

  5. パス階層化と仮想トンネル制御によるアダプティブ光パスネットワーク

    2012.4 - 2013.3

    科学研究費補助金  若手研究(B)

      More details

    Authorship:Principal investigator 

  6. 高機能光集積化ルーティングシステムの研究

    2011.4 - 2014.3

    科学研究費補助金  基盤研究(A)

    佐藤 健一

      More details

    Authorship:Coinvestigator(s) 

  7. ディジタル防犯カメラ映像からの高精細画像復元に関する研究

    2005.4 - 2007.3

    科学研究費補助金  若手研究(B),課題番号:17700175

    長谷川浩

      More details

    Authorship:Principal investigator 

▼display all

Industrial property rights 18

  1. 光パスクロスコネクト装置

    佐藤健一, 長谷川浩

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特許出願2011-142078  Date applied:2011.10

    Announcement no:特許公開2013-9264 

    Patent/Registration no:C20110118JP#P01  Date registered:2013.5 

    Country of applicant:Domestic  

  2. 光パスクロスコネクト装置

    佐藤健一, 長谷川浩

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特許出願2011-221418  Date applied:2011.10

    Announcement no:特許公開2013-85011 

    Patent/Registration no:未入力  Date registered:2013.5 

    Country of applicant:Domestic  

  3. 光パスクロスコネクト装置

    渡辺 俊夫 外3名

     More details

    Applicant:日本電信電話株式会社 外1名

    Application no:特許出願2011-142078  Date applied:2011.6

    Announcement no:特許公開2013-9264 

    Patent/Registration no:C20110117JP#P01  Date registered:2013.1 

    Country of applicant:Domestic  

  4. パス収容制御方法

    神野 正彦 外5名

     More details

    Applicant:日本電信電話株式会社 外1名

    Application no:特許出願2011-142078  Date applied:2011.6

    Announcement no:特許公開2013-9264 

    Patent/Registration no:K20100319  Date registered:2013.1 

    Country of applicant:Domestic  

  5. 光ノード用光回路

    渡辺 俊夫 外3名

     More details

    Applicant:日本電信電話株式会社 外1名

    Application no:特許出願2011-134422  Date applied:2011.6

    Announcement no:特許公開2013-5230 

    Patent/Registration no:C20110006JP#P01  Date registered:2013.1 

    Country of applicant:Domestic  

  6. 帯域可変通信システムにおけるトラヒック収容設計方法

    田中 貴章 外4名

     More details

    Applicant:日本電信電話株式会社 外1名

    Application no:特許出願2010-214037  Date applied:2010.9

    Announcement no:特許公開2012-70256 

    Patent/Registration no:K20100091  Date registered:2012.4 

    Country of applicant:Domestic  

  7. 光パスネットワークの階層型光パスクロスコネクト装置

    佐藤 健一,長谷川 浩,山田 祥之

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2010-210148  Date applied:2010.9

    Announcement no:特開2012-065292 

    Patent/Registration no:K20100112  Date registered:2012.3 

    Country of applicant:Domestic  

  8. 光パスネットワークの光終端装置

    佐藤 健一 外2名

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2010-204978  Date applied:2010.9

    Announcement no:特開2012-60622 

    Patent/Registration no:K20100120  Date registered:2012.3 

    Country of applicant:Domestic  

  9. 光パスネットワークの階層型光パスクロスコネクト装置

    佐藤 健一,長谷川 浩,平光 亮介,石井 紀代

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2010-184477  Date applied:2010.8

    Announcement no:特開2012-044485 

    Patent/Registration no:K20090287  Date registered:2012.3 

    Country of applicant:Domestic  

  10. 光通信ネットワーク用ノード装置のルーティング方法および光通信ネットワーク用ノード装置

    佐藤 健一,長谷川 浩,大野 高明,石井 紀代

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2010-056473  Date applied:2010.3

    Announcement no:特開2011-193145 

    Patent/Registration no:特開2011-193145  Date registered:2011.9 

    Country of applicant:Domestic  

  11. 光リング間接続用光ノード装置

    佐藤 健一 外3名

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特許出願2010-56473  Date applied:2010.3

    Announcement no:特許公開2011-193145 

    Patent/Registration no:K20090254  Date registered:2011.9 

    Country of applicant:Domestic  

  12. 階層化光パスクロスコネクト装置

    佐藤 健一,長谷川 浩,三井 真一

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2009-211113  Date applied:2009.9

    Announcement no:特開2011-061637 

    Patent/Registration no:K20090096  Date registered:2011.3 

    Country of applicant:Domestic  

  13. 光パスネットワークの階層化光パスクロスコネクト装置

    佐藤 健一,長谷川 浩,平光 亮介,石井 紀代

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2010-184477  Date applied:2009.3

    Announcement no:特開2012-044485 

    Patent/Registration no:K20080265  Date registered:2010.9 

    Country of applicant:Domestic  

  14. 光パスネットワークの光パスクロスコネクト装置および階層化光パスクロスコネクト装置

    佐藤 健一,長谷川 浩,平光 亮介,石井 紀代

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2009-063675  Date applied:2009.3

    Announcement no:特開2010-219828 

    Patent/Registration no:K2008266  Date registered:2010.9 

    Country of applicant:Domestic  

  15. 光通信ノード装置

    曽根 由明 外6名

     More details

    Applicant:日本電信電話株式会社 外1名

    Application no:特許出願2008-241471  Date applied:2008.9

    Announcement no:特許公開2010-74657 

    Patent/Registration no:K20080079  Date registered:2010.4 

    Country of applicant:Domestic  

  16. 光波長群クロスコネクト装置

    亀井 新 外3名

     More details

    Applicant:日本電信電話株式会社 外1名

    Application no:特許出願2008-92267  Date applied:2008.3

    Announcement no:特許公開2009-246768 

    Patent/Registration no:K20070232  Date registered:2009.10 

    Country of applicant:Domestic  

  17. 光通信ネットワーク用ノード装置のルーティング方法および光通信ネットワーク用ノード装置

    佐藤 健一,長谷川 浩,石井 紀代

     More details

    Applicant:国立大学法人名古屋大学

    Application no:特願2009-528043  Date applied:2008.3

    Announcement no:WO2009/022478 

    Patent/Registration no:WO2009022478  Date registered:2009.2 

    Country of applicant:Domestic  

  18. 波長群光分波器、波長群光合波器、および波長群光選択スイッチ

    佐藤健一, 長谷川浩他(計7名)

     More details

    Application no:PCT/JP2007/058447  Date applied:2007.4

    Announcement no:WO2007/123157 

    Country of applicant:Domestic  

▼display all

 

Teaching Experience (Off-campus) 2

  1. 情報工学実験第4(ディジタル信号処理)

    2004.4 - 2005.3 東京工業大学)

  2. 情報工学実験第4(ディジタル信号処理)

    2003.4 - 2004.3 東京工業大学)

 

Social Contribution 4

  1. 電子情報通信学会 小中高生向け理科教育講座

    2010.8

     More details

    小学生向け見学会 NTT洞道見学

  2. 第三回おもしろ科学教室

    2011.1

  3. 第二回おもしろ科学教室

    2010.1

  4. 第一回おもしろ科学教室

    2009.1

Academic Activities 4

  1. Associate Editor International contribution

    Role(s):Review, evaluation, Peer review

    IEEE/OSA Journal of Optical Communications and Networking  2019.6

  2. Member of OECC2022 General Affairs Committee International contribution

    Role(s):Planning, management, etc.

    OECC2022  2020.12 - 2022.8

     More details

    Type:Academic society, research group, etc. 

  3. TPC Category Chair of PSC2022 International contribution

    Role(s):Review, evaluation, Peer review

    PSC2022  2020.12 - 2022.8

     More details

    Type:Academic society, research group, etc. 

  4. TPC Member of ONDM2021 International contribution

    Role(s):Peer review

    ONDM2021  2020.10 - 2021.7

     More details

    Type:Academic society, research group, etc.