Papers - OKADA, Hiraku
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Transmission Control Considering Different Available Channels for CRDSA/IRSA in Satellite IoT Systems Reviewed International journal
K. Kumazawa, H. Okada, M. Matsui, K. Tategami, D. Goto, K.Itokawa, F. Yamashita, M. Katayama
IEEE Access Vol. 11 page： 135377 - 135384 2023.11
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Flight Model Using Voronoi Tessellation for a Delay-Tolerant Wireless Relay Network Using Drones Reviewed International journal
H. Asano, H. Okada, C. Ben Naila, M. Katayama
IEEE Access Vol. 9 page： 13064 - 13075 2021.1
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An Overview of Aerial Wireless Relay Networks for Emergency Communications during Large-Scale Disasters Invited Reviewed
H. Okada
IEICE Transactions on Communications Vol. E103-B ( 12 ) page： 1376 - 1384 2020.12
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Preventing Degradation of the Quality of Visual Information in Digital Signage and Image-Sensor-Based Visible Light Communication Systems Reviewed
H. Okada, S. Sato, T. Wada, K. Kobayashi, M. Katayama
IEEE Photonics Journal Vol. 10 ( 3 ) 2018.4
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Performance Analysis of LDPC coded Outdoor Long-Distance Imaging MIMO System Reviewed International journal
D. Ishikawa, C. Ben Naila, H. Okada, M. Katayama
International Conference on Computing, Networking and Communications (ICNC) Vol. 1139 ( 1143 ) 2024.2
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An experimental evaluation of air-to-air MIMO transmission in wireless LAN relay systems using drones Reviewed International journal
S. Kawabe, H Okada, C. Ben Naila, M Katayama
International Conference on Information Networking (ICOIN) Vol. 563 ( 567 ) 2024.1
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Visible Light Communication Systems Using a High-speed Display and Rolling-shutter Camera Reviewed International journal
H. Okada, T. Hayashi, K. Kobayashi, T. Wada, C. Ben Naila, M. Katayama
Asia-Pacific Conference on Communications (APCC) Vol. 244 ( 249 ) 2023.11
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Communication-Aware Flight Algorithms for UAV-Based Delay-Tolerant Networks Reviewed International journal
H. Asano, H. Okada, C. Ben Naila, M. Katayama
IEICE Transactions on Communications Vol. E106-B ( 11 ) page： 1122 - 1132 2023.11
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Interpolation of Missing Data for Wireless Operation of Industrial Robot Reviewed International journal
Y. Takagi, C. Ben Naila, H. Okada, M. Katayama
Annual Conference of the IEEE Industrial Electronics Society (IECON) 2023.10
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Robust Video Transmission for Robot Teleoperation over Networks with Packet Loss Reviewed International journal
F. Sasaki, C. Ben Naila, H. Okada, M. Katayama
Annual Conferene of the IEEE Industrial Electronics Society (IECON) 2023.10
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Design and Analysis of A Multi-Rate Multiple-Access Differential Chaos Shift Keying System Reviewed International coauthorship International journal
M. Miao, C. Ben Naila, H. Okada, M. Katayama
IEICE Transactions on Communications Vol. E106-B ( 10 ) page： 873 - 880 2023.10
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Experimental Evaluation of 920 MHz Band Air-to-Ground Radio Wave Propagation in Mountainous Areas Reviewed International journal
T. Okuda, H. Okada, C. Ben Naila, M. Katayama
IEICE Transactions on Communications Vol. E106-B ( 10 ) page： 949 - 958 2023.10
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High Speed Optical Wireless Uplink using Multiuser MIMO with Angle Diversity Reviewed International journal
X. Zhu, C. Ben Naila, H. Okada, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication (PIMRC) 2023.9
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High-Speed Image Sensor Communication Using High Dynamic Range Combining Reviewed International journal
R. Huang, T. Yamazato, M. Kinoshita, H. Okada, S. Arai, K. Kamakura, T. Yendo, T. Fujii
IEICE Communications Express Vol. 12 ( 9 ) page： 493 - 498 2023.9
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Performance of Intelligent Reflecting Surface Based-FSO Link under Strong Turbulence and Spatial Jitter Reviewed International journal
T. Ishida, C. Ben Naila, H. Okada, M. Katayama
IEEE Symposium on Computers and Communications (ISCC) Workshop on Optical Wireless Communications 2023.7
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Simultaneous Visible Light Communication and Ranging Using High-Speed Stereo Cameras Based on Bicubic Interpolation Considering Multi-Level Pulse-Width Modulation Reviewed International journal
R. Huang, M. Kinoshita, T. Yamazato, H. Okada, K. Kamakura, S. Arai, T. Yendo, T. Fujii
IEICE Transactions on Fundamentals Vol. E106-A ( 7 ) page： 990 - 997 2023.7
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Valueput Improvement of a Sensor Network with ACK-based Protocols Reviewed International journal
R. Tanahashi, C. Ben Naila, H. Okada, M. Katayama
IEICE Communications Express Vol. 12 ( 7 ) page： 356 - 361 2023.7
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Slotted ALOHA Based Transmission Control Considering Available Channel Bias in Satellite IoT Systems Reviewed
H. Okada, K. Kumazawa, M. Matsui, K. Tategami, D. Goto, K. Itokawa, F. Yamashita, M. Katayama
IEICE Transactions on Communications Vol. J106-B ( 7 ) page： 413 - 423 2023.7
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Performance Analysis of Intelligent Reflecting Surface Assisted-FSO System over Turbulent Channels with Pointing Errors Reviewed International journal
T. Ishida, C. Ben Naila, H. Okada, M. Katayama
IEEE Vehicular Technology Conference (VTC) 2023.6
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Mitigation of Vessel Motion Effects for MIMO Underwater Optical Wireless Communication System using Spatial Coding Reviewed International journal
H. Ando, C. Ben Naila, H. Okada, M. Katayama
IEEE International Conference on Communications (ICC) page： 961 - 965 2023.5
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A GIS-based Network Configuration Method for Inspections of Power Transmission Facilities Using UAVs Reviewed
T. Okuda, H. Okada, H. Tanaka, T. Fujiwara, C. Ben Naila, M. Katayama
IEICE Transactions on Communications Vol. J106-B ( 3 ) page： 237 - 241 2023.3
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A Proposal of Hidden Screen-Camera Communication Systems Using Adversarial Examples on CNN Depth Estimation Model Reviewed International journal
C. Lee, H. Okada, T. Wada, C. Ben Naila, M. Katayama
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP) page： 356 - 359 2023.3
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Communication-aware flight algorithm for UAVs in delay-tolerant aerial networks Reviewed International journal
H. Asano, H. Okada, C. Ben Naila, M. Katayama
IEEE Consumer Communications and Networking Conference (CCNC) page： 287 - 292 2023.1
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Influence of Walsh-Hadamard Code Sequency in Visible Light Communication Using an Event Camera Reviewed International journal
D. Ehara, Z. Tang, M. Kinoshita, T. Yamazato, H. Okada, K. Kamakura, S. Arai, T. Yendo, T. Fujii
International Conference on Emerging Technologies for Communications (ICETC) 2022.12
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Voronoi-based UAV flight method for non-uniform user distribution in delay-tolerant aerial networks Reviewed International journal
H. Asano, H. Okada, C. Ben Naila, M. Katayama
IEICE Transactions on Communications Vol. E105-B ( 11 ) page： 1414 - 1423 2022.11
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Evaluation of Conventional and Imaging MIMO OWC Systems using Linear Array Design Reviewed International journal
C. Ben Naila, T. Nakamura, H. Okada, M. Katayama
IEEE Photonics Journal Vol. 14 ( 5 ) 2022.10
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Spatial Diversity for Mitigating Near-far Problem in Wireless Optical CDMA Systems Reviewed International journal
T. Kasukabe, C. Ben Naila, H. Okada, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication (PIMRC) 2022.9
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Design and Evaluation of Optimum Receiver for Turbulent Underwater Optical Wireless Channel Reviewed International journal
K. Yamada, C. Ben Naila, H. Okada, M. Katayama
IEEE Vehicular Technology Conference (VTC) 2022.6
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Propagation Characteristics of 920 MHz band LPWA for Inspections of Power Transmission Lines Using UAVs Reviewed
T. Okuda, H. Okada, H. Tanaka, T. Fujiwara, N. Matsui, C. Ben Naila, M.katayama
IEEE Consumer Communications and Networking Conference (CCNC) page： 713 - 714 2022.1
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A UAV flight method for non-uniform user distributions in aerial wireless relay networks Reviewed
H. Asano, H. Okada, C. Ben Naila, M. Katayama
IEEE Consumer Communications and Networking Conference (CCNC) page： 169 - 174 2022.1
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A Cancellation of Inter-LEDs Interference Using Deconvolution In Visible Light Communication between LED Traffic Light and High-speed Image Sensor Reviewed
T. Yamamoto, T. Yamazato, H. Okada, M. Kinoshita, K. Kamakura, S. Arai, T. Yendo, T. Fujii
IEICE Transactions on Communications Vol. J104-B ( 11 ) page： 938 - 948 2021.11
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Comparison of Distance Performances of Modulation Schemes in Intelligent Transport System Image Sensor Communication Reviewed
T. Yamamoto, T. Yamazato, H, Okada, M. Kinoshita, K. Kamakura, S. Arai, T. Yendo, T. Fujii
IEICE Communications Express Vol. 10 ( 8 ) page： 498 - 504 2021.8
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Vehicle Distance Measurement based on Visible Light Communication Using Stereo Cameras Reviewed
R. Huang, T. Yamazato, M. Kinoshita, H. Okada, K. Kamakura, S. Arai, T. Yendo, T. Fujii
IEEE Intelligent Vehicles Symposium 2021.7
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Experimental Evaluation of a Wireless LAN Relay System Using Unmanned Aerial Vehicles Reviewed
H. Tanaka, N. Matsui, Y. Watanabe, H. Okada, M. Katayama
IEEE Vehicular Technology Conference (VTC) 2021.4
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Experimental evaluation of indoor optical wireless MIMO systems with square and linear array constellations Reviewed International journal
T. Nakamura, C. Ben Naila, K. Kobayashi, H. Okada, M. Katayama
IEEE Photonics Journal Vol. 13 ( 1 ) 2021.2
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Experimental Evaluation of an Indoor Long Distance High Speed Imaging MIMO System Reviewed
A. Iwasa, C. Ben Naila, K. Kobayashi, H. Okada, M. Katayama
IEEE Global Communications Conference (GLOBECOM) 2020.12
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Performance Evaluation of Range Estimation for Image Sensor Communication Using Phase-only Correlation Reviewed
R. Huang, M. Kinoshita, T. Yamazato, H. Okada, S. Arai, T. Yendo, T. Fujii
IEEE GLOBECOM Workshop on Optical Wireless Communications (OWC) 2020.12
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A Comparison of Distance Performances of Modulation Schemes in an ITS Image Sensor Communication Reviewed
T. Yamamoto, T. Yamazato, H, Okada, M. Kinoshita, K. Kamakura, S. Arai, T. Yendo, T. Fujii
International Conference on Emerging Technologies for Communications page： - 2020.12
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Rebounding Flight with Rebounding Rate in a Wireless Relay Network Using Drones Reviewed
H. Asano, H. Okada, C. Ben Naila, M. Katayama
IEICE Transactions on Communications Vol. J103-B ( 12 ) page： 679-683 2020.12
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A Study on Visible Light Communications Using a High-Speed Display and a Rolling-Shutter Camera Reviewed
T. Hayashi, H. Okada, K. Kobayashi, T. Wada, M. Katayama
International Symposium on Nonlinear Theory and its Application (NOLTA) page： 316 - 319 2020.11
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Experimental Performance Evaluation of Image Sensor Based Visible Light Communication Using a DMD Projector in a Driving Condition Reviewed
T. Arisue, M. Kinoshita, T. Yamazato, H. Okada, K. Kamakura, S. Arai, T. Yendo, T. Fujii
IEICE Transactions on Fundamentals Vol. J103-A ( 11 ) page： 283-286 2020.11
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Flight Models in Wireless Relay Networks Using Drones for Large-Scale Disasters Reviewed
H. Yanai, H. Okada, K. Kobayashi, M. Katayama
IEICE Transactions on Communications Vol. J103-B ( 2 ) page： 57-66 2020.2
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A Controller Design Method Considering the Influence of Packet Loss as a Control-dependent Disturbance Reviewed
T. Ogura, K. Kobayashi, H. Okada, M. Katayama
IEEJ Transaction on Electronics, Information and Systems Vol. 140 ( 2 ) page： 212-218 2020.2
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Performance Improvement of V2I Uplink Transmission on Far Vehicles Using Frequency Scheduling-Based Cooperative V2V Relay Transmission Reviewed
H. Ishikawa, E. Okamoto, H. Okada, S. Makido
IEEE Consumer Communications and Networking Conference (CCNC) 2020.1
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BER Measurement for Transmission Pattern Design of ITS Image Sensor Communication Using DMD Projector Reviewed
T. Arisue, T. Yamazato, H, Okada, M. Kinoshita, S. Arai, T. Yendo, K. Kamakura, T. Fujii
IEEE Consumer Communications and Networking Conference (CCNC) 2020.1
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Performance Evaluation of Precoded Pulse Width Modulation for Visible Light Communicatino Using Image Sensor Reviewed
S. Kamegawa, M. Kinoshita, T. Yamazato, H. Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEICE Transactions on Communications Vol. J102-B ( 12 ) page： 962-965 2019.12
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Guaranteed Time Slot Allocation for IEEE 802.15.4-Based Wireless Feedback Control Systems Reviewed
K. Kobayashi, H. Okada, M. Katayama
IEEE Access Vol. 7 ( 1 ) page： 161211-161219 2019.11
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Synchronous CDMA for a PLC-based multi-machine control system Reviewed
M. Hasegawa, K. Kobayashi, H. Okada, M. Katayama
Annual Conference of the IEEE Industrial Electronics Society (IECON) 2019.10
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Flight Models in Wireless Relay Networks Using Drones for Large-Scale Disasters Reviewed
H. Yanai, H. Okada, K. Kobayashi, M. Katayama
IEICE Transactions on Communications 2019.9
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Inclination of Flying Drones in Aerial Wireless Relay Networks Reviewed
H. Okada, J. Suzuki, H. Yanai, K. Kobayashi, M. Katayama
IEEE VTC2019-Fall Workshops on Swarm Intelligence: Autonomous and Connected Unmanned Aircraft Systems 2019.9
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Performance Evaluation of Precoded Pulse Width Modulation for Visible Light Communicatino Using Image Sensor Reviewed
S. Kamegawa, M. Kinoshita, T. Yamazato, H. Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEICE Transactions on Communications 2019.9
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Cross-layer combination of predictive control and error correction coding for wireless feedback control Reviewed
K. Kasai, K. Kobayashi, H. Okada, M. Katayama
IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium (APWCS) 2019.8
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Data signal modulation scheme based on perceptually uniform color space for image sensor-based visible light communication Reviewed
T. Sasaki, K. Kobayashi, H. Okada, M. Katayama
IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium (APWCS) 2019.8
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Overlaying a motion video with data information for digital signage and image-sensor-based visible light communication systems Reviewed
H. Okada, S. Yoshida, T. Wada, K. Kobayashi, M. Katayama
IEICE Communications Express Vol. 8 ( 8 ) page： 323-328 2019.8
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Performance of synchronous CDMA for the PLC-based remote multi-machine control Reviewed
M. Hasegawa, K. Kobayashi, H. Okada, M. Katayama
IEICE Communications Express Vol. 8 ( 10 ) page： 410-415 2019.7
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Adaptive transmission probability for CSMA/CA based consensus control of multi-agent systems Reviewed
K. Kobayashi, S. Noro, H. Okada, M. Katayama
IEICE Communications Express Vol. 8 ( 9 ) page： 393-398 2019.7
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Optical Wireless CDMA Receiver with Hard Limiters and Successive Interference Cancellers Reviewed
S. Ito, K. Kobayashi, H. Okada, M. Katayama
IEEE International Conference on Communications (ICC) Workshop on Optical Wireless Communications 2019.5
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Influence of packet loss on wireless feedback control systems as a disturbance Reviewed
T. Ogura, K. Kobayashi, H. Okada, M. Katayama
IEICE Communications Express Vol. 8 ( 7 ) page： 257-262 2019.4
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Measurements of Multiple Access Performance of G3-PLC in a Large-scale Building Reviewed
K. Ikeda, K. Kobayashi, H. Okada, M. Katayama
IEEE International Symposium on Power Line Communications and Its Applications (ISPLC) page： - 2019.4
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An LED Transmitter Detection using Linear SVM and CNN for ITS Image Sensor Communication Reviewed
M. Hori, M. Kinoshita, T. Yamazato, H. Okada, T. Fujii, K. Kamakura, T. Yendo, S. Arai
International Conference and Exhibition on Visible Light Communications (ICELVC) page： - 2019.3
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Experimental Evaluation of Visible Light Communication Performance Applying Pixel Selection / Maximal Ratio Combining Reception by High-speed Stereo Camera Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEICE Transactions on Communications Vol. J102-B ( 2 ) page： 90-97 2019.2
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Performance Analysis of Uplink V2I Cooperative Transmission Scheme in Practical Road Environments Reviewed
H. Ishikawa, E. Okamoto, S. Okamoto, H. Okada, S. Makido
International Conference on Information Networking (ICOIN) 2019.1
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A Comparison of Reception Methods for Visible Light Communication Using High-speed Stereo Cameras Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEEE Global Communications Conference (GLOBECOM) 2018.12
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Performance Evaluation of Precoded Pulse Width Modulation for Image Sensor Communication Reviewed
S. Kamegawa, M. Kinoshita, T. Yamazato, H. Okada, T. Fujii, K. Kamakura, T. Yendo, S. Arai
IEEE GLOBECOM Workshop on Optical Wireless Communications 2018.12
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A Proposal of Information Embedding Scheme Based on Discrete Cosine Transform in Parallel Transmission Visible Light Communications Reviewed
R. Mushu, T. Wada, K. Mukumoto, H. Okada
IEEE Global Conference on Consumer Electronics (GCCE) page： - 2018.10
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Performance Evaluation of Digital Signage and Image-Sensor-Based Visible Light Communication Systems Using Motion Video as Visual Information Reviewed
S. Yoshida, H. Okada, T. Wada, K. Kobayashi, M. Katayama
Workshop on Smart City based on Ambient Intelligence (SCAI 2018) page： - 2018.8
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Flight Schemes Considering Breaks for Wireless Relay Networks Using Drones during Large-Scale Disasters Reviewed
H. Yanai, H. Okada, K. Kobayashi, M. Katayama
International Workshop on Dependable Wireless Communications (DEWCOM) page： - 2018.8
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Performance Enhancement for Image Sensor Communication in an Intelligent Transport System Using a High-speed Stereo Camera Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
International Conference and Exhibition on Visible Light Communications (ICEVLC) page： - 2018.3
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Combination of a Wireless Sensor Network and Drone Using Infrared Thermometers for Smart Agriculture Reviewed
T. Moribe, H. Okada, K. Kobayashi, M. Katayama
IEEE Consumer Communications and Networking Conference page： 632-633 2018.1
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Simplified Vehicle Vibration Modeling for Image Sensor Communication Reviewed
M. Kinoshita, T. Yamazato, H. Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences Vol. E101-A ( 1 ) page： 176-184 2018.1
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A Cross-layer Optimized Receiver Design for Wireless Feedback Control Systems Reviewed
K. Kobayashi, H. Okada, M. Katayama
IEEE Transactions on Communications Vol. 66 ( 1 ) page： 320-329 2018.1
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Performance Evaluation of Information Embedding Schemes Based on Wavelet Transform for Parallel Transmission Visible Light Communication Systems Reviewed
Y. Lin, T. Wada, K. Mukumoto, H. Okada
IEEE Global Conference on Consumer Electronics page： 390-391 2017.10
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Performance Improvement of Low-latency V2I Uplink Using Superposed Cooperative V2V Transmission Reviewed
E. Okamoto, H. Okada, Y. Ishi, S. Makido
IEEE Vehicular Technology Conference 2017.9
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A Cross-layer Design of Optimized Receiver for Wireless State Feedback Control Reviewed
K. Kobayashi, H. Okada, M. Katayama
IEEE International Workshop on Signal Processing Advances in Wireless Communications page： 750-754 2017.7
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Adaptive Channel Coding Scheme Based on Selection of Control Information for Wireless Feedback Control Reviewed
Y. Miwa, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. J100-A ( 7 ) page： 259-267 2017.7
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Modeling and Parameter Estimation of Vehicle Vibration Inducing Transmitter Displacement in ITS Image Sensor Communication Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEEE International Conference on Communications Workshop on Optical Wireless Communications page： 144-149 2017.5
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Selective Transmission of Control Information Based on Channel Periodicity in PLC-based Multiple-machine Control Reviewed
S. Sawada, K. Kobayashi, H. Okada, M. Katayama
IEEE International Symposium on Power Line Communications and Its Applications 2017.4
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Evaluation of Radio Propagation Characteristics in 920 MHz Band for Wireless Sensor Networks in a Farm Field Reviewed
T. moribe, H. Okada, K. Kobayashi, M. Katayama
Agricultural Information Research Vol. 26 ( 1 ) page： 1-10 2017.3
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A Study on Variable Length Channel Coding for State Feedback in Wireless Control Systems Reviewed
Y. Miwa, K. Kobayashi, H. Okada, M. Katayama
IEEE Wireless Communications and Networking Conference 2017.3
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A Study on Multiple Access Schemes for Wireless Control over the IEEE 802.15.4 Beacon-enabled Mode Reviewed
Y. Uematsu, K. Kobayashi, H. Okada, M. Katayama
IEEE Wireless Communications and Networking Conference 2017.3
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Link Quality Information Sharing by Compressed Sensing and Compressed Transmission for Arbitrary Topology Wireless Mesh Networks Reviewed
H. Okada, S. Suzaki, T. Kato, K. Kobayashi, M. Katayama
IEICE Transactions on Communications Vol. E100-B ( 3 ) page： 456-464 2017.3
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A Modulation Method to Detect Phase Shift from Asynchronous Camera Image for Visible Light Communication Reviewed
W. Kihara, T. Yendo, S. Arai, T. Yamazato, H. Okada, K. Kamakura
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP) page： 133-136 2017.3
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A Study on a Position Detection Method using the Hough Transform for Parallel Transmission Visible Light Communication Systems Reviewed
A. Tsubota, T. Wada, K. Mukumoto, H. Okada
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP) page： 125-128 2017.3
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Vehicle to Infrastructure Visible Light Communication using DCO-OFDM Reviewed
N. Kawagita, T. Yamazato, H. Okada, T. Fujii, S. Arai, T. Yendo, K.Kamakura
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP) page： 129-132 2017.3
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Evaluation of Time Asynchronous of Display-Camera Links for Visible Light Communications Reviewed
H. Ichikawa, S. Sato, H. Okada, T. Wada, K. Kobayashi, M. Katayama
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP) page： 121-124 2017.3
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H-infinity control design considering packet loss as a disturbance for networked control systems Reviewed
T. Ogura, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals, vol.E100-A, no.2, pp.353-360 Vol. E100-A ( 2 ) page： 353-360 2017.2
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A Visualization Method of Link Qualities and Their Correlations Using Self-Organizing Map for Wireless Mesh Networks Reviewed
Y. Minematsu, H. Okada, K. Kobayashi, M. Katayama
IEICE Transactions on Communications Vol. J100-B ( 2 ) page： 100-110 2017.2
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Position estimation of LED matrix in image sensor communication Reviewed
T. Asai, T. Yendo, S. Arai, T. Yamazato, H. Okada, T. Fujii, K. Kamakura
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA) page： 1-5 2016.12
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A study on H-infinity controller design considering the influence of packet loss as a disturbance Reviewed
T. Ogura, K. Kobayashi, H. Okada, M. Katayama
42th Annual Conference of the IEEE Industrial Electronics Society (IECON2016) page： - 2016.10
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A study on time division multiple access scheme based on predicted tracking error for wireless feedback control of multiple plants Reviewed
S. Kimura, K. Kobayashi, H. Okada, M. Katayama
42th Annual Conference of the IEEE Industrial Electronics Society (IECON2016) page： - 2016.10
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A study on a source coding scheme considering the importance of control data for wireless feedback control systems Reviewed
A. Nagata, K. Kobayashi, H. Okada, M. Katayama
42th Annual Conference of the IEEE Industrial Electronics Society (IECON2016) page： - 2016.10
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Channel Measurement of Infrastructure-to-Vehicle Image Sensor Communication Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
23rd World Congress on Intelligent Transport Systems page： AT-TP0403 2016.10
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A Study on Relay Node Positioning in Sensor Networks Using Street Space Reviewed
H. Imai, K. Mase, H. Okada, K. Nakano
IEICE Transactions on Communications, vol.J99-B, no.10, pp.871-880 Vol. J99-B ( 10 ) page： 871-880 2016.10
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Visible Light Communication Systems Using Blue Color Difference Modulation for Digital Signage Reviewed
S. Sato, H. Okada, K. Kobayashi, T. Yamazato, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 1242-1247 2016.9
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Measurement of Radio Propagation in 920 MHz Band for Wireless Sensor Networks in a Farm Field Reviewed
T. Moribe, H. Okada, K. Kobayashi, M. katayama
IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium page： 448-452 2016.8
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Error-Rate Performance of AsynchronousWireless Optical CDMA System Using a Hard Limiter for Noise Environment Reviewed
Yusuke Yamamoto, Kentaro Kobayashi, Hiraku Okada, Masaaki Katayama
Transactions of the Institute of Systems, Control and Information Engineers, vol.29, no.6, pp.242-249 Vol. 29 ( 6 ) page： 242-249 2016.6
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Improving Communication Rate of Road-to-Vehicle Visible Light Communication System Using High-Speed Camera and LED Traffic Light Reviewed
D. Iwase, M. Kasai, T. Yendo, S. Arai, H. Okada, K. Kamakura, T. Fujii
IEICE Transactions on Communications, vol.J99-B, no.2, pp.97-104 Vol. J99-B ( 2 ) page： 97-104 2016.2
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Experimental Evaluation of a Distributed Sensor Network Applying Source Node Grouping Reviewed
Y. Ishikawa, H. Okada, K. Naito, K. Kobayashi, M. Katayama
8th International Workshop on Autonomous Self-Organizing Networks (ASON) page： 283-286 2015.12
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Novel Demodulation Scheme Based on Blurred Images for Image-Sensor-Based Visible Light Communication Reviewed
Y. Ohira, S. Arai, T. Yendo, T. Yamazato, H. Okada, T. Fujii and K. Kamakura
IEEE GC 2015 Workshop on Optical Wireless Communication (OWC 2015) 2015.12
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I2V-VLC Vehicle Motion Modeling Using Actual Vehicle Vibration Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
International Workshop on Vision, Communications and Circuits (IWVCC'15) page： - 2015.11
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[Exhibition] An Optical Camera Communication System Using Digital Signage
S. Sato, H. Okada, K. Kobayashi, T. Yamazato, M. Katayama
International Conference and Exhibition on Visible Light Communications page： - 2015.10
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Tracking of LED headlights considering NLOS for an image sensor based V2I-VLC Reviewed
Y. Kawai, T. Yamazato, H. Okada, T. Fujii, T. Yendo, S. Arai, K. Kamakura
International Conference and Exhibition on Visible Light Communications page： - 2015.10
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An Analyzing Method Using Self-Organizing Map for MIMO Mesh Networks Reviewed
Y. Minematsu, H. Okada, K. Kobayashi, M. Katayama
Asia-Pacific Conference on Communications page： 37-41 2015.10
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ON-OFF Error Control Coding Scheme for Minimizing Tracking Error in Wireless Feedback Control Systems Reviewed
S. Hattori, K. Kobayashi, H. Okada, M. Katayama
IEEE Transactions on Industrial Informatics Vol. 11 ( 6 ) page： 1411-1421 2015.10
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Message Communication System Using Unmanned Aerial Vehicles under Large-Scale Disaster Environments Reviewed
K. Mase, H. Okada
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 2366-2371 2015.9
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Vehicle Motion and Pixel Illumination Modeling for Image Sensor Based Visible Light Communication Reviewed
T. Yamazato, M. Kinoshita, S. Arai, E. Souke, T. Yendo, T. Fujii, K. Kamakura, H. Okada
IEEE Journal on Selected Areas in Communications Vol. 33 ( 9 ) page： 1793-1805 2015.9
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Signal Demodulation Method from Degraded Image for Visible Light Communication Using LED and High-Speed Camera Reviewed
Y. Ohira, S. Arai, T. Yendo, T. Yamazato, H. Okada, T. Fujii, K. Kamakura
IEICE Transactions on Communications Vol. J98-B ( 7 ) page： 696-706 2015.7
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Area Transmission Efficiency of Single-User and Multi-User MIMO in Grid-Topology Wireless Mesh Networks Reviewed
H. Kusumoto, H. Okada, K. Kobayashi, M. Katayama
IEEE Vehicular Technology Conference 2015.5
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Joint Random Network and Multi-Route Coding for Information Advertisement in Wireless Mesh Networks Reviewed
Y. Sugao, H. Okada, K. Kobayashi, M. Katayama
IEICE Transactions on Communications Vol. J98-B ( 4 ) page： 373-382 2015.4
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Predictive Control for Performance Improvement of a Feedback Control System using Cyclostationary Channels Reviewed
C. Carrizo, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. E98-A ( 4 ) page： 1000-1005 2015.4
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Investigation on Relationship Between Communication Distance and Receiving Characteristics in Image-Sensor-Based Visible Light Communication Reviewed
Y. Ohira, E. Souke, S. Arai, T. Yamazato, T. Yendo, H. Okada, T. Fujii and K. Kamakura
RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing page： 274-277 2015.2
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Cooperative Repeaters to Improve Data Collection in Low Power Generation for Solar-powered Wireless Sensor Networks Reviewed
N. Ishitani, K. Kobayashi, H. Okada, M. Katayama
IEEE Consumer Communications and Networking Conference page： 361-366 2015.1
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Construction of a Node-combined Wireless Network for Large-scale Disasters Reviewed
A. Mori, H. Okada, K. kobayashi, M. Katayama, K. Mase
IEEE Consumer Communications and Networking Conference page： 219-224 2015.1
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Outdoor Road-to-Vehicle Visible Light Communication Using On-Vehicle High-Speed Camera Reviewed
C. Premachandra, T. Yendo, M. P. Tehrani, T. Yamazato, H. Okada, T. Fujii, M. Tanimoto
International Journal of Intelligent Transportation Systems Research Vol. 13 ( 1 ) page： 28-36 2015.1
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An Information Sharing Method Using Compressed Sensing in Wireless Distributed Networks Reviewed
S. Suzaki, H. Okada, K. Kobayashi, M. Katayama
IEEE International Workshop on Management of Emerging Networks and Services page： 345-349 2014.12
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Motion Modeling of Mobile Transmitter for Image Sensor Based I2V-VLC, V2I-VLC, and V2V-VLC Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEEE Workshop on Optical Wireless Communications page： 535-540 2014.12
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Channel Fluctuation Measurement for Image Sensor Based I2V-VLC, V2I-VLC, and V2V-VLC Reviewed
M. Kinoshita, T. Yamazato, H, Okada, T. Fujii, S. Arai, T. Yendo, K. Kamakura
IEEE Asia Pacific Conferece on Circuits and Systems page： 332-335 2014.11
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BER Characteristic of Optical-OFDM using OCI Reviewed
Y. Goto, I. Takai, T. Yamazato, H. Okada, T. Fujii, S. Kawahito, S. Arai, T. Yendo, K. Kamakura
IEEE Asia Pacific Conferece on Circuits and Systems page： 328-331 2014.11
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Compressed Sensing and Compressed Transmission Methods for Information Gathering of Link Quality in Wireless Distributed Networks Reviewed
S. Suzaki, H. Okada, K. Kobayashi, M. Katayama
IEICE Transactions on Communications Vol. J97-B ( 10 ) page： 939-948 2014.10
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Mutual Information Evaluation and Optimization of Intermittent Transmission Methods in Energy Harvesting Wireless Sensor Networks Reviewed
X. Fan, H. Okada, K. Kobayashi, M. Katayama
IEICE Transactions on Communications Vol. E97-B ( 9 ) page： 1826-1834 2014.9
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Distance Estimation Scheme for Integrated V2I-VLC for driving vehicle Reviewed
A. Ohmura, T. Yamazato, H. Okada, T. Fujii, T. Yendo, S. Arai, K. Kamakura
IEICE Transaction on Communications Vol. J97-B ( 8 ) page： 695-696 2014.8
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A New LED Array Acquisition Method Focusing on Time-gradient and Space-gradient Values for Road to Vehicle Visible Light Communication Reviewed
S.Usui, T.Yamazato, H.Okada, T.Fujii, K.Takahashi, T.Yendo, S.Arai
IEICE Transactions on Communications Vol. J97-B ( 7 ) page： 536-545 2014.7
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Performance analysis on the influence of the delay of the relayed signal in a piggyback spectrum sharing system Reviewed
J. Naganawa, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Communications Vol. J97-B ( 7 ) page： 525-535 2014.7
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Spectrum Sharing Overlay System with a Repeater for the Primary Signal Reviewed
J. Naganawa, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. E97-A ( 7 ) page： 1576-1586 2014.7
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Switching Methods for Semi-Fixed Rate Control in IEEE 802.11n Wireless Mesh Networks Reviewed
H. Okada, A. Yoshimoto, K. Kobayashi, M. Katayama, K. Mase
page： - 2014.5
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A symbol mapping scheme for a secondary signal in piggyback spectrum sharing with relay of a primary signal Reviewed
J. Naganawa, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. J97-A ( 2 ) page： 112-115 2014.2
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Multiple LED Arrays Acquisition for Image-Sensor-Based I2V-VLC Using Block Matching Reviewed
S. Arai, Y. Shiraki, T. Yamazato, H. Okada, T. Fujii, T. Yendo
page： 605-610 2014.1
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A Study on the Reduction of Synchronization Error using a Relay of Predictive Control Information in Wireless Control of Multiple Plants Reviewed
A. Tanaka, K. Kobayashi, H. Okada, M. Katayama
page： 150-154 2013.12
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A Note on Adaptive Coding Scheme for Minimizing Tracking Error in Wireless Feedback Control Systems Reviewed
S. Hattori, K. Kobayashi, H. Okada, M. Katayama
page： 867-872 2013.12
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Accuracy Improvement by Phase Only Correlation for Distance Estimation Scheme for Visible Light Communications Using an LED Array and a High-speed Camera Reviewed
A. Ohmura, T. Yamazato, H. Okada, T. Fujii, T. Yendo, S. Arai
IEICE Transaction on Communications Vol. J96-B ( 12 ) page： 1365-1368 2013.12
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A Note on Adaptive Coding Scheme for Improvement of Reference Tracking in Wireless Feedback Control systems Reviewed
S. Hattori, K. Kobayashi, H. Okada, M. Katayama
page： 4438-4443 2013.11
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Maximum likelihood receiver using state observer for wireless feedback control systems Reviewed
K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. J96-A ( 11 ) page： 745-755 2013.11
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Feedback Control Scheme with Prediction for Power Line Communication Channels Reviewed
C. Carrizo, K. Kobayashi, H. Okada, M. Katayama
page： 289-293 2013.10
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Utilization of Spatio-temporal Image for LED Array Acquisition in Road to Vehicle Visible Light Communication Reviewed
S. Usui, T. Yamazato, S. Arai, T. Yendo, T. Fujii, H. Okada
page： - 2013.10
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Accuracy Improvement by Phase Only Correlation for Distance Estimation Scheme for Visible Light Communications Using an LED Array and a High-speed Camera Reviewed
A. Ohmura, T. Yamazato, H. Okada, T. Fujii, T. Yendo, S. Arai
page： - 2013.10
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A Note on Adaptive Coding Scheme Based on Control Quality for Wireless Feedback Control Systems Reviewed
S. Hattori, K. Kobayashi, H. Okada, M. Katayama
18th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA2013) page： - 2013.9
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A Study on Network and Multi-Route Coding for Information Advertisement in Wireless Mesh Networks Reviewed
Y. Sugao, H. Okada, K. Kobayashi, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 2351-2355 2013.9
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An Application of Multi-User MIMO to Wireless Mesh Networks and its Performance Analysis Reviewed
H. Kusumoto, H. Okada, K. Kobayashi, M. Katayama
IEICE Transactions on Communications Vol. J96-B ( 7 ) page： 670-679 2013.7
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Interpixel Interference Cancellation Method for Road-to-Vehicle Visible Light Communication Reviewed
T. Kasashima, T. Yamazato, H. OKada, T. Fujii, T. Yendo, S. Arai
International Symposium on Wireless Vehicular Communications page： - 2013.6
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Channel Information Estimation for Error Correcting Code in Road-to-Vehicle Visible Light Communication Systems Reviewed
H. Okada, S. Misawa, T. Yamazato, T. Fujii, T. Yendo
International Symposium on Wireless Vehicular Communications page： - 2013.6
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Impact of the reduction of transmitted information on the control quality in a wireless feedback control system Reviewed
R. Mizutani, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. E96-A ( 5 ) page： 869-877 2013.5
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Development of Simple Simulator for Visible Light Communication Using LED and Camera Reviewed
T. Fukumoto, S. Arai, T. Yendo, T. Yamazato, H. Okada and T. Fujii
Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'13) page： 33-36 2013.3
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Overlay Coding of Long Range Data and Short Range Data for Road-to-Vehicle Visible Light Communication Using LED Array and High-Speed Camera Reviewed
S. Nishimoto, T. Yamazato, H. Okada, T. Fujii, T. Yendo, S. Arai
IEICE Transactions on Communications Vol. J96-B ( 2 ) page： 191-201 2013.2
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A Study on the Simulator Development for Visible Light Communication Using LED and Camera
T. Fukumoto, S. Arai, T. Yendo, T. Yamazato, H. Okada and T. Fujii
Proceedings of IEEE Workshop on Nonlinear Circuit Networks (NCN'12) page： 124-127 2012.12
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High-speed Transmission of Overlay Coding for Road-to-Vehicle Visible Light Communication Using LED Array and High-Speed Camera Reviewed
S. Nishimoto, T. Yamazato, H. Okada, T. Fujii, T. Yendo, S. Arai
IEEE Workshop on Optical Wireless Communications page： 1234-1238 2012.12
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Network Construction Management for Emergency Communication System SKYMESH in Large Scale Disaster Reviewed
H. Okada, H. Oka, K. Mase
IEEE International Workshop on Management of Emerging Networks and Services page： 875-880 2012.12
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Multiple Information Sources Recognition Method for Ubiquitous Visible Light Communication Using on-Vehicle High-Speed Camera Reviewed
Y. Shiraki, T. Yamazato, H. Okada, T. Fujii, T. Yendo, S. Arai
IEICE Transactions on Communications Vol. J95-B ( 11 ) page： 1517-1528 2012.12
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Performance Comparison between Single-User MIMO and Multi-User MIMO in Wireless Mesh Networks Reviewed
H. Kusumoto, H. Okada, K. Kobayashi, M. Katayama
International Symposium on Wireless Personal Multimedia Communications page： 199-203 2012.9
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A Study on Cluster Lifetime in Multi-Hop Wireless Sensor Networks with Cooperative MISO Scheme Reviewed
Z. Huang, H. Okada, K. Kobayashi, M. Katayama
Journal of Communications and Networks Vol. 14 ( 4 ) page： 443-450 2012.8
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A Study on Mutual Information Evaluation of Intermittent Transmission Method for Energy Harvested Wireless Sensor Networks Reviewed
X. Fan, H. Okada, K. Kobayashi, M. Katayama
The 9th IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium page： B2.3 2012.8
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Simple Analytical Method for Wireless Distributed Networks Considering Contending and Hidden Nodes Reviewed
H. Okada, K. Mase
IEICE Communications Express Vol. 1 ( 3 ) page： 101-106 2012.8
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Control Quality of a Feedback Control System Under Cyclostationary Noise in Power Line Communication Reviewed
C. Carrizo, K. Kobayashi, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. E95-A ( 4 ) page： 706-712 2012.4
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A Study on Cluster Partitioning with Cooperative MISO Scheme in Wireless Sensor Networks Reviewed
Z. Huang, H. Okada, M. Katayama, T. Yamazato
International Journal of Distributed Sensor Networks Vol. 2012 page： 1-9 2012.3
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LED Array Tracking Method for Road-to-Vehicle Visible Light Communications in the Driving Situation Reviewed
T. Nagura, T. Yamazato, S. Arai, H. Okada, T. Yendo, T. Fujii
IEICE Transactions on Communications Vol. J95-B ( 2 ) page： 326-336 2012.2
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High-Speed LED Traffic Light Tracking Method Using Image/High-Speed Communication Hybrid Sensor Reviewed
K. Maeno, M. Tehrani, T. Fujii, H. Okada, T. Yamazato, M. Tanimoto, T. Yendo
International Workshop on Advanced Image Technology (IWAIT2012) page： - 2012.1
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A Node-Based Transmission Rate Selection Scheme for Wireless Mesh Networks Reviewed
H. Okada, H. Kitahara, K. Mase
IEICE Transactions on Communications Vol. J94-B ( 12 ) page： 1556-1565 2011.12
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Link-by-Link Video Transmission for Emergency Communication System "Skymesh" Reviewed
H. Okada, Y. Kawakami, K. Mase
ACM Workshop on Wireless Multimedia Networking and Computing page： 41-47 2011.10
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Robust Receiver Design for Road-to-Vehicle Communication System Using LED Array and High-Speed Camera Reviewed
Y. Shiraki, T. Nagura, T. Yamazato, S. Arai, T. Yendo, T. Fujii, H. Okada
18th World Congress on Intelligent Transport Systems page： - 2011.10
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Overlay Coding for Road-to-Vehicle Visible Light Communication using LED Array and High-Speed Camera Reviewed
S. Nishimoto, T. Nagura, T. Yamazato, T. Yendo, T. Fujii, H. Okada, S. Arai
International IEEE Conference on Intelligent Transportation Systems page： 1704-1709 2011.10
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i-LightHouse: a Visible Light Communication System for the Visually Impaired Reviewed
A. Funahashi, K. Kobayashi, H. Okada, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 1031-1034 2011.9
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An Ad Hoc Network Construction System Using Balloon and Terrestrial Nodes in an Emergency Reviewed
H. Oka, H. Okada, K. Mase
IEICE Transactions on Communications Vol. J94-B ( 7 ) page： 822-832 2011.7
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An ARQ Scheme Using NACK for Network Coding in Wireless Multihop Networks Reviewed
H. Okada, H. Hiramuki, K. Mase
Ad Hoc, Sensor and P2P Workshop (AHSP2011) page： 471-476 2011.6
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Experimental Evaluation of Rate Switch Control in Wireless Mesh Networks Reviewed
T. Togashi, K. Mase, H. Okada
IEEE Vehicular Technology Conference 2011.5
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LED Traffic Light Detection Using High-speed-camera Image Processing for Visible Light Communication System Reviewed
H. C. N. Premachandra, T. Yendo, M. P. Tehrani, T. Yamazato, H. Okada, T. Fujii, M. Tanimoto
The Journal of the Institute of Television Engineers of Japan Vol. 65 ( 3 ) page： 354-360 2011.2
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Channel Property of an Ad Hoc Communication System in the Sky, SKYMESH Reviewed
T. Umeki, H. Okada, K. Mase
IEICE Transactions on Communications Vol. J94-B ( 2 ) page： 94-102 2011.2
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Erasure Coding for Road-to-Vehicle Visible Light Communication Systems Reviewed
H. Okada, T. Ishizaki, T. Yamazato, T. Yendo, T. Fujii
IEEE Intelligent Vehicular Communications System Workshop page： 970-974 2011.1
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Hierarchical Encoding System of Road-to-Vehicle Communication Reviewed
T. Masuda, T. Yendo, T. Yamazato, H. Okada, M. P. Tehrani, T. Fujii, M. Tanimoto
International Workshop on Advanced Image Technology (IWAIT2011) page： - 2011.1
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Image Processing Based Road-to-vehicle Visible Light Communication Reviewed
H. C. N. Premachandra, T. Yendo, M. P. Tehrani, T. Yamasato, H. Okada, T. Fujii, M. Tanimoto
International Workshop on Advanced Image Technology (IWAIT2011) page： - 2011.1
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Parallel Communication Using Visually Non-Lighting LEDs Reviewed
K. Maeno, T. Yendo, M. P. Tehrani, T. Fujii, H. Okada, T. Yamazato, M. Tanimoto
International Workshop on Advanced Image Technology (IWAIT2011) page： - 2011.1
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Performance of Wireless Mesh Networks with Three Sector Antenna Reviewed
X. Liu, H. Okada, K. Mase
International Conference on Mobile Ad-hoc and Sensor Networks (MSN) page： 146-153 2010.12
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Parallel Visible Light Communication Using Visually Non-Lighting LEDs Reviewed
K. Maeno, T. Yendo, M. P. Tehrani, T. Fujii, T. Yamazato, H. Okada, M. Tanimoto
Workshop on Picture Coding and Image Processing, PCSJ2010/IMPS2010 page： - 2010.12
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Experimental Evaluation of SKYMESH Using Terrestrial Nodes Reviewed
H. Oka, H. Okada, K. Mase
Asia-Pacific Conference on Communications page： 57-62 2010.11
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Experimental Results on Simple Distributed Cooperative Transmission Scheme with Visible Light Communication Reviewed
T. Yamazato, K. Nakao, H. Okada, M. Katayama
IEICE Transactions on Communications Vol. E93-B ( 11 ) page： 2959-2962 2010.11
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A Duplicate Address Detection Scheme Using Partial Keys for MANETs Reviewed
H. Okada, K. Akima, T. Shida, K. Mase
IEICE Transactions on Communications Vol. J93-B ( 11 ) page： 1522-1530 2010.11
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A Message Communication System for Evacuees of Shelters Interworking with the Internet Reviewed
K. Mase, H. Okada, N. Azuma, T. Yamaguchi
IEICE Transactions on Communications Vol. J93-B ( 10 ) page： 1356-1367 2010.10
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Tracking an LED Array Transmitter for Visible Light Communications in the Driving Situation Reviewed
T. Nagura, T. Yamazato, M. Katayama, T. Yendo, T. Fujii, H. Okada
IEEE International Symposium on Wireless Communication Systems (ISWCS2010) page： 765-769 2010.9
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Performance Analysis of Wireless Mesh Networks with Three Sector Antennas Reviewed
H. Okada, K. Mase
International Conference on Wireless Communications and Mobile Computing page： 1232-1236 2010.7
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High-speed-camera Image Processing Based LED Traffic Light Detection for Road-to-vehicle Visible Light Communication Reviewed
H.C.N. Premachandra, T. Yendo, M. P. Tehrani, T. Yamazato, H. Okada, T. Fujii, M. Tanimoto
IEEE Intelligent Vehicles Symposium page： 793-798 2010.6
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Improved Decoding Methods of Visible Light Communication System for ITS using LED Array and High-Speed Camera Reviewed
T. Nagura, T. Yamazato, M. Katayama, T. Yendo, T. Fujii, H. Okada
IEEE Vehicular Technology Conference (VTC-Spring2010) 2010.5
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Development of an Emergency Communication System for Evacuees of Shelters Reviewed
K. Mase, H. Okada, N. Azuma
IEEE Wireless Communications and Networking Conference 2010.4
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Interference-Aware Dynamic Channel Selection System for Vehicular Ad Hoc Networks Reviewed
T. Goi, H. Okada, K. Mase
IEICE Transactions on Communications Vol. J93-B ( 2 ) page： 143-152 2010.2
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Experimental Evaluation of a Novel Transmission Rate Assignment Scheme in Wireless Mesh Networks Reviewed
H.Kitahara, H.Okada, K.Mase
Fourth IEEE International Workshop on Personalized Networks 2010.1
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A Congestion Control Scheme for Layer 3 Wireless Mesh Networks Reviewed
K.Nakajima, K.Mase, H.Okada
Asia-Pacific Conference on Communications page： 722-725 2009.10
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RSSI-based Cross Layer Link Quality Management for Layer 3 Wireless Mesh Networks Reviewed
K.Mase, H.Okada, Y.Nakano
International Conference on Software, Telecommunications and Computer Networks page： 101-105 2009.9
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A Proposal of Low-overhead Routing Scheme for Layer 3 Wireless Mesh Networks Reviewed
N.Azuma, K.Mase, H.Okada
International Symposium on Wireless Personal Multimedia Communications page： - 2009.9
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An Overhead Reduction Strategy for Weak Duplicate Address Detection in Mobile Ad Hoc Networks Reviewed
H.Okada, K.Akima, K.Mase
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 2618-2622 2009.9
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Evaluation of Wireless Channel Quality for an Ad Hoc Network in the Sky, SKYMESH Reviewed
T.Umeki, H.Okada, K.Mase
International Symposium on Wireless Communication Systems page： 585-589 2009.9
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A Proposal of Link Metric for Next-Hop Forwarding Methods in Vehicular Ad Hoc Networks Reviewed
H. Okada, A. Takano, K. Mase
IEEE Consumer Communications and Networking Conference 2009.1
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Joint Channel Decoding of Spatially and Temporally Correlated Data in Wireless Sensor Networks Reviewed
K. Kobayashi, T. Yamazato, H. Okada, M. Katayama
The 2008 International Symposium on Information Theory and Its Applications page： 930-934 2008.12
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Error Correction Using Time-Dependent Correlation and Transmit Power Control in Sensor Networks Reviewed
S. Doki, H. Okada, K. Mase
IEICE Transactions on Communications Vol. E91-B ( 11 ) page： 3426-3433 2008.11
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A Practice for Providing Wireless Broadband Access in Support of Disaster Recovery in Rural Hill-Village Areas: An Overview of Yamakoshi-net Joint Experiments Project Invited Reviewed
K. Mase, H. Okada, and Y. Owada
Journal of IEICE Vol. 91 ( 10 ) page： 857-861 2008.10
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Performance Comparison of ARQ Schemes for Network Coding in Ad Hoc Networks Reviewed
H. Hiramuki, H. Okada, K. Mase
IEEE Internatinal Workshop on Wireless Distributed Networks 2008.9
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Fundamental Characteristics of Connectivity in Vehicular Ad Hoc Networks Reviewed
S. Shioda, J. Harada, Y. Watanabe, T. Goi, H. Okada, K. Mase
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication 2008.9
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CDMA slotted ALOHA System with Successive Interference Cancellation for Inter-Vehicle Communications Reviewed
A.Sakata, T.Yamazato, H.Okada, M.Katayama
IEEE International Symposium on Spread Spectrum Techniques and Applications page： 188-193 2008.8
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Analysis and Proposal of Position-Based Routing Protocols for Vehicular Ad Hoc Networks Reviewed
H. Okada, A. Takano, K. Mase
IEICE Transactions on Fundamentals Vol. E91-A ( 7 ) page： 1634 - 1641 2008.7
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A Route Establishment Scheme for Multi-route Coding in Multihop Cellular Networks Reviewed
H. Okada, H. Imai, T. Yamazato, M. Katayama, K. Mase
Academy Publisher Journal of Netowkrs Vol. 3 ( 7 ) page： 34-40 2008.7
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Joint Decoding and Transmit Power Control Using Time-Dependent Correlation in Sensor Networks Reviewed
S. Doki, H. Okada, K. Mase
IEEE Vehicular Technology Conference page： 178-182 2008.5
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Spatial Diversity Scheme with Multiple-Transmit/Receive Antennas and Relay Terminals for Reliable Wireless Control Reviewed
R. Uchida, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Communications Vol. J91-B ( 5 ) page： 585-594 2008.5
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A Testbed-based Approach to Develop Layer 3 Wireless Mesh Network Protocols Reviewed
K. Mase, Y. Owada, H. Okada, T. Imai
International Conference on Testbeds and Research Infrastructures for the Development of Networks & Communications page： - 2008.3
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Effect of Route Diversity by Employing Turbo Coding in Multihop Ad Hoc and Mesh Networks Reviewed
T. Wada, H. Okada, K. Ohuchi, M. Saito
International Journal of Sensor Networks Vol. 3 ( 2 ) page： 75-83 2008.2
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Proposal of an Iterative Channel Information Estimation Scheme on Multi-hop Networks Reviewed
K. Ohuchi, T. Wada, H. Okada, M. Saito
International Conference on Information, Communications and Signal Processing 2007.12
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Correlations of noise waveforms at different outlets of power-line network Reviewed
A. Kawaguchi, H. Okada, T. Yamazato, M. Katayama
IEICE Transaction on Fundamentals Vol. J90-A ( 11 ) page： 851-860 2007.11
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Performance Comparison of a Position-Based Routing Protocol for VANET Reviewed
A. Takano, H. Okada, K. Mase
International Workshop on Mobile Vehicular Networks 2007.10
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A Novel Contention-Free Medium Access Control Protocol for Inter-Vehicle Communication Systems Reviewed
M. Masamura, H. Okada, S. Makido, T. Yamazato, M. Katayama
The First International Workshop on Mobile Vehicular Networks 2007.10
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A Route Selection Scheme for Multi-Route Coding in Multihop Cellular Networks Reviewed
H. Okada, H. Imai, T. Yamazato, M. Katayama, K. Mase
IEEE Vehicular Technology Conference page： 6-10 2007.10
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Distributed Space-Time Block Coding for Large and Undetermined Set of Relay Terminals Reviewed
R. Uchida, H. Okada, T. Yamazato, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication 2007.9
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A Wireless Mesh Network Testbed in Rural Mountain Areas Reviewed
Y. Takahashi, Y. Owada, H. Okada, K. Mase
The Second ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation and Characterization page： 91-92 2007.9
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A Low-Overhead Handling Scheme of STA Association Information for IEEE 802.11s Reviewed
H. Okada, K. Mase, M. Nozaki, B. Zhang
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication 2007.9
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A study on position estimation method for multiple targets detection for automotive radar networks Reviewed
H. Hatano, T. Yamazato, H. Okada, M. Katayama
Transactions of Society of Automotive Engineers of Japan Vol. 38 ( 5 ) page： 191-196 2007.9
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Hierarchical Coding Scheme for Optical Wireless Communicaiton using LED Traffic Light and High-Speed Camera Reviewed
K. Masuda, T. Yamazato, H. Okada, M. Katayama
IEICE Transaction on Fundamentals Vol. J90-A ( 9 ) page： 696-704 2007.9
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Performance Analysis of Source-Destination ARQ Scheme for Multiroute Coding in Wireless Multihop Networks Reviewed
H. Okada, M. Saito, T. Wada, K. Ohuchi
IEICE Transactions on Communications Vol. E90-B ( 8 ) page： 2111-2119 2007.8
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Throughput Comparison of CSMA and CDMA slotted ALOHA in Inter-Vehicle Communication Reviewed
A.Sakata, H.Okada, T.Yamazato, M.Katayama
The 7th International Conference on ITS Telecommunications page： 52-57 2007.6
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Cooperative Transmission Scheme in Distributed Sensor Network for Extension of Transmission Range Reviewed
K. Nakao, T. Yamazato, H. Okada, M. Katayama
Fourth International Conference on Networked Sensing Systems page： 89-92 2007.6
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Performance Evaluation of Wireless Sensor Networks Using Turbo Codes with Multi-Route Transmission Reviewed
T. Wada, K. Ohuchi, A. Jamalipour, H. Okada, M. Saito
IEEE International Conference on Communications page： 3859-3863 2007.6
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Route Diversity Effect of Joint Decoding Using Correlation between Observed Data Sequences in Sensor Networks Reviewed
H. Okada, K. Kobayashi, T. Yamazato, K. Mase
IEEE Vehicular Technology Conference page： 217-221 2007.4
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A Simple Estimator of Multiple Target Positions for Automotive Short Range Radar Networks Reviewed
H. Hatano, T. Yamazato, H. Okada, M. Katayama
IEEE Vehicular Technology Conference page： 2511-2515 2007.4
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Coded Modulation in Consideration of State of Signals for M-ary PSK Coherent Signals Reviewed
T. Otake, H. Okada, T. Yamazato, K. Yamazaki, M. Katayama
IEICE Transaction on Fundamentals Vol. J90-A ( 3 ) page： 257-261 2007.3
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Compensation Scheme for Nonlinear Distortion with 8PSK/OFDM Transmission in Nonlinear Satellite Channel Reviewed
T. Yamaoka, T. Yamazato, H. Okada, M. Katayama
IEICE Transactions on Communications Vol. J90-B ( 2 ) page： 138-147 2007.2
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Route Characteristic Estimation for Multi-Route Coding in Wireless Multihop Networks Reviewed
H. Okada, M. Umakoshi, T. Yamazato, M. Katayama
IEICE Transactions on Communications Vol. J90-B ( 1 ) page： 93-96 2007.1
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Influence of ADC Nonlinearity on the Performance of an OFDM Receiver Reviewed
M. Sawada, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Communications Vol. E89-B ( 12 ) page： 3250-3256 2006.12
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Influence of Characteristics of Wireless Channels on Quality of Wireless Control Systems Reviewed
R. Uchida, H. Okada, T. Yamazato, M. Katayama
IEICE Transaction on Fundamentals Vol. J89-A ( 12 ) page： 1104-1107 2006.12
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Iterative channel decoding scheme using the correlation of transmitted information sequences in sensor networks Reviewed
K. Kobayashi, T. Yamazato, H. Okada and M. Katayama
IEICE Transaction on Fundamentals Vol. J89-A ( 12 ) page： 1044-1056 2006.12
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MIMO Zero-forcing Equalizer for BFDM/OQAM Systems in the Highly Mobile Environments Reviewed
B. Mongol, T. Yamazato, H. Okada, M. Katayama
IEEE Global Communications Conference 2006.11
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MIMO Zero-Forcing Equalizer for BFDM/OQAM Systems in Time-Frequency Dispersive Channels Reviewed
B. Mongol, T. Yamazato, H. Okada, M. Katayama
IEICE Transactions on Fundamentals Vol. E89-A ( 11 ) page： 3114-3122 2006.11
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Iterative Joint Channel-Decoding Scheme Using the Correlation of Transmitted Information Sequences Reviewed
K. Kobayashi, T. Yamazato, H. Okada, M. Katayama
The 2006 International Symposium on Information Theory and Its Applications page： 808-813 2006.10
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Influence of Transmit and Receive Correlations on Performance of the MIMO System with Multiple Antennas and Relay Terminals Reviewed
R. Uchida, H. Okada, T. Yamazato, M. Katayama
The 2006 International Symposium on Information Theory and Its Applications page： 454-459 2006.10
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A study on route selection metrics for the multiple-route packet combining scheme in wireless multihop networks Reviewed
Y. Hirayama, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Communications Vol. J89-B ( 10 ) page： 2047-2051 2006.10
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The Effect of Multipath Hybrid Routing Protocol in Multihop Cellular Networks Reviewed
H. Imai, H. Okada, T. Yamazato, M. Katayama
The 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communication 2006.9
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A Large-Scale Testbed for Wireless Mobile Ad Hoc Networks Reviewed
H. Okada, Y. Owada, Y. Takahashi, K. Mase
The First ACM International Workshop on Wireless Network Testbeds, Experimental evaluation and Characterization page： 91-92 2006.9
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Channel Estimation for BFDM/OQAM System in Dispersive Time-Varying Channels Reviewed
B. Mongol, T. Yamazato, H. Okada, and M. Katayama
International Symposium on Wireless Communication Systems page： 159-163 2006.9
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Source-Destination Hybrid ARQ for Multi-route Coding in Wireless Multi-Hop Networks Reviewed
H. Okada, T. Wada, K. Ohuchi, M. Saito, K. Mase
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication 2006.9
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A Mathematical Model of Noise in Narrowband Power-Line Communication Systems Reviewed
M. Katayama, T. Yamazato, H. Okada
IEEE Journal on Selected Areas in Communications Vol. 24 ( 7 ) page： 1267-1275 2006.7
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Performance of Channel Information Estimation Method Utilizing Parity Check Bits for Turbo Coded Multi-route Multi-hop Networks Reviewed
T. Wada, A. Jamalipour, H. Okada, K. Ohuchi, M. Saito
IEEE International Conference on Communications page： 3688-3692 2006.6
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Bit-error-rate Performance Improvement in Wireless Multi-hop Ad Hoc Networks using Route Diversity Considerations Reviewed
T. Wada, H. Okada, A. Jamalipour, K. Ohuchi, M. Saito
IEEE International Conference on Communications page： 3591-3595 2006.6
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Throughput Evaluation of ARQ Scheme for Multi-route Coding in Wireless Multi-hop Networks Reviewed
H. Okada, T. Wada, K. Ohuchi, M. Saito, T. Yamazato, M. Katayama
IEEE Vehicular Technology Conference page： 668-672 2006.5
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Peformance analysis of UWB Impulse Radar Receiver using Parallel IPCP Reviewed
H. Hatano, T. Yamazato, H. Okada, M. Katayama
IEICE Transaction on Fundamentals Vol. J89-A ( 6 ) page： 544-556 2006.5
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Multi-route Coding in Wireless Multi-hop Networks Reviewed
H. Okada, N. Nakagawa, T. Wada, T. Yamazato, M. Katayama
IEICE Transactions on Communications Vol. E89-B ( 5 ) page： 1620 - 1626 2006.5
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Correlations of noise waveforms at different outlets in a power-line network Reviewed
A. Kawaguchi, H. Okada, T. Yamazato, M. Katayama
IEEE International Symposium on Power Line Communications and Its Applications page： 92-97 2006.3
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Effect of Unequal Power Allocation in Turbo Coded Multi-route Multi-hop Networks Reviewed
T. Wada, A. Jamalipour, K. Ohuchi, H. Okada, M. Saito
Journal of Telecommunications and Information Technology page： 46-53 2006.1
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An improvement of the transmission quality using the correlation of the observation data in sensor networks Reviewed
K. Kobayashi, T. Yamazato, H. Okada and M. Katayama
IEICE Transaction on Fundamentals Vol. J88-A ( 12 ) page： 1442-1451 2005.12
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Target Position Estimation using MMSE for A Radar Network Reviewed
H.Hatano, T. Yamazato, H. Okada, and M. Katayama
IEICE Transaction on Fundamentals Vol. J88-A ( 12 ) page： 1456-1459 2005.12
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Effect of Parity Check Bits in Turbo Coded Multi-route Multi-hop Networks Reviewed
T. Wada, A. Jamalipour, H. Okada, K. Ohuchi, M. Saito
IEEE Global Communications Conference page： 3451-3455 2005.11
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Successive Interference Cancellation for Hierarchical Parallel Optical Wireless Communication Systems Reviewed
H. Okada, K. Masuda, T. Yamazato, M. Katayama
The 11th Asia-Pacific Conference on Communications page： 788-792 2005.10
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Outage Probability of a Macro and Micro MIMO Diversity Scheme in an Indoor Fading and Shadowing Environment Reviewed
R. Uchida, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Fundamentals Vol. E88-A ( 10 ) page： 2945-2951 2005.10
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On the Second-order Statistics of the Channel Parameters for BFDM/OQAM Systems Reviewed
B. Mongol, T. Yamazato, H. Okada, M. Katayama
2nd International Symposium on Wireless Communication Systems page： 534-538 2005.9
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A MIMO System with Relay Terminals for Reliable Wireless Control Reviewed
R. Uchida, H. Okada, T. Yamazato, M. Katayama
The 16th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 1626 - 1630 2005.9
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A New Coded QAM Modulation Scheme for Broadband Satellite Communication Reviewed
T. Yamazato, T. Yamaoka, H. Okada, M. Katayama, A. Ogawa
23rd AIAA International Communications Satellite Systems Conference (ICSSC-2005) page： - 2005.9
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Influence of the Nonlinearity of the ADC in an OFDM Receiver Reviewed
M. Sawada, H. Okada, T. Yamazato, and M. Katayama
The 10th International OFDM-Workshop 2005 page： 220-224 2005.8
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Target position estimation using MMSE for UWB IPCP receivers Reviewed
H. Hatano, T. Yamazato, H. Okada, M. Katayama
The 5th International Conference on ITS Telecommunications page： 131-134 2005.6
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Performance Evaluation of Route Coding Scheme in Wireless Multi-hop Networks Reviewed
H. Okada, T. Wada, K. Ohuchi, M. Saito, T. Yamazato, M. Katayama
IEEE Vehicular Technology Conference page： 3092-3096 2005.6
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Application of Successive Interference Cancellation to a Packet-Recognition/Code-Acquisition Scheme in CDMA Unslotted ALOHA Systems Reviewed
Y. Tadokoro, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Fundamentals Vol. E88-A ( 6 ) page： 1605-1612 2005.6
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Single-user MAP Based Soft-in/Soft-output Parallel Interference Canceler Utilizing Retransmission Diversity Reviewed
Y. Tadokoro, H. Okada, T. Yamazato, and M. Katayama
IEICE Transaction on Fundamentals Vol. J88-A ( 6 ) page： 739-750 2005.6
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Performance Improvement of Turbo Coded Multi-route Multi-hop Networks using Parity Check Codes Reviewed
T. Wada, N. Nakagawa, H. Okada, A. Jamalipour, K. Ohuchi, M. Saito
IEEE Workshop on High Performance Switching and Routing page： 274-277 2005.5
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A Mathematical Model of Narrowband Power-Line Noise Based on Measurements Reviewed
M. Katayama, T. Yamazato, H. Okada
9th International Symposium on Power-Line Communications and Its Applications page： 152-156 2005.4
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An Adaptive Receiver for Power-Line Communications with the Estimation of Instantaneous Noise Power Reviewed
Y. Hirayama, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Fundamentals Vol. E88-A ( 3 ) page： 755-760 2005.3
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An Analysis of the Maximum Throughput on CDMA Packet Communication Systems Employing Successive Interference Cancellation Reviewed
Y. Tadokoro, H. Okada, T. Yamazato, and M. Katayama
Vol. J88-A ( 3 ) page： 429-433 2005.3
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Time-Dependent Analysis of the Multiple-Route Packet Combining Scheme in Wireless Multihop Networks Reviewed
Y. Hirayama, H. Okada, T. Yamazato, M. Katayama
International Journal of Wireless Information Networks Vol. 12 ( 1 ) page： 35-45 2005.1
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Performance analysis of multi-route packet combining scheme for real-time communications in wireless multihop networks Reviewed
Y. Hirayama, N. Nakagawa, H. Okada, T. Yamazato, and M. Katayama
IEICE Transactions on Communications Vol. J88-B ( 1 ) page： 269-279 2005.1
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A Study on Effect of Turbo Codes with Unequal Power Allocation on Multi-hop Networks Reviewed
T. Wada, K. Ohuchi, H. Okada, A. Jamalipour, M. Saito
The 3rd Workshop on the Internet, Telecommunications and Signal Processing page： - 2004.12
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Performance Evaluation for Error Correcting Scheme on Multiple Routes in Wireless Multi-hop Networks Reviewed
N. Nakagawa, H. Okada, T. Wada, T. Yamazato, M. Katayama
The 2004 International Symposium on Information Theory and Its Applications page： 1535-1539 2004.10
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A Macro and Micro MIMO Diversity Scheme for a Shadowing Environment Reviewed
R. Uchida, H. Okada, T. Yamazato, M. Katayama
The 2004 International Symposium on Information Theory and Its Applications page： 1353-1358 2004.10
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The Optimum Received Signal-Power Distribution for CDMA Packet Communication Systems Employing Successive Interference Cancellation Reviewed
Y. Tadokoro, H. Okada, T. Yamazato, M. Katayama
IEEE International Symposium on Spread Spectrum Techniques and Applications page： 37-41 2004.9
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A Simple Data Relay Process and Turbo Code Application to Wireless Sensor Networks Reviewed
T. Yamazato, H. Okada, M. Katayama, A. Ogawa
1st International Symposium on Wireless Communication Systems page： 398-402 2004.9
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A Study on Error Correcting and Diversity Combiner Scheme on Multiple Routes in Wireless Multi-hop Networks Reviewed
H. Okada, N. Koie, N. Nakagawa, T. Yamazato, M. Katayama
1st International Symposium on Wireless Communication Systems page： 183-187 2004.9
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Performance Analysis of MC-CDMA System with and without Guard Interval in Two-Path Channel Reviewed
H. Yamamoto, T. Yamazato, H. Okada, and M. Katayama
IEEE International Symposium on Spread Spectrum Techniques and Applications page： 67-71 2004.9
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Performance analysis of multiple-route packet combining scheme for real-time communications in wireless multihop networks Reviewed
Y. Hirayama, N. Nakagawa, H. Okada, T. Yamazato, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 140-144 2004.9
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Performance Analysis of UWB Impulse Radar Using Parallel IPCP Receiver Reviewed
H. Hatano, H. Okada, T. Yamazato, M. Katayama
1st International Symposium on Wireless Communication Systems page： 115-119 2004.9
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Assisted Highway System Using Reference Course Information and Inter-Vehicle Communications Reviewed
D. Yamakage, T. Yamazato, H. Okada, M. Katayama
The 4th International Workshop on ITS Telecommunications page： 181-185 2004.7
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Development of a Magnetic-quadrupole and an Electric-octapole Ion Trap for Precision Control of Quantum States of Trapped Ions Reviewed
M. Aramaki, Y. Ohno, H. Okada, N. Nishizawa, J. Higuchi
International COE Forum on Plasma Science and Technology page： 275-276 2004.4
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A Study for Wireless TCP Access with Base Station Diversity Reviewed
K. Naito, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Communications Vol. J87-B ( 4 ) page： 512-523 2004.4
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An Adaptive PLC Receiver with the Estimation of Instantaneous Noise Power Reviewed
Y. Hirayama, H. Okada, T. Yamazato and M. Katayama
8th International Symposium on Power-Line Communications and Its Applications page： 116-121 2004.3
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A study of adaptive MMSE receiver operating in thefrequency domain for CDMA system Reviewed
H. Takeuchi, T. Yamazato, H. Okada, M. Katayama
2004 RISP International Workshop on Nonlinear Circuits and Signal Processing page： 57-60 2004.3
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SNIR Analysis of Asynchronous MC-CDMA System in Frequency Selective Fading Channel Reviewed
H. Takeuchi, T. Yamazato, H. Okada and M. Katayama
IEICE Transaction on Fundamentals Vol. J86-A ( 12 ) page： 1426-1430 2003.12
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Reducing Peak Power of Coded OFDM Systems with Multiple Symbol Mapping Reviewed
M. Harada, T. Yamazato, H. Okada, M. Katayama, and A. Ogawa
IEICE Transaction on Fundamentals Vol. J86-A ( 10 ) page： 1058-1067 2003.10
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Performance Improvement for Coded OFDM Systems with Adaptive Interleaving in Frequency Selective Fading Channel Reviewed
M. Harada, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
IEICE Transactions on Fundamentals Vol. E86-A ( 6 ) page： 1541-1549 2003.6
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Noise analysis on wide-band PLC with high sampling rate and long observation time Reviewed
Y. Hirayama, H. Okada, T. Yamazato and M. Katayama
7th International Symposium on Power-Line Communications and Its Applications page： 142-147 2003.3
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A Study on Turbo Soft-Decision Decoding for Hard Detected Optical Communication Signals Reviewed
C. Zheng, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
IEICE Transactions on Communications Vol. E86-B ( 3 ) page： 1022-1030 2003.3
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Soft-Decision Decoding of Low-Density Parity-Check Codes for Hard-Detected Optical Communication Signals Reviewed
C. Zheng, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
IEICE Transactions on Communications Vol. E86-B ( 3 ) page： 1132-1135 2003.3
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Comparison of Multiple Access Schemes in Multibeam Non-GEO Satellite Communication Systems Reviewed
N. Ichikawa, M. Katayama, H. Okada, T. Yamazato, A. Ogawa
IEICE Transactions on Communications Vol. E86-B ( 2 ) page： 785-791 2003.2
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Performance Analysis of CDMA Unslotted ALOHA System Employing Successive Interference Cancellation Reviewed
Y. Tadokoro, H. Okada, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. J86-A ( 2 ) page： 168-178 2003.2
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Medium Access Control Protocol Based on Estimation of Multimedia Traffic with an Adaptive Algorithm in CDMA Packet Communications Reviewed
Y. Hirayama, H. Okada, T. Yamazato, and M. Katayama
IEICE Transactions on Fundamentals Vol. E85-A ( 12 ) page： 2868-2876 2002.12
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A Study on the Application of Error Concealment Technique to Real-Time Parallel Video Decoder Reviewed
M. Honjo, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. J85-A ( 12 ) page： 1463-1468 2002.12
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Performance Improvement of OFDM System with Consideration on the Characteristics of Power-Line Noise Reviewed
K. Sugimoto, H. Okada, T. Yamazato, M. Katayama
IEICE Transactions on Fundamentals Vol. E85-A ( 12 ) page： 2822-2829 2002.12
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Spread Sequence for Multicarrier CDMA under the Effect of Nonlinear Amplifier Reviewed
M. Harada, T. Yamazato, H. Okada, and M. Katayama
International Symposium on Information Theory and Its Applications page： 435-438 2002.10
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Decoding of low-density parity-check codes for hard-detected optical fiber communication signals Reviewed
C. Zheng, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
International Symposium on Information Theory and Its Applications page： 331-334 2002.10
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Reduced Peak Power Transmission for Convolutionally Coded OFDM Signals Reviewed
M. Harada, T. Yamazato, H. Okada, and M. Katayama
7th International-OFDM Workshop 2002 page： 102-106 2002.9
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An access control protocol based on estimation of multimedia traffic with an adaptive algorithm in CDMA packet network Reviewed
Y. Hirayama, H. Okada, T. Yamazato, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 619-623 2002.9
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BER Performance of Asynchronous Multicarrier-CDMA System and Asynchronous DS-CDMA System in Frequency Selective Fading Reviewed
H. Takeuchi, T. Yamazato, H. Okada, and M. Katayama
7th International-OFDM Workshop 2002 page： 26-30 2002.9
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Effect of Interleaving and FEC on the Throughput of CDMA Unslotted ALOHA System with Adaptive Multiuser Receiver Reviewed
H. Okada, T. Yamazato, M. Katayama
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 941-945 2002.9
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Turbo Decoding for Hard-Detected Signals of Fiber Optical Communications Reviewed
C. Zheng, T. Yamazato, H. Okada, M. Katayama, and A. Ogawa
IASTED Wireless and Optical Communications 2002 (WOC 2002) Conference page： - 2002.7
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New Analytical Model for TCP in wireless Environments Reviewed
K. Naito, H. Okada, M. Saito, T. Yamazato, and M. Katayama
IEICE Transactions on Fundamentals Vol. E85-A 7 page： 1501-1510 2002.7
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Performance Evaluation of PredictionError Based MAP Receiver for DCT Compressed Image Transmission Reviewed
S. Makido, M. Honjo, T. Yamazato, H. OKada, M. Katayama, A. Ogawa
The Journal of the Institute of Television Engineers of Japan Vol. 56 ( 5 ) page： 842-845 2002.5
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CDMA Packet Recognition and Signal Acquisition using LMS-based Adaptive Receiver Reviewed
T. Kume, T. Yamazato, K. Ban, H. Okada, and M. Katayama
IEEE Wireless Communications and Networking Conference page： 379-383 2002.3
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Effect of Nonlinear Amplifiers of Transmitters in Multicarrier CDMA Systems Reviewed
H. Muramatsu, M. Harada, T. Yamazato, H. Okada, M. Katayama
IEICE Transaction on Fundamentals Vol. J85-A ( 3 ) page： 340-348 2002.3
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The Real-Time Parallel Video Decoder Considered on the Complexity and Delay of Error Correcting Decoding Reviewed
M. Honjo, S. Makido, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. J85-A ( 2 ) page： 214-230 2002.2
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Hierarchical Transmission of Video Signal Using Multi-Code DS/SS Modulation Based on DCT Coefficients Reviewed
M. Honjo, S. Makido, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
IEEE Global Communications Conference page： 3395-3399 2001.11
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A New Packet Detection Scheme in CDMA Unslotted ALOHA System with Successive Interference Cancellation Reviewed
Y. Tadokoro, H. Okada, T. Yamazato, M. Katayama and A. Ogawa
IEEE Global Communications Conference page： 3173-3177 2001.11
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An Adaptive Antenna Selection Scheme for Transmit Diversity in OFDM Systems Reviewed
H. Shi M. Katayama T. Yamazato H.Okada and A.Ogawa
IEEE Vehicular Technology Conference page： 2168-2172 2001.10
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BER Analysis for Multi-carrier DS CDMA with Multi-rate Traffic Reviewed
A. Sandouk, M. Harada, H. Okada, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transactions on Fundamentals Vol. E84-A ( 7 ) page： 1723-1731 2001.7
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Comparison of CDMA and FDMA/TDMA in non-GEO Satellite Systems Reviewed
N. Ichikawa, M. Katayama, H. Okada, T. Yamazato, and Akira Ogawa
IEEE International Conference on Communications page： 3167-3171 2001.6
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A MAP Receiver Based on Prediction Error Reviewed
S. Makido, T. Yamazato, H. Okada, M. Katayama, A. Ogawa
The Journal of the Institute of Television Engineers of Japan Vol. 55 ( 6 ) page： 886-893 2001.6
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New Analytical Model for the TCP Throughput in Wireless Environment Reviewed
K. Naito, H. Okada, T. Yamazato, M. Katayama, and A. Ogawa
IEEE Vehicular Technology Conference page： 2128-2132 2001.5
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A Design of Source Matched MAP Receiver for Image Transmission Reviewed
S. Makido, T. Yamazato, H. Okada, M. Katayama, and A. Ogawa
IEEE International Symposium on Circuit and Systems page： 136-139 2001.5
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Performance of an OFDM Communication Systemunder a Frequency and Time Dependent Power-Line Channel Reviewed
K. Sugimoto, M. Katayama, T. Yamazato, H. Okada
5th International Symposium on Power-line Communications and Its Applications page： 35-40 2001.4
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Generation of Sets of Sequences Suitable for MulticodeTransmission in Quasi-Synchronous CDMA Systems Reviewed
M. Saito, H. Okada, T. Yamazato, M. Katayama, and A. Ogawa
IEICE Transactions on Communications Vol. E84-B ( 3 ) page： 576-580 2001.3
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Study on TCP throughput with FEC and ARQ in a wireless link Reviewed
K. Naito, H. Okada, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. J84-A ( 1 ) page： 122-126 2001.1
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Throughput Performance of CDMA Unslotted ALOHA System with Successive Interference Cancellation considering Detection Error of Packet Existance Reviewed
Y. Tadokoro, H. Okada, M. Saito, T. Yamazato, M. Katayama, A. Ogawa
International Symposium on Information Theory and Its Applications page： 728-731 2000.11
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A New Diversity Reception and Decoding Scheme for Convolutional Encoded Signal Reviewed
W.Z. Wang, T. Yamazato, C. Zheng, H. Okada, M. Katayama, and A. Ogawa
International Symposium on Information Theory and Its Applications page： 964-967 2000.11
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New Analytical Model for the TCP Algorithms Over Wireless Links with Random Losses Reviewed
K. Naito, H. Okada, M. Saito, T. Yamazato, M.Katayama, and A. Ogawa
Mobile Multimedia Communications (MoMuC2000) page： 4B-4 1-6 2000.10
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Hierarchical Channel Structure to Improve Handover Performance of LEO Satellite Communication Systems Reviewed
T. Hara, M. Katayama, H. Okada, T. Yamazato, A. Ogawa
Third European Workshop on Mobile/Personal Satcoms page： 15-220 2000.9
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An OFDM System with Reduced Non-linear Effect Reviewed
M. Harada, T. Yamazato, H. Okada, M. Katayama, and A. Ogawa
IEEE Vehicular Technology Conference page： 1794-1798 2000.9
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Application of MMSE Multi-user Detection to CDMA Unslotted ALOHA System Reviewed
H. Okada, P. M. Grant, I. W. Band, A. Ogawa
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 529-533 2000.9
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Performance Improvements applying an Adaptive Array Antenna at both the Base and Mobile Stations in Cellular CDMA Reviewed
Youssef R. Senhaji, H. Okada, T. Yamazato, M. Katayama and A. Ogawa
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication page： 982-986 1999.9
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Throughput Improvement of a Dual-Class Multi-code CDMA ALOHA System with Modified Channel Load Sensing Protocol Reviewed
A. Sandouk, H. Okada, T. Yamazato, M. Katayama, and A. Ogawa
IEEE International Conference on Communications page： 1079-1083 1999.6
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CDMA Unslotted ALOHA Systems with Finite Buffers Reviewed
H. Okada, T. Yamazato, M. Katayama and A. Ogawa
IEEE International Conference on Universal Personal Communications page： 1143-1147 1998.10
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Queueing Analysis of CDMA Unslotted ALOHA Systems with Finite Buffers Reviewed
H. Okada, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. E81-A ( 10 ) page： 2083-2091 1998.10
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Access Control Techniques for CDMA ALOHA Reviewed
T. Yamazato, H. Okada,M. Katayama and A. Ogawa
IEEE Fifth International Symposium on Spread Spectrum Techniques & Applications page： 293-297 1998.9
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CDMA Slotted ALOHA System with Finite Buffers Reviewed
H. Okada, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. E81-A ( 7 ) page： 1473-1478 1998.7
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Throughput Analysis for CDMA Unslotted ALOHA Systems with Finite Population Assumption Reviewed
H. Okada, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. J81-A ( 7 ) page： 1089-1092 1998.7
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Queueing Analysis of CDMA Slotted ALOHA Systems with Finite Buffer and Finite Population Assumptions Reviewed
H. Okada, T. Yamazato, M. Katayama and A. Ogawa
IEEE International Conference on Communications page： 407-411 1998.6
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Throughput Improvement of CDMA Slotted ALOHA System Reviewed
M. Saito, H. Okada, T. Sato, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Communications Vol. E80-B ( 1 ) page： 74-80 1997.1
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CDMA ALOHA Systems with Modified Channel Load Sensing Protocol for Satellite Communications Reviewed
H. Okada, M. Saito, T. Sato, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. E79-A ( 12 ) page： 2035-2042 1996.12
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Performance Evaluation of CDMA ALOHA Systems with Modified Channel Load Sensing Protocol Reviewed
H. Okada, M. Saito, T. Sato, T. Yamazato, M. Katayama and A. Ogawa
IEEE Global Telecommunications Conference page： 1291-1295 1996.11
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Throughput Improvemnt on CDMA Slotted ALOHA Systems by Modified Channel Load Sensing Protocol Reviewed
M. Saito, H. Okada, T. Sato, T. Yamazato, M. Katayama and A. Ogawa
7th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications page： 103-107 1996.10
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Throughput of CDMA Unslotted-ALOHA System in Cellular Environment Reviewed
A. Ogawa, T. Yamazato, K. Nishida, H. Okada, T. Sato and M. Katayama
Japan-Canada International Workshop on Multimedia Wireless Communications and Computing page： 23-24 1996.9
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Performance Degradation due to the Access Timing Delay on CDMA Unslotted ALOHA with Channel Load Sensing Reviewed
T. Sato, H. Okada, T. Yamazato, M. Katayama and A. Ogawa
5th IEEE International Conference on Universal Personal Communications page： 111-114 1996.9
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Effects of the Access Timing Delay on CDMA Unslotted ALOHA with Channle Load Sensing Reviewed
T. Sato, H. Okada, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Communications Vol. E79-B ( 9 ) page： 1339-1345 1996.9
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A Novel Access Control Method for CDMA Unslotted ALOHA Systems Reviewed
H. Okada, T. Sato, T. Yamazato, M. Katayama and A. Ogawa
The 2nd International Workshop on Multi-Dimensional Mobile Communications page： 391-395 1996.7
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CDMA Unslotted ALOHA Systems with Packet Retransmission Control Reviewed
H. Okada, T. Sato, T. Yamazato, M. Katayama, A. Ogawa
IEICE Transaction on Fundamentals Vol. E79-A ( 7 ) page： 1004 - 1010 1996.7
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Throughput Analysis of DS/SSMA Unslotted Aloha with Fixed Packet Length Reviewed
T. Sato, H. Okada, T. Yamazato,M. Katayama, A. Ogawa
IEEE Journal on Selected Areas in Communications Vol. 14 ( 4 ) page： 750-756 1996.5
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Performance Analysis of CDMA ALOHA Reviewed
T. Yamazato, T. Sato, H. Okada, K. Nishida, M. Katayama and A. Ogawa
1995 International Symposium on Communications page： 434-441 1995.12
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Throughput and Delay analysis of DS/SSMA unslotted Aloha by non-perfect capture Reviewed
T. Yamazato, T. Sato, H. Okada, M. Katayama and A. Ogawa
4th IEEE International Conference on Universal Personal Communications page： 738-742 1995.11