Faculty Profiles - YAMAZATO Takaya

Papers - YAMAZATO Takaya

Division display 1,421 - 1,440 of about 1,493 ／ All the affair displays >>

Performance analysis of DS/SSMA with error correcting code in Rayleigh fading channel Reviewed

T Yamazato, M Katayama, A Ogawa

GLOBECOM '95 - IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-3 page： 1121 - 1125 1995

Throughput analysis of DS/SS unslotted Aloha system with channel load sensing Reviewed

T Sato, H Okada, T Yamazato, M Katayama, A Ogawa

GLOBECOM '95 - IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-3 page： 1492 - 1496 1995

Influence of Crosscorrelation Properties on Simultaneous Transmission of Spread-Spectrum with Different Process Gains

M. Ichiba, M. Katayama, T. Yamazato and A. Ogawa

Technical Report of IEICE Vol. SST94 ( 64 ) page： 27-32 1994.12

A Study on Reception of M-ary/Spread-Spectrum Signals with Carrier Frequency Offset

T. Wada, T. Yamazato, M. Katayama and A. Ogawa

Symposium on Information Theory and Its Applications (SITA) Vol. SITA94 ( W44-5 ) page： 417-420 1994.11

Performance of DS/FH-CDMA Over Fading Channels with Near-Far Problem Reviewed

Y. Shinkaji, T. Yamazato, M. Katayama and A. Ogawa

IEICE Transaction on Communications Vol. 77-BII ( 11 ) page： 681-690 1994.11

Effect of Nonlinear Amplification on a Spread Spectrum Signal and Receiver Configurations Reviewed

M. Sawada, T. Yamazato, M. Katayama and A. Ogawa

IEICE Transaction on Fundamentals of Electronics, Communications and Computer Sciences Vol. 77-A ( 11 ) page： 1855-1862 1994.11

A New Acquisition Scheme for a DS/SS Signal with Frequency Offset

T. Wada, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. SST94 ( 50 ) page： 19-24 1994.10

LEO Satellite Communication Systems under Nonuniform Traffic Distribution with Spread-Slotted ALOHA

A. Jamalipour, M. Katayama, T. Yamazato and A. Ogawa

Technical Report of IEICE Vol. SAT94 ( 57 ) page： 15-21 1994.10

A-146 Spectral Efficiency of DS/SS/GMSK System with RAKE Reviewed

ISHIGURO Takayuki, KATAYAMA Masaaki, YAMAZATO Takaya, OGAWA Akira, MAEBARA Tsuneo

Vol. 1994 page： 146 1994.9

A Study on Reception of M-ary/Spread-Spectrum Signals with Carrier Frequency Offset

1994 IEICE Fall Conference Vol. A-145 1994.9

Spectral Efficiency of DS/SS/GMSK System with RAKE

T. Ishiguro, M. Katayama, T. Yamazato, A. Ogawa and T. Maebara

1994 IEICE Fall Conference Vol. A-146 page： - 1994.9

A Study on Reception of M-ary/Spread-Spectrum Signals with Carrier Frequency Offset

T. Wada, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. SST94-41 page： 51-56 1994.8

Multiple-Symbol Differential Detection on 16 Circular Shaped Signal Constellation Reviewed

Nakagawa Hitoshi, Yamazato Takaya, Katayama Masaaki, Ogawa Akira

IEICE technical report. Communication systems Vol. 94 ( 108 ) page： 55 - 60 1994.6

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electronics, Information and Communication Engineers

Multiple-symbol differential detection of 16DAPSK is attractive in the field of mobile communication because of its good error rate performance.In this paper,we study multiple-symbol differential detection on 16 circular shaped signal constellation(CSSS)whose minimum distance is larger than that of 16DAPSK signal constellation.Their error rate performances over an AWGN channel are compared by computer simulation.As a result,we show that error rate is affected by both Euclid distance and phase difference on signal constellation,and comparatively good error rate performance is obtained on(7,9)CSSS.

CiNii Research

Inter-chip interference rejection in DS/SS/GMSK applied RAKE

T. Ishiguro, M. Katayama, T. Yamazato, A. Ogawa and T. Maebara

Technical Report of IEICE Vol. SST94 ( 10 ) page： 31-36 1994.6

Throughput of Spread Unslotted Aloha in an Additive White Gaussian Noise Channel

T. Sato, K. Toshimitsu, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. SST94 ( 9 ) page： 25-30 1994.6

A Study of M-algorithm combined with Pre-Decoding

H. Nakamura, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. CS94 ( 37 ) page： 39275 1994.6

Multiple-Symbol Differential Detection on 16 Circular Shaped Signal Constellation

H. Nakagawa, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. RCS94 ( 36 ) page： 55-60 1994.6

A NOVEL SPREAD SLOTTED ALOHA SYSTEM WITH CHANNEL LOAD SENSING PROTOCOL Reviewed

TOSHIMITSU K, YAMAZATO T, KATAYAMA M, OGAWA A

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS Vol. 12 ( 4 ) page： 665 - 672 1994.5

A NOVEL SPREAD SLOTTED ALOHA SYSTEM WITH CHANNEL LOAD SENSING PROTOCOL Reviewed

K TOSHIMITSU, T YAMAZATO, M KATAYAMA, A OGAWA

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS Vol. 12 ( 4 ) page： 665 - 672 1994.5

Language：English Publishing type：Research paper (scientific journal) Publisher：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

This paper presents a noval spread slotted Aloha system with channel load sensing protocol (CLSP). CLSP is an effective scheme to improve the throughput performance in spread unslotted Aloha systems. In spread slotted Aloha systems, however, it does not make sense to utilize CLSP because the slot size is usually the same as the packet size. The slot size of the proposed system is set less than the packet size, thereby enabling us to apply CLSP and improving the throughput performance. Another feature of the proposed system is that the system is not likely affected by the time difference between channel load sensing and timing of packet access, which we call the access timing delay. Throughput performance of the proposed system is evaluated in the presence of the access timing delay and a significant increase of the throughput is shown compared with that of spread unslotted Aloha with CLSP.

DOI： 10.1109/49.286673

Web of Science

Scopus

researchmap

Acquisition of DS/SS Signal with Frequency Offset using Matched Filters

M. Mizutani, M. Katayama, T. Yamazato and A. Ogawa

Technical Report of IEICE Vol. SST93-109 page： 55-60 1994.3

　 PREV - NEXT 　

<YAMAZATO Takaya>

Papers - YAMAZATO Takaya