Shoichiro YAMASAKI


Wireless Packet Communications Protected by Secret Sharing and Vector Coding
Shoichiro YAMASAKI Tomoko K. MATSUSHIMA Shinichiro MIYAZAKI Kotoku OMURA Hirokazu TANAKA 
Publication:   
Publication Date: 2017/12/01
Vol. E100-A  No. 12  pp. 2680-2690
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory and Systems
Keyword: 
secret sharingphysical layer securitymulti-antenna transmissionvector codingpacket communications
 Summary | Full Text:PDF(2.1MB)

A Study on Multi-User Interference Cancellers for Synchronous Optical CDMA Systems — Decision Distance and Bit Error Rate —
Tomoko K. MATSUSHIMA Masaki KAKUYAMA Yuya MURATA Yasuaki TERAMACHI Shoichiro YAMASAKI 
Publication:   
Publication Date: 2017/10/01
Vol. E100-A  No. 10  pp. 2135-2145
Type of Manuscript:  PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
optical CDMAmodified prime sequence code (MPSC)multi-user interference (MUI)interference cancellerdecision distance
 Summary | Full Text:PDF(1.9MB)

Performance Improvement of Error-Resilient 3D DWT Video Transmission Using Invertible Codes
Kotoku OMURA Shoichiro YAMASAKI Tomoko K. MATSUSHIMA Hirokazu TANAKA Miki HASEYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/12/01
Vol. E99-A  No. 12  pp. 2256-2265
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Video Coding
Keyword: 
3D DWT video codingerror-resilient video codingerror concealmentReed-Solomon codes
 Summary | Full Text:PDF(4.2MB)

A Security Enhancement Technique for Wireless Communications Using Secret Sharing and Physical Layer Secrecy Transmission
Shoichiro YAMASAKI Tomoko K. MATSUSHIMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/04/01
Vol. E99-D  No. 4  pp. 830-838
Type of Manuscript:  Special Section PAPER (Special Section on Information and Communication System Security)
Category: Network security
Keyword: 
secret sharingphysical layer securitymulti-antenna transmissionReed-Solomon codes
 Summary | Full Text:PDF(1.6MB)

Single-Carrier Transmission Using Overlap Frequency Domain Equalizing and Coherent Averaging
Shinichiro MIYAZAKI Shoichiro YAMASAKI Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/11/01
Vol. E94-A  No. 11  pp. 2169-2177
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory and Signals
Keyword: 
single-carrier transmissionfrequency-domain equalizationmultipath channel
 Summary | Full Text:PDF(1.9MB)

Performance of Adaptive Trellis Coded Modulation Applied to MC-CDMA with Bi-orthogonal Keying
Hirokazu TANAKA Shoichiro YAMASAKI Miki HASEYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/11/01
Vol. E92-A  No. 11  pp. 2837-2843
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Communication Theory and Systems
Keyword: 
multi-carrier CDMAbi-orthogonal modulationReed-Solomon codeadaptive modulation and codingtrellis coded modulation
 Summary | Full Text:PDF(1.5MB)

Performance of Reed-Solomon Coded MC-DS-CDMA with Bi-orthogonal Modulation
Hirokazu TANAKA Kyung Woon JANG Shoichiro YAMASAKI Miki HASEYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/10/01
Vol. E92-A  No. 10  pp. 2600-2608
Type of Manuscript:  PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
multi-carrier CDMAOFDMbi-orthogonal modulationReed-Solomon codeerror correction code
 Summary | Full Text:PDF(1.7MB)

Performance of Pragmatic Trellis Coded ARQ with Cyclical Multicopy Retransmission for High Speed Mobile Satellite Communication System
Hirokazu TANAKA Shoichiro YAMASAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2099-2110
Type of Manuscript:  Special Section PAPER (Special Section on Recent Fundamental Technologies for Broadband Satellite Communications)
Category: 
Keyword: 
hybrid ARQtrellis coded modulationmobile satellite systemfading channel
 Summary | Full Text:PDF(1.6MB)

Performance of Mobile Multimedia System Applied to Trellis Coded Modulation on Rayleigh Fading Channel
Hirokazu TANAKA Shoichiro YAMASAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/10/25
Vol. E83-A  No. 10  pp. 1996-1999
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Mobile Communication
Keyword: 
trellis coded modulationreed-solomon codemobile multimediaMPEG-4
 Summary | Full Text:PDF(239.7KB)

Iterative Processing for Improving Decode Quality in Mobile Multimedia Communications
Shoichiro YAMASAKI Hirokazu TANAKA Atsushi ASANO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/10/25
Vol. E82-A  No. 10  pp. 2096-2104
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Systems
Keyword: 
mobile multimedia communicationsmultimedia multiplexingturbo decodingiterative soft-input/soft-output error correction decodingMPEG4
 Summary | Full Text:PDF(1.2MB)

Pragmatic Trellis Coded MPSK with Bandwidth Expansion on Rayleigh Fading Channel
Hirokazu TANAKA Shoichiro YAMASAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/12/25
Vol. E81-B  No. 12  pp. 2276-2282
Type of Manuscript:  Special Section PAPER (Special Issue on the Latest Development of Telecommunication Research)
Category: Transmission and Modulation
Keyword: 
Trellis coded modulationM-ary PSKbandwidth expansionpunctured code
 Summary | Full Text:PDF(471.6KB)

A Nonlinear Distortion Compensation on Layered Multicarrier Modulation Using Iterative Restoration
Shoichiro YAMASAKI Hirokazu TANAKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/10/25
Vol. E81-A  No. 10  pp. 2109-2116
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Spread Spectrum System
Keyword: 
multicarrier modulationOFDMnonlinear compensationiterative signal restoration
 Summary | Full Text:PDF(570.2KB)

A Corporate Communication Network Design Method Supported by Knowledge-Base
Emi KATO Shoichiro YAMASAKI Hiroshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/07/25
Vol. E75-B  No. 7  pp. 609-616
Type of Manuscript:  Special Section PAPER (Special Section on Network Planning)
Category: 
Keyword: 
network designknowledge-baseprivate networkcorporate networkoptimization
 Summary | Full Text:PDF(640.2KB)