Kouji OHUCHI


Investigation into Symbol Error Rate of Multilevel Differential Polarization Shift Keying with Estimation of Inclined Polarization Axes
Kouji OHUCHI Yusuke ITO 
Publication:   
Publication Date: 2019/01/01
Vol. E102-A  No. 1  pp. 168-176
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
optical wireless communicationpolarization shift keyingmismatched polarization axes
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Theoretical Bit Error Rate in a Circular Polarized Optical OFDM System
Kazuo HAGIHARA Kouji OHUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/01/01
Vol. E99-A  No. 1  pp. 177-184
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
optical wireless communicationsOFDMcircular polarizationtheoretical analysis
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Extension of Parallel Combinatory Multicode Transmission with Constant-Amplitude Signaling and Its Theoretical Analysis
Tatsuya OHTA Kouji OHUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/02/01
Vol. E98-A  No. 2  pp. 528-536
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
parallel combinatory multicode transmissionconstant-amplitude signaling
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Circular Polarized Optical OFDM for Optical Wireless Communication
Kazuo HAGIHARA Kouji OHUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/02/01
Vol. E98-A  No. 2  pp. 520-527
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
optical wireless communicationOFDMcircular polarizationdegree of polarization
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Error Detection Performance of TPSK Using AMI Code in Multi-Hop Communications under Rayleigh Fading Environments
Kotoko YAMADA Kouji OHUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/12/01
Vol. E97-A  No. 12  pp. 2363-2365
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Communication Theory and Signals
Keyword: 
multi-hop networksAMI codeerror detection
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A Tracking System Using a Differential Detector for M-ary Bi-orthogonal Spread Spectrum Communication Systems
Junya KAWATA Kouji OHUCHI Hiromasa HABUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/12/01
Vol. E94-A  No. 12  pp. 2737-2745
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
M-ary bi-orthogonal SS systemdifferential detectorjittercanceler
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Performance Analysis of Source-Destination ARQ Scheme for Multiroute Coding in Wireless Multihop Networks
Hiraku OKADA Masato SAITO Tadahiro WADA Kouji OHUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/08/01
Vol. E90-B  No. 8  pp. 2111-2119
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
wireless multihop networkmultiple routesARQerror correcting
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Constant Amplitude Signaling for Parallel Combinatory Spread Spectrum Systems
Kouji OHUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/09/01
Vol. E89-A  No. 9  pp. 2329-2336
Type of Manuscript:  Special Section PAPER (Special Section on Sequence Design and its Application in Communications)
Category: 
Keyword: 
multicode transmissionparallel combinatory spread spectrumconstant amplitude transmissionnon-linear amplifier
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Bi-Orthogonal Modulation Systems Using Two Different Inner Sequences
Kouji OHUCHI Hiromasa HABUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 2976-2982
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
bi-orthogonal modulation systemframe synchronizationinner sequencecode shift keyingspectral efficiency
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A Theoretical Analysis of the Synchronous SS-CSC/CDMA System
Kouji OHUCHI Hiromasa HABUCHI Toshio TAKEBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/25
Vol. E81-A  No. 11  pp. 2291-2297
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
synchronous code division multiple access system spread spectrum communication with constrained spreading code system synchronizing spreading sequence
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An Analysis of Frame Synchronization Systems with Racing Counters and Majority Rule for M-ary/SS Communication Systems
Kouji OHUCHI Hiromasa HABUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2406-2412
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
M-ary spread spectrum communication systemM-ary/SSMA systemframe synchronization systemframing chipsracing counters
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Synchronization Method Using Several Synchronizing Chips for M-ary/SS Communication System
Kouji OHUCHI Hiromasa HABUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/25
Vol. E79-A  No. 12  pp. 1988-1993
Type of Manuscript:  Special Section PAPER (Special Secton on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrum communication systemM-ary/SS communication systemframe synchronization systemframing chipsracing counters
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A Study on the M–ary/SS Communication System Using a Frame Synchronization Method of PCM Communication Systems
Kouji OHUCHI Hiromasa HABUCHI Takaaki HASEGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/11/25
Vol. E77-A  No. 11  pp. 1942-1945
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1994 IEICE Spring Conference)
Category: 
Keyword: 
spread spectrum communication systemM–ary/SS communication systemPCM communication systemframe synchronization methodHadamard matrix
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