Takayuki NAGAYASU


Likelihood Estimation for Reduced-Complexity ML Detectors in a MIMO Spatial-Multiplexing System
Masatsugu HIGASHINAKA Katsuyuki MOTOYOSHI Akihiro OKAZAKI Takayuki NAGAYASU Hiroshi KUBO Akihiro SHIBUYA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/03/01
Vol. E91-B  No. 3  pp. 837-847
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMOsphere decodingQRD-M algorithmsoft-decision outputscomputational complexity
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A Co-channel Interference Cancellation Method Using Low Dimensional Sphere Decoding for MIMO Communication Systems
Masatsugu HIGASHINAKA Akihiro OKAZAKI Katsuyuki MOTOYOSHI Takayuki NAGAYASU Hiroshi KUBO Akihiro SHIBUYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/10/01
Vol. E89-A  No. 10  pp. 2526-2534
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
MIMOsphere decodingco-channel interferencecomputational complexity
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Frequency-Domain Equalization Incorporated with Frequency-Domain Redundancy for OFDM Systems
Akihiro OKAZAKI Katsuyuki MOTOYOSHI Masatsugu HIGASHINAKA Takayuki NAGAYASU Hiroshi KUBO Akihiro SHIBUYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/10/01
Vol. E89-A  No. 10  pp. 2549-2557
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
OFDMFEQISIICI
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A Soft-Output Viterbi Equalizer Employing Expanded Memory Length in a Trellis
Takayuki NAGAYASU Hiroshi KUBO Keishi MURAKAMI Tadashi FUJINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/02/25
Vol. E80-B  No. 2  pp. 381-385
Type of Manuscript:  LETTER
Category: Radio Communication
Keyword: 
soft-output Viterbi equalizerMAP algorithmViterbi algorithmsoft-decisionintersymbol interference
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