Yasunori IWANAMI


Effective Design of Transmit Weights for Nonregenerative Multiuser MIMO Relay Downlink System
Cong LI Yasunori IWANAMI Ryota YAMADA Naoki OKAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/11/01
Vol. E95-A  No. 11  pp. 1894-1903
Type of Manuscript:  Special Section PAPER (Special Section on Signal Design and Its Applications in Communications)
Category: Mobile Information Network
Keyword: 
multiuser MIMOdirty paper codingrelay communicationachievable rate
 Summary | Full Text:PDF(1.6MB)

A Markov-Based Satellite-to-Ground Optical Channel Model and Its Effective Coding Scheme
Yoshitoshi YAMASHITA Eiji OKAMOTO Yasunori IWANAMI Yozo SHOJI Morio TOYOSHIMA Yoshihisa TAKAYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 254-262
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
optical satellite communicationoptical satellite-to-ground linkMarkov modelLDGM code
 Summary | Full Text:PDF(2.2MB)

An Effective Downlink Resource Allocation Scheme Based on MIMO-OFDMA-CDM in Cellular System
Yasuhiro FUWA Eiji OKAMOTO Yasunori IWANAMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3550-3558
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMA-CDMMIMOcellular systemresource allocationproportional fairness
 Summary | Full Text:PDF(2.4MB)

Effective Transmit Weight Design for DPC with Maximum Beam in Multiuser MIMO OFDM Downlink
Cong LI Yasunori IWANAMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/12/01
Vol. E94-A  No. 12  pp. 2710-2718
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
MU-MIMO OFDMinter-user interferenceparticle swarm optimizationdirty paper coding
 Summary | Full Text:PDF(789.9KB)

An Evaluation on Throughput Performance for Type II Hybrid-ARQ Using Non-binary Rate-Compatible-Punctured LDPC Codes
Takashi KOZAWA Yasunori IWANAMI Eiji OKAMOTO Ryota YAMADA Naoki OKAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/11/01
Vol. E93-A  No. 11  pp. 2089-2091
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
non-binary RCP LDPC codeType II Hybrid-ARQOFDMSymbol-LLR
 Summary | Full Text:PDF(315.2KB)

A Comparative Study on Time Domain Sequential Equalizer with MLD and MLSE Equalizer on MIMO Frequency Selective Channels
Satoshi NAKANOBU Yasunori IWANAMI Eiji OKAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/11/01
Vol. E93-B  No. 11  pp. 3197-3202
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
MIMOISI cancellerMLDMLSETime domain
 Summary | Full Text:PDF(732.7KB)

Application of Wavelet Packet Modulation to Mobile Communication
Eiji OKAMOTO Yasunori IWANAMI Tetsushi IKEGAMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/10/01
Vol. E87-A  No. 10  pp. 2684-2691
Type of Manuscript:  Special Section PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
wavelet packet modulationOFDMmultipath fadingmultimode transmission
 Summary | Full Text:PDF(674.6KB)

Turbo Equalization of GMSK Signals Using Noncoherent Frequency Detection
Tomoya OKADA Yasunori IWANAMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/03/01
Vol. E85-C  No. 3  pp. 473-479
Type of Manuscript:  Special Section PAPER (Special Issue on Signals, Systems and Electronics Technology)
Category: Digital Transmission
Keyword: 
GMSKISIlimiter-discriminator detectioniterative equalization
 Summary | Full Text:PDF(793.7KB)

Sequence Estimation for Digital FM
Yasunori IWANAMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/06/01
Vol. E84-B  No. 6  pp. 1613-1621
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
digital FMGMSKlimiter-discriminatorsequence estimationupper and lower bounds on BER
 Summary | Full Text:PDF(2.3MB)

Demodulation of CPFSK and GMSK Signals Using Digital Signal Processing DPLL with Sequence Estimator
Yasunori IWANAMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/01/01
Vol. E84-B  No. 1  pp. 26-35
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
analogue PLLDSP DPLLCPFSKGMSKBERFM demodulationsequence estimationviterbi equalizerdoppler shiftLEO
 Summary | Full Text:PDF(18.4MB)

A Design Method of PLL FM Demodulators Using a Quasi-Linear Model and Digital Simulation Techniques
Yasunori IWANAMI Tetsuo IKEDA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/12/25
Vol. E69-E  No. 12  pp. 1318-1329
Type of Manuscript:  PAPER
Category: Communication Systems and Communication Protocols
Keyword: 
 Summary | Full Text:PDF(745.3KB)