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IEICE Trans

Fumio TAKAHATA

Periodic Spectrum Transmission for Single-Carrier Transmission Frequency-Domain Equalization
Fumiaki MAEHARA Satoshi GOTO Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/06/01
Vol. E90-B  No. 6  pp. 1407-1414
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrier (SC) transmission, frequency-domain equalization (FDE), even-numbered samples, frequency diversity, high-level modulation, 
 Summary | Full Text:PDF
Iterative Decision Feedback Channel Estimation Using Metrics Comparison for Burst Mode COFDM Transmission
Haruhito YOSHIDA Fumiaki MAEHARA Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3475-3478
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM, channel estimation, forward error correction (FEC), decision feedback, iterative channel estimation, 
 Summary | Full Text:PDF
Inter-Symbol Interference Suppression Scheme Using Even-Numbered Sub-Carriers for Fixed-Rate OFDM Systems
Fumiaki MAEHARA Fumihito SASAMORI Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/04/01
Vol. E87-B  No. 4  pp. 866-872
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
OFDM, multipath delay, inter-symbol interference, even-numbered sub-carrier, guard interval, 
 Summary | Full Text:PDF
Approximate Expression of BER Performance in DS-CDMA Systems over Multi-Path Fading Channels
Fumihito SASAMORI Shiro HANDA Fumiaki MAEHARA Fumio TAKAHATA Shinjiro OSHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/08/01
Vol. E86-B  No. 8  pp. 2523-2528
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
DS-CDMA, bit error rate, multi-path fading, Doppler frequency, Rician factor, 
 Summary | Full Text:PDF
Linear Predictive Maximal Ratio Combining Transmitter Diversity for OFDM-TDMA/TDD Systems
Fumiaki MAEHARA Fumihito SASAMORI Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 221-229
Type of Manuscript:  Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
OFDM, TDMA/TDD, transmitter diversity, maximal ratio combining, propagation prediction, 
 Summary | Full Text:PDF
A New Method of Demodulating Digital SSB Signals
Yoichi SAITO Takahiro YAMASAKI Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10  pp. 2255-2262
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
digital SSB, Hilbert filter, class-IV partial-response signaling, spectrum efficiency, power efficiency, 
 Summary | Full Text:PDF
Theoretical Derivation Method of Bit Error Rate in TDMA/TDD Transmitter Diversity under Cochannel Interference
Fumiaki MAEHARA Fumihito SASAMORI Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/03/01
Vol. E85-B  No. 3  pp. 663-666
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
microcellular mobile communications, bit error rate (BER), cochannel interference, TDMA/TDD transmitter diversity, 
 Summary | Full Text:PDF
New Derivation Method of BPSK Bit Error Rate Performance in Cochannel Interference
Fumiaki MAEHARA Tomoaki SAITO Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2701-2704
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
bit error rate (BER), eye pattern, BPSK, cochannel interference (CCI), 
 Summary | Full Text:PDF
A Transmitter Diversity with Desired Signal Power Selection Using Matched Filter
Fumiaki MAEHARA Fumihito SASAMORI Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/02/01
Vol. E84-B  No. 2  pp. 255-262
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
digital land mobile communications, transmitter diversity, cochannel interference (CCI), desired signal power, matched filter, 
 Summary | Full Text:PDF
Theoretical and Approximate Derivation of Bit Error Rate in DS-CDMA Systems under Rician Fading Environment
Fumihito SASAMORI Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/12/25
Vol. E82-A  No. 12  pp. 2660-2668
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
DS/CDMA, bit error rate, frequency non-selective fading, Rician fading, 
 Summary | Full Text:PDF
Approximation Method for Deriving Transmission Efficiency in Direct-Sequence Spread ALOHA Communications System Using a Unified Spread Code
Tohru KIKUTA Fumihito SASAMORI Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2500-2508
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
direct-sequence slotted spread ALOHA, approximation, packet collision, probability of packet success, throughput, 
 Summary | Full Text:PDF
Key Aspects and Technologies of Satellite Communications toward Multimedia Era
Fumio TAKAHATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/01/25
Vol. E80-B  No. 1  pp. 3-7
Type of Manuscript:  INVITED PAPER (Special Issue on Advances in Satellite Communications toward Multimedia Era)
Category: 
Keyword: 
multimedia satellite communications, development objectives, onboard processing, networking, 
 Summary | Full Text:PDF
Field Trial and Performance of Land Mobile Message Communications Using Ku-Band Satellite
Fumio TAKAHATA Yoh HOSHINO Toshiaki BABA Hiromi KOMATSU Masato OKUDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/02/25
Vol. E76-B  No. 2  pp. 120-130
Type of Manuscript:  Special Section PAPER (Special Issue on Land Mobile/Portable Propagation)
Category: 
Keyword: 
land mobile, message communications, Ku-band satellite, OmniTRACS system, field trial, 
 Summary | Full Text:PDF
Theory and Performance of Frequency Assignment Schemes for Carriers with Different Bandwidths under Demand Assignment SCPC/FDMA Operation
Kenichiro CHIBA Fumio TAKAHATA Mitsuo NOHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/06/25
Vol. E75-B  No. 6  pp. 476-486
Type of Manuscript:  Special Section PAPER (Special Issue on Communication Theory)
Category: 
Keyword: 
satellite communications, frequency assignment, multiple bandwidth carriers, demand assignment, 
 Summary | Full Text:PDF