Toshiharu KOJIMA


An Improved Quantization Scheme for Lattice-Reduction Aided MIMO Detection Based on Gram-Schmidt Orthogonalization
Wei HOU Tadashi FUJINO Toshiharu KOJIMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/12/01
Vol. E96-A  No. 12  pp. 2405-2414
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Theory
Keyword: 
Gram-Schmidt orthogonalizationLLL algorithmlattice-reductionMIMOquantization error
 Summary | Full Text:PDF

An Improved Pilot Symbol Assisted Coherent Detection Scheme for Rician Fading Channels
Takashi ASAHARA Toshiharu KOJIMA Makoto MIYAKE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/12/25
Vol. E82-B  No. 12  pp. 2041-2048
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia Mobile Communication Systems)
Category: 
Keyword: 
mobile satellite communicationpilot symbolcoherent detectionRician fading
 Summary | Full Text:PDF

Carrier Slip Compensating Time Diversity Scheme for Helicopter Satellite Communication Systems
Tatsuya UCHIKI Toshiharu KOJIMA Makoto MIYAKE Tadashi FUJINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/12/25
Vol. E81-B  No. 12  pp. 2311-2317
Type of Manuscript:  Special Section PAPER (Special Issue on the Latest Development of Telecommunication Research)
Category: Wireless Communication Systems
Keyword: 
helicopter satellite communicationtime diversitycarrier slip compensationcoherent phase shift keying
 Summary | Full Text:PDF

Performance of Soft Decision Digital Matched Filter in Direct-Sequence Spread-Spectrum Communication Systems
Nobuhisa KATAOKA Toshiharu KOJIMA Makoto MIYAKE Tadashi FUJINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1991/05/25
Vol. E74-B  No. 5  pp. 1115-1122
Type of Manuscript:  Special Section PAPER (Special Issue on Spread Spectrum Techniques and Its Applications)
Category: 
Keyword: 
 Summary | Full Text:PDF