Akihito KATO


A Study on Optimum Weights for Delay Transmit Diversity for DS-CDMA in a Frequency Non-selective Fading Channel
Akihito KATOH Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/04/01
Vol. E87-B  No. 4  pp. 838-848
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
transmit diversitytransmit power controlfadingDS-CDMARake combining
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On Received Signal Power Distribution of Wideband Signals in a Frequency-Selective Rayleigh Fading Channel
Fumiyuki ADACHI Akihito KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/11/01
Vol. E86-B  No. 11  pp. 3340-3343
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
signal power distributionfrequency-selective channelNakagami m-fadingmobile communication
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A Weighted Delay Transmit Diversity System Combined with Antenna Diversity Reception for DS-CDMA Mobile Radio
Akihito KATO Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/07/01
Vol. E86-B  No. 7  pp. 2211-2215
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
transmit diversity (TD)transmit power controlfadingDS-CDMARake combining
 Summary | Full Text:PDF(599.1KB)

Modeling of DS-CDMA Transmit Power Control in a Fast Fading Channel with Antenna Diversity
Akihito KATOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Vol. E86-B  No. 2  pp. 769-776
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
DS-CDMAtransmit power controlfadingmobile radio communications system
 Summary | Full Text:PDF(1.1MB)

Effect of Transmit Power Limitation in Power Controlled DS-CDMA
Akihito KATOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Vol. E86-B  No. 2  pp. 757-768
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
DS-CDMAtransmit power controlfading
 Summary | Full Text:PDF(1.2MB)

Joint Effect of Transmit Power Control and Antenna Diversity on Spectrum Efficiency of a Cellular System
Fumiyuki ADACHI Akihito KATOH Deepshikha GARG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/05/01
Vol. E85-B  No. 5  pp. 919-928
Type of Manuscript:  Special Section PAPER (Wireless Communications Issue)
Category: 
Keyword: 
transmit power controlantenna diversity receptioncellular systemspectrum efficiency
 Summary | Full Text:PDF(549.1KB)

Propagation Characteristics of 60-GHz Millimeter Waves for ITS Inter-Vehicle Communications
Akihito KATO Katsuyoshi SATO Masayuki FUJISE Shigeru KAWAKAMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2530-2539
Type of Manuscript:  Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category: Propagation
Keyword: 
propagationmillimeter waveinter-vehicle communicationtwo-ray propagation modelprobability distribution
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A Four-Sector Shaped-Beam Antenna for 60-GHz Wireless LANs
Yasushi MURAKAMI Hisao IWASAKI Tooru KIJIMA Akihito KATO Takeshi MANABE Toshio IHARA Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/07/25
Vol. E82-C  No. 7  pp. 1293-1300
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Systems
Keyword: 
microwave and millimeter wave technologymicrostrip antennashaped beammulti-sector antennawireless LANs
 Summary | Full Text:PDF(1.5MB)