Atsushi NAKAGAKI


A Blind Adaptive Decorrelating Detector Using Spatial Signature Estimation
Yuji KIMURA Koji SHIBATA Takakazu SAKAI Atsushi NAKAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/10/01
Vol. E89-A  No. 10  pp. 2686-2689
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Spread Spectrum
Keyword: 
blind adaptive decorrelating detectorantenna arrayspatial and temporal signature
 Summary | Full Text:PDF(394.9KB)

A Two-Stage Approach with CMA and ILS to Blind Multiuser Detection
Go NAKANISHI Koji SHIBATA Takakazu SAKAI Atsushi NAKAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/10/01
Vol. E85-A  No. 10  pp. 2276-2279
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Spread Spectrum Technologies and Applications
Keyword: 
digital mobile communicationDS-CDMAblind multiuser detectionLCCM and ILS algorithms
 Summary | Full Text:PDF(452.2KB)

Blind Channel Estimation for Time-Varying Frequency-Selective Fading Channels
Koji SHIBATA Takuma YAGI Takakazu SAKAI Atsushi NAKAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/10/25
Vol. E83-A  No. 10  pp. 1904-1913
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Mobile Communication
Keyword: 
mobile communicationblind channel estimationfrequency-selective fadingfinite alphabet property
 Summary | Full Text:PDF(1.4MB)

Performance Analysis of Trellis-Coded Partial Response CPM over Rician Fast Fading Channels
Yoshikatsu AKITA Koji SHIBATA Takakazu SAKAI Atsushi NAKAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/10/25
Vol. E82-A  No. 10  pp. 2204-2207
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Communication Systems
Keyword: 
trellis-codingpartial response continuous phase modulationfast fading
 Summary | Full Text:PDF(360.5KB)