Takao HARA


Post-Compensation Technique for Carrier Superposed Satellite Channel Including Nonlinear TWTA
Takehiro ISHIGURO Takao HARA Minoru OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/11/01
Vol. E95-B  No. 11  pp. 3420-3427
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2011)
Category: 
Keyword: 
satellite communicationscarrier superposingTWTAnonlinearity compensation
 Summary | Full Text:PDF(1.4MB)

Adaptive Back-Off Nonlinearity Compensation for Interference Canceller in Carrier Super-Positioning Satellite Communications
Takao HARA Kenta KUBO Minoru OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/07/01
Vol. E94-B  No. 7  pp. 2022-2031
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
satellite communicationsfrequency reuseinterference cancellernonlinear TWTA
 Summary | Full Text:PDF(2.3MB)

Development of an Interference Canceller in Satellite Communications Using a Multi-Level Modulation with Superposed Transmission
Shoko KURODA Sho TANAKA Shigeo NAOI Yozo TAKEDA Ryusuke MIYAMOTO Takao HARA Minoru OKADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3354-3364
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
satallite communicationcarrier superposed transmissiondelay mesurementinterference canceller
 Summary | Full Text:PDF(984.8KB)

Large Code Set for Double User Capacity and Low PAPR Level in Multicarrier Systems
Khoirul ANWAR Masato SAITO Takao HARA Minoru OKADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/08/01
Vol. E91-A  No. 8  pp. 2183-2194
Type of Manuscript:  PAPER
Category: Communication Theory and Signals
Keyword: 
spreading codeOFDMMC-CDMApeak-to-average power ratio (PAPR)pseudo-orthogonal codeCarrier Interferometry (CI)
 Summary | Full Text:PDF(1.2MB)