Hiroki HARADA


Development and Experimental Evaluation of Cyclostationarity-Based Signal Identification Equipment for Cognitive Radios
Hiroki HARADA Hiromasa FUJII Shunji MIURA Hidetoshi KAYAMA Yoshiki OKANO Tetsuro IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1100-1108
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
cognitive radiospectrum sharingcyclostationarity-based signal identificationtest bed experimentspatial channel emulator
 Summary | Full Text:PDF(2.3MB)

Achievable Capacity of Closed/Open-Access Cognitive Radio Systems Coexisting with a Macro Cellular Systems
Hiromasa FUJII Hiroki HARADA Shunji MIURA Hidetoshi KAYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1190-1197
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
spectrum sharingcapacitysystem prioritiestransmit power control
 Summary | Full Text:PDF(1.2MB)

Interference Reduction Using a Novel Pulse Set for UWB-CDMA Systems
Hiroki HARADA Ryuji KOHNO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/11/01
Vol. E89-A  No. 11  pp. 3050-3058
Type of Manuscript:  Special Section PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
UWB-WPANmodulated and modified Hermite pulse (MMHP)pulse shape hoppingasynchronous communicationinterference reduction
 Summary | Full Text:PDF(1.5MB)