Hiroki HARADA

PPW Curves: a C2 Interpolating Spline with Hyperbolic Blending of Rational Bézier Curves
Seung-Tak NOH Hiroki HARADA Xi YANG Tsukasa FUKUSATO Takeo IGARASHI 
Publication:   
Publication Date: 2022/10/01
Vol. E105-D  No. 10  pp. 1704-1711
Type of Manuscript:  Special Section PAPER (Special Section on Picture Coding and Image Media Processing)
Category: 
Keyword: 
parametric curves, C2 interpolating splines, hyperbolic blending, 
 Summary | Full Text:PDF
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 radio, spectrum sharing, cyclostationarity-based signal identification, test bed experiment, spatial channel emulator, 
 Summary | Full Text:PDF
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 sharing, capacity, system priorities, transmit power control, 
 Summary | Full Text:PDF
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-WPAN, modulated and modified Hermite pulse (MMHP), pulse shape hopping, asynchronous communication, interference reduction, 
 Summary | Full Text:PDF