Hiroshi HARADA


Development of Cognitive Radio Terminal for TV Band White-Space Utilization and Expectation on Tunable Filter
Takeshi MATSUMURA(0905755) National Institute of Information and Communications Technologyï¼›Hiroshi HARADA(9305173) National Institute of Information and Communications Technology 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2013/06/01
Vol. J96-A  No. 6  pp. 292-300
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Advances in Frequency Generation and Control Devices)
Category: 
Keyword: 
cognitive radio technologyspectrum sharingTV band white-spaceRF front-endtunable filter
 Summary | Full Text(in Japanese):PDF(1.1MB)

Research and Development on Elemental Technologies for Cognitive Radio Equipments
Hiroshi HARADA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2008/11/01
Vol. J91-B  No. 11  pp. 1320-1331
Type of Manuscript:  Special Section PAPER (Special Issue on Cognitive Radio for Ubiquitous Network Society)
Category: 
Keyword: 
cognitive radiodynamic spectrum accesssoftware defined radiodevicemultiband
 Summary | Full Text(in Japanese):PDF(4.2MB)

Si-RFICs for Multi-Band Multi-Mode Transceivers
Noriharu SUEMATSU Hiroshi HARADA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2008/11/01
Vol. J91-B  No. 11  pp. 1339-1350
Type of Manuscript:  Special Section PAPER (Special Issue on Cognitive Radio for Ubiquitous Network Society)
Category: 
Keyword: 
cognitive radioSiGe-MMICdirect coversionquadrature modulatorquadrature mixer
 Summary | Full Text(in Japanese):PDF(1.7MB)