Hiromasa FUJII


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
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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)

An Iterative Peak Power Reduction Method with Adaptive Intermediary Over-Sampling for Wireless OFDMA Systems
Kazuhiko FUJIMOTO Shigeru TOMISATO Masaharu HATA Hiromasa FUJII 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 576-579
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM transmissionPAPROFDMAiterative processing
 Summary | Full Text:PDF(548.7KB)

Capacity and Outage Rate of OFDMA Cellular System with Fractional Frequency Reuse
Hiromasa FUJII Hitoshi YOSHINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/03/01
Vol. E93-B  No. 3  pp. 670-678
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
OFDMAfractional frequency reusecapacityoutageanalysisone-cell frequency reuse
 Summary | Full Text:PDF(1.2MB)

Spectrum Sharing by Adaptive Transmit Power Control for Low Priority Systems and Achievable Capacity
Hiromasa FUJII Hitoshi YOSHINO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/08/01
Vol. E92-B  No. 8  pp. 2568-2576
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
spectrum sharingcapacitysystem prioritiestransmit power control
 Summary | Full Text:PDF(1.2MB)

Peak Reduction Improvement in Iterative Clipping and Filtering with a Graded Band-Limiting Filter for OFDM Transmission
Toshiyuki MATSUDA Shigeru TOMISATO Masaharu HATA Hiromasa FUJII Junichiro HAGIWARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/07/01
Vol. E90-A  No. 7  pp. 1362-1365
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
OFDM transmissionPAPRiterative signal processing
 Summary | Full Text:PDF(398.6KB)

Performance Enhancement of SC/S-MMSE Turbo Receiver for MIMO-SDM/OFDM Transmission
Tetsushi ABE Hiromasa FUJII Hirohito SUDA Shigeru TOMISATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/05/01
Vol. E88-B  No. 5  pp. 2110-2119
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMOSDMOFDMturbo receiverCRCinterference cancellation
 Summary | Full Text:PDF(1.3MB)

RP-Reconstructing ARP Strategy for Micro-Cellular Systems
Hiromasa FUJII Kouhei MIZUNO Takahiko SABA Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/05/25
Vol. E83-B  No. 5  pp. 1122-1127
Type of Manuscript:  PAPER
Category: Wireless Communication Switching
Keyword: 
microcellular systemsdynamic channel assignmentreuse partition
 Summary | Full Text:PDF(897.5KB)