Yuhei NAGAO


2.65Gbps Downlink Communications with Polarization Multiplexing in X-Band for Small Earth Observation Satellite
Tomoki KANEKO Noriyuki KAWANO Yuhei NAGAO Keishi MURAKAMI Hiromi WATANABE Makoto MITA Takahisa TOMODA Keiichi HIRAKO Seiko SHIRASAKA Shinichi NAKASUKA Hirobumi SAITO Akira HIROSE 
Publication:   
Publication Date: 2021/01/01
Vol. E104-B  No. 1  pp. 1-12
Type of Manuscript:  POSITION PAPER
Category: Satellite Communications
Keyword: 
satellite communicationssmall satelliteDVB-S2XCross Polarization Discrimination (XPD)polarization multiplexing
 Summary | Full Text:PDF

Multi-User MIMO Channel Emulator with Automatic Channel Sounding Feedback
Tran Thi Thao NGUYEN Leonardo LANANTE Yuhei NAGAO Hiroshi OCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/11/01
Vol. E99-A  No. 11  pp. 1918-1927
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: VLSI Design Technology and CAD
Keyword: 
MIMO channel emulatorFPGA implementationchannel state informationIEEE 802.11n/acfrequency selective fading
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Hardware Design of Multi Gbps RC4 Stream Cipher
Thi Hong TRAN Leonardo LANANTE, Jr. Yuhei NAGAO Hiroshi OCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/11/01
Vol. E96-A  No. 11  pp. 2120-2127
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: VLSI Design Technology and CAD
Keyword: 
RC4encryptionWEPWPAIEEE 802.11ac
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Novel THP Scheme with Minimum Noise Enhancement for Multi-User MIMO Systems
Shogo FUJITA Leonardo LANANTE Jr. Yuhei NAGAO Masayuki KUROSAKI Hiroshi OCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/06/01
Vol. E96-A  No. 6  pp. 1340-1347
Type of Manuscript:  Special Section PAPER (Special Section on Circuit, System, and Computer Technologies)
Category: 
Keyword: 
multi-user MIMOnon-linear precodingTomlinson Harashima precodingvector perturbation
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RTL Design of High-Speed Sorted QR Decomposition for MIMO Decoder
Yuya MIYAOKA Yuhei NAGAO Masayuki KUROSAKI Hiroshi OCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/11/01
Vol. E95-A  No. 11  pp. 1991-1997
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Communication Theory and Signals
Keyword: 
MIMOQRDsorted QRDRTL design
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A CUDA Implementation of DWT for JPEG 2000 Codec
Masayuki KUROSAKI Masateru MATSUO Yoshimitsu KUROKI Yuhei NAGAO Baiko SAI Hiroshi OCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/11/01
Vol. E94-A  No. 11  pp. 2358-2360
Type of Manuscript:  Special Section LETTER (Special Section on Smart Multimedia & Communication Systems)
Category: Image Processing
Keyword: 
CUDA4K digital cinemaJPEG 2000
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A Proposition of 600 Mbps WLAN-Like System with Low-Complexity MIMO Decoder for FPGA Implementation
Wahyul Amien SYAFEI Yuhei NAGAO Ryuta IMASHIOYA Masayuki KUROSAKI Baiko SAI Hiroshi OCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 491-498
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
FPGAGLSThigh throughputMIMORTL designWLAN
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A Study on Channel Estimation Using Two-Dimensional Interpolation Filters for Mobile Digital Terrestrial Television Broadcasting
Yusuke SAKAGUCHI Yuhei NAGAO Masayuki KUROSAKI Hiroshi OCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/04/01
Vol. E91-A  No. 4  pp. 1150-1154
Type of Manuscript:  Special Section LETTER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
digital terrestrial television broadcastingchannel estimationscattered pilottwo dimensional filter
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