Keiichi MIZUTANI


IEEE 802.15.4g Based Wi-SUN Communication Systems
Hiroshi HARADA Keiichi MIZUTANI Jun FUJIWARA Kentaro MOCHIZUKI Kentaro OBATA Ryota OKUMURA 
Publication:   
Publication Date: 2017/07/01
Vol. E100-B  No. 7  pp. 1032-1043
Type of Manuscript:  INVITED PAPER (Special Section on Smart Radio and Its Applications in Conjunction with Main Topics of SmartCom)
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
IEEE 802.15.4gWi-SUNmobile communicationsensor networksmart utility network
 Summary | Full Text:PDF(4.5MB)

Time-Domain Windowing Design for IEEE 802.11af Based TVWS-WLAN Systems to Suppress Out-of-Band Emission
Keiichi MIZUTANI Zhou LAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/04/01
Vol. E97-B  No. 4  pp. 875-885
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
TV white spaces (TVWS)IEEE 802.11afOFDMtime-domain windowingdigital convolution filterspectrum mask
 Summary | Full Text:PDF(2.7MB)

IEEE 802.11af TVWS-WLAN with Partial Subcarrier System for Effective TVWS Utilization
Keiichi MIZUTANI Zhou LAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/04/01
Vol. E97-B  No. 4  pp. 886-895
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
TV white spaces (TVWS)IEEE 802.11afOFDMpartial subcarrier system
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Prototype Hardware for TDD Two-Way Multi-Hop Relay Network Using MIMO Network Coding
Keiichi MIZUTANI Takehiro MIYAMOTO Kei SAKAGUCHI Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/05/01
Vol. E95-B  No. 5  pp. 1738-1750
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
TDDMIMOtwo-way multi-hop relay networkMIMO network codingnetwork synchronizationprototype hardware950 MHz band
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Performance Analysis of MIMO Relay Network via Propagation Measurement in L-Shaped Corridor Environment
Namzilp LERTWIRAM Gia Khanh TRAN Keiichi MIZUTANI Kei SAKAGUCHI Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1345-1356
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
MIMO relay networkpropagation measurementtwo-way relaycooperative relayrelay location
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Complexity Suppression of Neural Networks for PAPR Reduction of OFDM Signal
Masaya OHTA Keiichi MIZUTANI Katsumi YAMASHITA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/09/01
Vol. E93-A  No. 9  pp. 1704-1708
Type of Manuscript:  LETTER
Category: Spread Spectrum Technologies and Applications
Keyword: 
OFDMpeak-to-average power ratio (PAPR)hopfield neural network
 Summary | Full Text:PDF(612.5KB)