Takeo OHGANE


A Study on Decision-Feedback Assisted Channel Tracking and Channel Prediction for IEEE802.16e Based OFDM System
Sang-Woo KIM  Toshihiko NISHIMURA  Takeo OHGANE  Yasutaka OGAWA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2009/01/01
Vol. J92-B  No. 1  pp. 185-195
Type of Manuscript: Special Section PAPER (Special Issue on Student Research for Future Communication Technology)
Category: 
Keyword: 
IEEE802.16eOFDMfast fadingchannel trackingdecision feedbackchannel predictionlinear prediction
  Summary |  Full Text(in Japanese):PDF (615.7KB)

Frequency Offset Estimation and Transmit/Receive Weight Control in an Uplink Channel Using a Virtual MIMO System
Yuta SAITO  Yasutaka OGAWA  Takeo OHGANE  Toshihiko NISHIMURA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2008/09/01
Vol. J91-B  No. 9  pp. 940-947
Type of Manuscript: Special Section PAPER (Special Issue on Emerging Technologies of Antennas and Propagation Supporting High-speed Wireless Communications)
Category: 
Keyword: 
cooperative communicationvirtual MIMOuplink channelchannel estimationfrequency offset
  Summary |  Full Text(in Japanese):PDF (493.7KB)

Comparison of Reduction Schemes of Feedback Amount in MIMO-OFDM Eigenbeam-Space Division Multiplexing Systems
Yusuke OHWATARI  Yasutaka OGAWA  Toshihiko NISHIMURA  Takeo OHGANE 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2007/09/01
Vol. J90-B  No. 9  pp. 885-895
Type of Manuscript: Special Section PAPER (Special Issue on Antenna and Propagation Technologies for realizing the ubiquitous network society)
Category: 
Keyword: 
MIMO systemeigenbeam-space division multiplexingOFDMamount of feedback informationcodebook
  Summary |  Full Text(in Japanese):PDF (1.2MB)

Reduction of the Amount of CSI Feedback in MIMO-OFDM Eigenbeam-Space Division Multiplexing Systems
Yusuke OHWATARI  Yasutaka OGAWA  Toshihiko NISHIMURA  Takeo OHGANE 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2006/09/01
Vol. J89-B  No. 9  pp. 1765-1775
Type of Manuscript: Special Section PAPER (Special Issue on Design, Analysis and Measurement Techniques in Antennas and Propagation to Meet Expanding Applications of Radio Systems)
Category: 
Keyword: 
MIMO systemeigenbeam-space division multiplexingOFDMamount of feedback information
  Summary |  Full Text(in Japanese):PDF (2.1MB)