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Paper Abstract and Keywords
Presentation 2006-04-21 11:20
A Study on Reduction of the Amount of Channel State Information Feedback in MIMO-OFDM Eigenbeam-Space Division Multiplexing Systems
Yusuke Ohwatari, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ.) RCS2006-7
Abstract (in Japanese) (See Japanese page) 
(in English) MIMO space division multiplexing in an OFDM system (MIMO-OFDM) can achive high-data-rate transmission without additional frequency spectra. Furthermore, eigenbeam-space division multiplexing (E-SDM) which is also called the singular value decomposition (SVD) algorithm can provide maximum throughput in the MIMO channel when channel state information (CSI) is available at the transmitter. When the uplink and downlink channels are not reciprocal as in a FDD system, we need to feed back the CSI from the receiver to the transmitter. However, capacity is limited because CSI feedback is needed for each subcarrier in an OFDM system. This paper proposes the feedback of the time-domain channel estimated using the minimum mean square error method. The proposed method can reduce the amount of feedback information, and reveals better bit error rate performance than the other schemes.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO system / Eigenbeam-space division multiplexing / OFDM / Channel state information / Amount of feedback information / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 25, RCS2006-7, pp. 37-42, April 2006.
Paper # RCS2006-7 
Date of Issue 2006-04-14 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee RCS  
Conference Date 2006-04-21 - 2006-04-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. Nakanoshima Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2006-04-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Reduction of the Amount of Channel State Information Feedback in MIMO-OFDM Eigenbeam-Space Division Multiplexing Systems 
Sub Title (in English)  
Keyword(1) MIMO system  
Keyword(2) Eigenbeam-space division multiplexing  
Keyword(3) OFDM  
Keyword(4) Channel state information  
Keyword(5) Amount of feedback information  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yusuke Ohwatari  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Yasutaka Ogawa  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Toshihiko Nishimura  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Takeo Ohgane  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2006-04-21 11:20:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2006-7 
Volume (vol) vol.106 
Number (no) no.25 
Page pp.37-42 
#Pages
Date of Issue 2006-04-14 (RCS) 


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