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Paper Abstract and Keywords
Presentation 2010-07-21 10:25
A Multi-User MIMO System in Time-Varying Environments
Huu Phu Bui (Hochiminh City Univ. of Natural Sciences), Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ.) AP2010-39
Abstract (in Japanese) (See Japanese page) 
(in English) A multi-user MIMO system which simultaneously accommodates multiple users uses a block diagonalization scheme to suppress inter-user interference. Also, it can use an eigenbeam-space division multiplexing technique for efficient transmission. However, in time-varying environments, we may have performance degradation because of a channel change during the time interval between multi-user MIMO parameter determination and actual transmission. In this paper, on the basis of time-varying indoor measurements, we show Doppler spectra and average bit error rates (BERs). We also show that time-varying channels seriously degrade the BER performance.
Keyword (in Japanese) (See Japanese page) 
(in English) Multi-user MIMO / Block diagonalization / Eigenbeam-space division multiplexing / Time-varying channel / Doppler spectrum / Propagation measurement / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 135, AP2010-39, pp. 7-12, July 2010.
Paper # AP2010-39 
Date of Issue 2010-07-14 (AP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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)
Download PDF AP2010-39

Conference Information
Committee AP SAT  
Conference Date 2010-07-21 - 2010-07-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Kitami Inst. Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP, SAT, Organized Session 
Paper Information
Registration To AP 
Conference Code 2010-07-AP-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Multi-User MIMO System in Time-Varying Environments 
Sub Title (in English)  
Keyword(1) Multi-user MIMO  
Keyword(2) Block diagonalization  
Keyword(3) Eigenbeam-space division multiplexing  
Keyword(4) Time-varying channel  
Keyword(5) Doppler spectrum  
Keyword(6) Propagation measurement  
Keyword(7)  
Keyword(8)  
1st Author's Name Huu Phu Bui  
1st Author's Affiliation Hochiminh City University of Natural Sciences (Hochiminh City Univ. of Natural Sciences)
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-2 
Date Time 2010-07-21 10:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2010-39 
Volume (vol) vol.110 
Number (no) no.135 
Page pp.7-12 
#Pages 6 
Date of Issue 2010-07-14 (AP) 

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