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Paper Abstract and Keywords
Presentation 2008-03-07 15:50
Weight estimation method for multiuser detection in uplink asynchronous single-carrier systems
Koichi Ishihara, Yasushi Takatori, Kentaro Nishimori, Kazuyasu Okada (NTT) RCS2007-240
Abstract (in Japanese) (See Japanese page) 
(in English) Multiuser multiple-input multiple-output (MU-MIMO) has been attracted much attention for improving total system capacity. In multiuser MIMO, multiple wireless terminals (WTs) create a virtual large array antenna. Hence, effect obtained single user MIMO with a lot of antennas is expected even for simple WTs. We proposed a multiuser detection (MUD) method that can separate the signals regardless of the difference in the arrival timing between the WTs. In the proposed MUD, since the frequency-domain MUD is carried out with overlapping the FFT windows, signals can be detected with little performance degradation regardless of the difference in the arrival timing. However, accurate weight estimation becomes essential for the MUD. In this paper, we propose a weight estimation method regardless of the difference in the arrival timing between WTs and the effectiveness of the proposed method is confirmed by computer simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Multiuser detection / Multiuser MIMO / Single-carrier / Timing offset / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 518, RCS2007-240, pp. 323-328, March 2008.
Paper # RCS2007-240 
Date of Issue 2008-02-27 (RCS) 
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 RCS2007-240

Conference Information
Committee RCS AN MoNA SR WBS  
Conference Date 2008-03-05 - 2008-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2008-03-RCS-AN-MoMuC-SR-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Weight estimation method for multiuser detection in uplink asynchronous single-carrier systems 
Sub Title (in English)  
Keyword(1) Multiuser detection  
Keyword(2) Multiuser MIMO  
Keyword(3) Single-carrier  
Keyword(4) Timing offset  
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1st Author's Name Koichi Ishihara  
1st Author's Affiliation NTT (NTT)
2nd Author's Name Yasushi Takatori  
2nd Author's Affiliation NTT (NTT)
3rd Author's Name Kentaro Nishimori  
3rd Author's Affiliation NTT (NTT)
4th Author's Name Kazuyasu Okada  
4th Author's Affiliation NTT (NTT)
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Speaker Author-1 
Date Time 2008-03-07 15:50:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2007-240 
Volume (vol) vol.107 
Number (no) no.518 
Page pp.323-328 
#Pages 6 
Date of Issue 2008-02-27 (RCS) 

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