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Paper Abstract and Keywords
Presentation 2015-01-23 14:10
A BP-based approach for M-QAM signal detection in a fully massive MIMO system
Tomoya Usami, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.) SIP2014-109 RCS2014-297
Abstract (in Japanese) (See Japanese page) 
(in English) With the rapid traffic growth, a massive multiple-input multiple-output (MIMO) system with an order of 100 elements has been discussed recently. Increasing the number of both transmit and receive antennas improves peak data rate and capacity, but requires the complexity proportional to at least the third power of the number of antenna elements to detect spatially-multiplexed signals in general. Thus, the implementation of a fully massive MIMO system becomes very difficult. To solve this problem, detection based on the belief propagation has been developed and studied. It has been shown that the belief propagation is implementable in the order of the second power of the number of elements and achieves very good BER performance in a QPSK modulated massive MIMO system. But it is essential to study a multi-level QAM modulated massive MIMO system in the viewpoint of peak throughput. In this paper, we apply the belief propagation to a 16-QAM modulated massive MIMO system and have shown that starting the process from error-tolerant bit nodes improves the BER performance.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / Spatial Multiplexing / Belief Propagation / Multi-level QAM / Node Selection / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 395, RCS2014-297, pp. 163-168, Jan. 2015.
Paper # RCS2014-297 
Date of Issue 2015-01-15 (SIP, 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)
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Conference Information
Committee SIP RCS  
Conference Date 2015-01-22 - 2015-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Okayama Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing for Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2015-01-SIP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A BP-based approach for M-QAM signal detection in a fully massive MIMO system 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) Spatial Multiplexing  
Keyword(3) Belief Propagation  
Keyword(4) Multi-level QAM  
Keyword(5) Node Selection  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Tomoya Usami  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Toshihiko Nishimura  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Takeo Ohgane  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Yasutaka Ogawa  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2015-01-23 14:10:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # SIP2014-109, RCS2014-297 
Volume (vol) vol.114 
Number (no) no.394(SIP), no.395(RCS) 
Page pp.163-168 
#Pages 6 
Date of Issue 2015-01-15 (SIP, RCS) 

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