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Paper Abstract and Keywords
Presentation 2011-09-29 15:30
One-Bit LDPC Message Passing Decoding Algorithm Based on Maximization of Mutual Information
Zou Sheng (Univ. of Science and Tech. of China), Brian Kurkoski (Univ. of Electro-Comm.) IT2011-27
Abstract (in Japanese) (See Japanese page) 
(in English) We propose an discrete message passing decoding algorithm for Low-Density Parity-Check(LDPC) codes under Additive White Gaussian Noise (AWGN) channel assumption. The message-passing decoding map is derived by using an optimum quantizer that maximizes mutual information, using the technique of density evolution. We focus on the case of 1-bit messages The new algorithm has comparable error rate compared with the lowest error rate given by the extensively studied group of Weighted Bit-Flipping(WBP) algorithms. In addition, the new algorithm has very low complexity.
Keyword (in Japanese) (See Japanese page) 
(in English) LDPC / message-passing decoding / mutual information / / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 220, IT2011-27, pp. 21-25, Sept. 2011.
Paper # IT2011-27 
Date of Issue 2011-09-22 (IT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 IT  
Conference Date 2011-09-29 - 2011-09-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IT 
Conference Code 2011-09-IT 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) One-Bit LDPC Message Passing Decoding Algorithm Based on Maximization of Mutual Information 
Sub Title (in English)  
Keyword(1) LDPC  
Keyword(2) message-passing decoding  
Keyword(3) mutual information  
1st Author's Name Zou Sheng  
1st Author's Affiliation University of Science and Technology of China (Univ. of Science and Tech. of China)
2nd Author's Name Brian Kurkoski  
2nd Author's Affiliation University of Electro-Communications (Univ. of Electro-Comm.)
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Date Time 2011-09-29 15:30:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2011-27 
Volume (vol) vol.111 
Number (no) no.220 
Page pp.21-25 
Date of Issue 2011-09-22 (IT) 

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