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Paper Abstract and Keywords
Presentation 2010-09-22 15:45
Iterative Decoding Algorithm for LDPC Codes based on Difference Map Algorithm
Kazuhiro Fuwa, Tadashi Wadayama (NIT) IT2010-48
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a novel iterative decoding algorithm for LDPC codes based on the difference map algorithm.
The difference map algorithm is an optimization algorithm for finding a point in the intersection of a given two sets and
it is known to be a promising algorithm for hard combinatorial optimization problems such as protein folding.
The proposed algorithm includes a gradient descent process in order to search a codeword close to a received word.
Computer experiments have been done for verifying the decoding performance of the proposed algorithm.
Although the proposed algorithm gives larger block error probabilities than those of the belief propagation, the difference is fairly small.
Keyword (in Japanese) (See Japanese page) 
(in English) LDPC Code / Optimization / Gradient Descent Method / Difference Map Algorithm / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 205, IT2010-48, pp. 87-92, Sept. 2010.
Paper # IT2010-48 
Date of Issue 2010-09-14 (IT) 
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 IT2010-48

Conference Information
Committee IT  
Conference Date 2010-09-21 - 2010-09-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Gakuin University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IT 
Conference Code 2010-09-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Iterative Decoding Algorithm for LDPC Codes based on Difference Map Algorithm 
Sub Title (in English)  
Keyword(1) LDPC Code  
Keyword(2) Optimization  
Keyword(3) Gradient Descent Method  
Keyword(4) Difference Map Algorithm  
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1st Author's Name Kazuhiro Fuwa  
1st Author's Affiliation Nagoya Institute of Technology (NIT)
2nd Author's Name Tadashi Wadayama  
2nd Author's Affiliation Nagoya Institute of Technology (NIT)
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Speaker Author-1 
Date Time 2010-09-22 15:45:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2010-48 
Volume (vol) vol.110 
Number (no) no.205 
Page pp.87-92 
#Pages 6 
Date of Issue 2010-09-14 (IT) 

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