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Paper Abstract and Keywords
Presentation 2023-08-04 14:35
Performance Improvement of BP Decoding for Polar Codes through Factor Graph Permutation
Kohei Yoshida, Shan Lu, HIroshi Kamabe (Gifu Univ.) IT2023-29
Abstract (in Japanese) (See Japanese page) 
(in English) Polar codes have high error correction capabilities and are used in the control channel of 5G.
There are several decoding methods, one of which is Belief Propagation (BP) decoding.
BP decoding of polar codes involves calculating the likelihood on a factor graph.
A decoding method has been proposed that utilizes the characteristics of polar codes and uses graphs obtained by permuting parts of the factor graph.
It has been shown that the decoding performance improves by calculating the likelihood on graphs obtained by different permutations in each iteration of BP decoding.
In this draft, we apply the permutations to the subgraphs of the original factor graph and demonstrate through computer simulation that the decoding error rate improves.
Keyword (in Japanese) (See Japanese page) 
(in English) polar Code / belief propagation / factor graph / permutation / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 149, IT2023-29, pp. 86-91, Aug. 2023.
Paper # IT2023-29 
Date of Issue 2023-07-27 (IT) 
ISSN 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 IT2023-29

Conference Information
Committee IT  
Conference Date 2023-08-03 - 2023-08-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Shonan Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Freshman session, General 
Paper Information
Registration To IT 
Conference Code 2023-08-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance Improvement of BP Decoding for Polar Codes through Factor Graph Permutation 
Sub Title (in English)  
Keyword(1) polar Code  
Keyword(2) belief propagation  
Keyword(3) factor graph  
Keyword(4) permutation  
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1st Author's Name Kohei Yoshida  
1st Author's Affiliation GIfu University (Gifu Univ.)
2nd Author's Name Shan Lu  
2nd Author's Affiliation GIfu University (Gifu Univ.)
3rd Author's Name HIroshi Kamabe  
3rd Author's Affiliation GIfu University (Gifu Univ.)
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Speaker Author-1 
Date Time 2023-08-04 14:35:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2023-29 
Volume (vol) vol.123 
Number (no) no.149 
Page pp.86-91 
#Pages 6 
Date of Issue 2023-07-27 (IT) 

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