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Paper Abstract and Keywords
Presentation 2011-12-12 09:25
A Computationally Efficient Early Stopping Method for DVB-S2 LDPC Decoder
Gwan Seok Jang (UST-ETRI), In Ki Lee, Dae Ig Chang, Deock Gil Oh (ETRI) SAT2011-40
Abstract (in Japanese) (See Japanese page) 
(in English) Satellite communication requires powerful forward error correction scheme because of long transmission delay. Thus, the low density parity check (LDPC) code is adopted for the forward error correction code in DVB-S2 standard. Because decoding process of LDPC code is based on the iterative soft decoding, it is critical fact for decoder to reduce the average number of iterations. Therefore we briefly introduce a conventional hard decision based early stopping method. We also introduce that the conventional early stopping method is combined with a horizontal shuffling scheduling (HSS) algorithm which is one of layered decoding scheme. However, the computational complexity of this conventional hard decision based method is still high, because this computes the early stopping criterion at the end of iterations. In this paper, we propose a computationally efficient early stopping method which computes the early stopping criterion at specific iterations. The simulation results show that the proposed early stopping method reduces the number of iterations of LDPC decoding algorithm. Furthermore, the computational complexity of proposed early stopping method is fewer than those of the conventional HD based early stopping method.
Keyword (in Japanese) (See Japanese page) 
(in English) Early stooping, LDPC / LDPC / Layered Decoding / Horizontal shuffling scheduling, / HSS / DVB-S2 / Satellite / Forward Error Correction code  
Reference Info. IEICE Tech. Rep., vol. 111, no. 336, SAT2011-40, pp. 7-12, Dec. 2011.
Paper # SAT2011-40 
Date of Issue 2011-12-05 (SAT) 
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 SAT2011-40

Conference Information
Committee SAT  
Conference Date 2011-12-12 - 2011-12-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) JC-SAT 2011 
Paper Information
Registration To SAT 
Conference Code 2011-12-SAT 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Computationally Efficient Early Stopping Method for DVB-S2 LDPC Decoder 
Sub Title (in English)  
Keyword(1) Early stooping, LDPC  
Keyword(2) LDPC  
Keyword(3) Layered Decoding  
Keyword(4) Horizontal shuffling scheduling,  
Keyword(5) HSS  
Keyword(6) DVB-S2  
Keyword(7) Satellite  
Keyword(8) Forward Error Correction code  
1st Author's Name Gwan Seok Jang  
1st Author's Affiliation University of science and technology (UST-ETRI)
2nd Author's Name In Ki Lee  
2nd Author's Affiliation Electronics and Telecommunications Research Institute (ETRI)
3rd Author's Name Dae Ig Chang  
3rd Author's Affiliation Electronics and Telecommunications Research Institute (ETRI)
4th Author's Name Deock Gil Oh  
4th Author's Affiliation Electronics and Telecommunications Research Institute (ETRI)
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Speaker Author-1 
Date Time 2011-12-12 09:25:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2011-40 
Volume (vol) vol.111 
Number (no) no.336 
Page pp.7-12 
#Pages 6 
Date of Issue 2011-12-05 (SAT) 

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