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Paper Abstract and Keywords
Presentation 2010-01-08 11:35
On a Soft-input Decoding Algorithm of Concatenated LT Codes
Hitoshi Tokushige (Univ. of Tokushima), Jun Asatani (Okayama Univ. of Science) IT2009-64
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a concatenated coding scheme using error correcting and LT codes as the inner and outer
codes, respectively, for noisy channel. In the decoding algorithm, soft-input and soft-output maximum likelihood
decoding is applied to the inner code and the obtained soft-output values are handed over to the outer LT de-
coding as the soft-input values. Computer simulation results show that the proposed concatenated coding scheme
provides better error performance than the concatenated coding scheme not using the soft-output values in the pro-
posed concatenated coding scheme over an additive white Gaussian noise channel using binary phase shift keying
modulation.
Keyword (in Japanese) (See Japanese page) 
(in English) LT code / concatenated code / soft-input and soft-output decoding / / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 357, IT2009-64, pp. 71-74, Jan. 2010.
Paper # IT2009-64 
Date of Issue 2009-12-31 (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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF IT2009-64

Conference Information
Committee IT  
Conference Date 2010-01-07 - 2010-01-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. of Hawaii 
Topics (in Japanese) (See Japanese page) 
Topics (in English) general 
Paper Information
Registration To IT 
Conference Code 2010-01-IT 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On a Soft-input Decoding Algorithm of Concatenated LT Codes 
Sub Title (in English)  
Keyword(1) LT code  
Keyword(2) concatenated code  
Keyword(3) soft-input and soft-output decoding  
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Keyword(5)  
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Keyword(8)  
1st Author's Name Hitoshi Tokushige  
1st Author's Affiliation University of Tokushima (Univ. of Tokushima)
2nd Author's Name Jun Asatani  
2nd Author's Affiliation Okayama University of Science (Okayama Univ. of Science)
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Speaker Author-1 
Date Time 2010-01-08 11:35:00 
Presentation Time 20 minutes 
Registration for IT 
Paper # IT2009-64 
Volume (vol) vol.109 
Number (no) no.357 
Page pp.71-74 
#Pages 4 
Date of Issue 2009-12-31 (IT) 

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