Paper Abstract and Keywords |
Presentation |
2012-09-28 14:25
Message Passing Algorithm with MAP Decoding on Zigzag Cycles for Non-binary LDPC Codes Takayuki Nozaki, Kenta Kasai, Kohichi Sakaniwa (Tokyo Inst. of Tech.) IT2012-44 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we propose a decoding algorithm which lowers decoding erasure rates in the error floor regions for non-binary low-density parity-check codes transmitted over the binary erasure channels. This decoding algorithm is a combination with belief propagation (BP) decoding and maximum a posteriori (MAP) decoding on zigzag cycles, which cause decoding erasures in the error floor region. We show that MAP decoding on the zigzag cycles is realized by means of a message passing algorithm. A simulation result shows that the decoding erasure rates in the error floor regions by the proposed decoding algorithm are lower than those by the BP decoder. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Non-binary LDPC codes / Error floor / Belief propagation decoder / Maximum a posteriori decoding / Binary erasure channel / / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 215, IT2012-44, pp. 75-80, Sept. 2012. |
Paper # |
IT2012-44 |
Date of Issue |
2012-09-20 (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) |
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IT2012-44 |
Conference Information |
Committee |
IT |
Conference Date |
2012-09-27 - 2012-09-28 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kusatsu Seminar House |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
error correcting codes, general |
Paper Information |
Registration To |
IT |
Conference Code |
2012-09-IT |
Language |
English (Japanese title is available) |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Message Passing Algorithm with MAP Decoding on Zigzag Cycles for Non-binary LDPC Codes |
Sub Title (in English) |
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Keyword(1) |
Non-binary LDPC codes |
Keyword(2) |
Error floor |
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Belief propagation decoder |
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Maximum a posteriori decoding |
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Binary erasure channel |
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1st Author's Name |
Takayuki Nozaki |
1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
2nd Author's Name |
Kenta Kasai |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
3rd Author's Name |
Kohichi Sakaniwa |
3rd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2012-09-28 14:25:00 |
Presentation Time |
25 minutes |
Registration for |
IT |
Paper # |
IT2012-44 |
Volume (vol) |
vol.112 |
Number (no) |
no.215 |
Page |
pp.75-80 |
#Pages |
6 |
Date of Issue |
2012-09-20 (IT) |