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| Presentation | 2011-01-18 15:10 An improved bit flipping decoding algorithm based on messages of binary sequence Yuki Taniguchi, Gou Hosoya, Masayuki Goto (Waseda Univ.), Shigeichi Hirasawa (Waseda Univ./Cyber Univ.)  IT2010-64 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Though the iterative threshold of Bit-flipping (BF) decoding is less than that of belief-propagation (BP) decoding, BF decoding algorithm is an effective method compared with the BP decoding algorithm in term of the decoding complexity. It is verified that the BF decoding shows an error floor when the channel error probability is small. To overcome this problem, S.K. Planjery, et. al. have proposed three bits BF decoding algorithm whosemessages are combined with an ordinarily binary message and two bits message which represents a reliability of a codeword bit. Although the decoding performance of three bits BF decoding on an error floor region is greater than that of the BF decoding, its decoding rule is so complicated that it can be applied to for only the regular LDPC codes with variable node degree 3. In this paper, we propose a new three bit BF decoding algorithm applicable for the irregular LDPC codes. We also show by simulation results that the performance of the proposed new three bits BF decoding algorithm rule is better than that of the ordinarily three bits BF decoding algorithm. We also analytically derive the performance of both three bits BF decoding algorithms and compared them to show the effectiveness of our algorithm by the density evolution. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | LDPC codes / BP decoding algorithm / Three-bits BF decoding algorithm / Density evolution / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 363, IT2010-64, pp. 61-66, Jan. 2011. | |
| Paper # | IT2010-64 | |
| Date of Issue | 2011-01-11 (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 | IT2010-64 |
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| Conference Information | |
| Committee | IT |
| Conference Date | 2011-01-18 - 2011-01-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | IT |
| Conference Code | 2011-01-IT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An improved bit flipping decoding algorithm based on messages of binary sequence |
| Sub Title (in English) | |
| Keyword(1) | LDPC codes |
| Keyword(2) | BP decoding algorithm |
| Keyword(3) | Three-bits BF decoding algorithm |
| Keyword(4) | Density evolution |
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| 1st Author's Name | Yuki Taniguchi |
| 1st Author's Affiliation | Waseda University (Waseda Univ.) |
| 2nd Author's Name | Gou Hosoya |
| 2nd Author's Affiliation | Waseda University (Waseda Univ.) |
| 3rd Author's Name | Masayuki Goto |
| 3rd Author's Affiliation | Waseda University (Waseda Univ.) |
| 4th Author's Name | Shigeichi Hirasawa |
| 4th Author's Affiliation | Waseda University/Cyber University (Waseda Univ./Cyber Univ.) |
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| Speaker | Author-1 |
| Date Time | 2011-01-18 15:10:00 |
| Presentation Time | 20 minutes |
| Registration for | IT |
| Paper # | IT2010-64 |
| Volume (vol) | vol.110 |
| Number (no) | no.363 |
| Page | pp.61-66 |
| #Pages | 6 |
| Date of Issue | 2011-01-11 (IT) |
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