| Presentation | 2012-09-28 Message Passing Algorithm with MAP Decoding on Zigzag Cycles for Non-binary LDPC Codes Takayuki NOZAKI, Kenta KASAI, Kohichi SAKANIWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Non-binary LDPC codes / Error floor / Belief propagation decoder / Maximum a posteriori decoding / Binary erasure channel |
| Paper # | IT2012-44 |
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| Conference Information | |
| Committee | IT |
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| Conference Date | 2012/9/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Information Theory (IT) |
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| Language | ENG |
| 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) | |
| Keyword(1) | Non-binary LDPC codes |
| Keyword(2) | Error floor |
| Keyword(3) | Belief propagation decoder |
| Keyword(4) | Maximum a posteriori decoding |
| Keyword(5) | Binary erasure channel |
| 1st Author's Name | Takayuki NOZAKI |
| 1st Author's Affiliation | Department of Communication and Integrated Systems, Graduate School of Science and Engineering,Tokyo Institute of Technology() |
| 2nd Author's Name | Kenta KASAI |
| 2nd Author's Affiliation | Department of Communication and Integrated Systems, Graduate School of Science and Engineering,Tokyo Institute of Technology |
| 3rd Author's Name | Kohichi SAKANIWA |
| 3rd Author's Affiliation | Department of Communication and Integrated Systems, Graduate School of Science and Engineering,Tokyo Institute of Technology |
| Date | 2012-09-28 |
| Paper # | IT2012-44 |
| Volume (vol) | vol.112 |
| Number (no) | 215 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |