| Presentation | 2005-03-17 A Decoding Algorithm Lowering Error Floors of LDPC Codes Tomoyuki ICHIKAWA, Kenta KASAI, Kohichi SAKANIWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Belief Propagation decoding for Low-Density Parity-Check (LDPC) codes approximates bit-wise Maximum A posteriori Probability (MAP) decoding. LDPC codes with carefully designed degree distribution tend to have error floors in which error rate decrease slowly as SNR increases. The aim of this report is to lower error floors of LDPC codes. In error floor region, the number of error bits in decoding result blocks is small and some paticular error pertterns are frequently observed. We investigate these small errors and cycles associated with frequent error bits and present a decoding algorithm lowering error floors of LDPC codes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Belief Propagation / MAP decoding / Low-Density Parity-Check codes / error floors |
| Paper # | IT2004-62,ISEC2004-118,WBS2004-177 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2005/3/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Decoding Algorithm Lowering Error Floors of LDPC Codes |
| Sub Title (in English) | |
| Keyword(1) | Belief Propagation |
| Keyword(2) | MAP decoding |
| Keyword(3) | Low-Density Parity-Check codes |
| Keyword(4) | error floors |
| 1st Author's Name | Tomoyuki ICHIKAWA |
| 1st Author's Affiliation | Dept. of Communications and Integrated Systems, Tokyo Institute of Techonology() |
| 2nd Author's Name | Kenta KASAI |
| 2nd Author's Affiliation | Dept. of Communications and Integrated Systems, Tokyo Institute of Techonology |
| 3rd Author's Name | Kohichi SAKANIWA |
| 3rd Author's Affiliation | Dept. of Communications and Integrated Systems, Tokyo Institute of Techonology |
| Date | 2005-03-17 |
| Paper # | IT2004-62,ISEC2004-118,WBS2004-177 |
| Volume (vol) | vol.104 |
| Number (no) | 731 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |