| Presentation | 2003/7/16 Low-Density Parity-Check Codes for Decoding Algorithm based on Belief Propagation : A shortening method for cyclic LDPC codes Satoshi NIEDA, Gou HOSOYA, Hideki YAGI, Shigeichi HIRASAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Decoding algorithms based on belief propagation, which iteratively compute a posteriori probability of received symbols, are well-known as decoding methods for Low-Density Parity-Check (LDPC) codes. It is known that decoding algorithms based on belief propargation, such as sum-product algorithm, does not work well when there exist loops of short length in the parity-check matrix. For this problem, several researchers have proposed construction methods of LDPC codes whose parity-check matrices have no loops of length 4. In this paper, we devise a shortening method for cyclic LDPC codes. We show by computer simulations that shortened codes obtained by the devised method have good performances. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LDPC code / algorithm based on belief propagation / sum-product algorithm / cyclic code / finite-geometry code / shortening method |
| Paper # | IT2003-32 |
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| Conference Information | |
| Committee | IT |
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| Conference Date | 2003/7/16(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 Theory (IT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low-Density Parity-Check Codes for Decoding Algorithm based on Belief Propagation : A shortening method for cyclic LDPC codes |
| Sub Title (in English) | |
| Keyword(1) | LDPC code |
| Keyword(2) | algorithm based on belief propagation |
| Keyword(3) | sum-product algorithm |
| Keyword(4) | cyclic code |
| Keyword(5) | finite-geometry code |
| Keyword(6) | shortening method |
| 1st Author's Name | Satoshi NIEDA |
| 1st Author's Affiliation | School of Science and Engineering, Waseda University() |
| 2nd Author's Name | Gou HOSOYA |
| 2nd Author's Affiliation | School of Science and Engineering, Waseda University |
| 3rd Author's Name | Hideki YAGI |
| 3rd Author's Affiliation | School of Science and Engineering, Waseda University |
| 4th Author's Name | Shigeichi HIRASAWA |
| 4th Author's Affiliation | School of Science and Engineering, Waseda University |
| Date | 2003/7/16 |
| Paper # | IT2003-32 |
| Volume (vol) | vol.103 |
| Number (no) | 215 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |