| Presentation | 2008-01-17 A Scheme to Reduce the Calculation Cost of the Sum-Product Decoding Rumi AOYAMA, Yuichi KAJI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper investigates a modified sum-product decoding algorithm which suspends updating reliable messages obtained during the iteration. Zimmermann has proposed a criteria for the suspension by using a-priori values issued by a variable node, but the criteria is so loose that the decoding performance is severely degraded. The criteria is improved in this study by using additional information such as the extrinsic values and the syndrome of temporally estimated vectors. Simulation results suggest that the proposed criteria is effective to improve the performance and simultaneously to reduce the decoding complexity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LDPC codes / sum-product decoding / forced-convergence method / message passing / performance evaluation |
| Paper # | IT2007-28 |
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| Conference Information | |
| Committee | IT |
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| Conference Date | 2008/1/10(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 Theory (IT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Scheme to Reduce the Calculation Cost of the Sum-Product Decoding |
| Sub Title (in English) | |
| Keyword(1) | LDPC codes |
| Keyword(2) | sum-product decoding |
| Keyword(3) | forced-convergence method |
| Keyword(4) | message passing |
| Keyword(5) | performance evaluation |
| 1st Author's Name | Rumi AOYAMA |
| 1st Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Yuichi KAJI |
| 2nd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| Date | 2008-01-17 |
| Paper # | IT2007-28 |
| Volume (vol) | vol.107 |
| Number (no) | 422 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |