| Presentation | 2012-09-27 On Computing the Weight Spectrum of LDPC Convolutional Codes Constructed from Quasi-Cyclic Codes Masanori HIROTOMO, Masakatu MORII, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose an efficient method for computing the weight spectrum of LDPC convolutional codes constructed from quasi-cyclic block codes. In the proposed method, we reduce the memory size of their parity-check matrices with the same distance profile as original codes, and apply a forward and backward tree search algorithm to the parity-check matrices of reduced memory. We show numerical results of computing the minimum free distance and the low-part weight spectrum of LDPC convolutional codes of memory about 130. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LDPC convolutional codes / weight spectrum / tree search algorithm / quasi-cyclic codes |
| Paper # | IT2012-31 |
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| 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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| 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) | On Computing the Weight Spectrum of LDPC Convolutional Codes Constructed from Quasi-Cyclic Codes |
| Sub Title (in English) | |
| Keyword(1) | LDPC convolutional codes |
| Keyword(2) | weight spectrum |
| Keyword(3) | tree search algorithm |
| Keyword(4) | quasi-cyclic codes |
| 1st Author's Name | Masanori HIROTOMO |
| 1st Author's Affiliation | Computer and Network Center, Saga Univerisity() |
| 2nd Author's Name | Masakatu MORII |
| 2nd Author's Affiliation | Graduate School of Engneering, Kobe University |
| Date | 2012-09-27 |
| Paper # | IT2012-31 |
| Volume (vol) | vol.112 |
| Number (no) | 215 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |