A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications
A novel doping bits based belief propagation decoding algorithm, for rate-adaptive LDPC codes based on fixed bipartite graph code, is proposed. The proposed work modifies the decoding algorithm, by converting the puncturing nodes to regular source nodes and by following the encoding rule at the deco...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/467628 |
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| author | N. M. Masoodhu Banu S. Sasikumar |
| author_facet | N. M. Masoodhu Banu S. Sasikumar |
| author_sort | N. M. Masoodhu Banu |
| collection | DOAJ |
| description | A novel doping bits based belief propagation decoding algorithm, for rate-adaptive LDPC codes based on fixed bipartite graph code, is proposed. The proposed work modifies the decoding algorithm, by converting the puncturing nodes to regular source nodes and by following the encoding rule at the decoder. The transmitted doping bits in place of punctured bits, with the modified decoding algorithm at the decoder, feed all the punctured nodes with reliable log likelihood ratios. This enables the proposed decoding algorithm to recover all punctured nodes in the early iteration. The fast convergence leads to decoder complexity reduction while providing considerable improvement in performance. |
| format | Article |
| id | doaj-art-e576629921c04d03a410adfe637cebbd |
| institution | Kabale University |
| issn | 2090-0147 2090-0155 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Electrical and Computer Engineering |
| spelling | doaj-art-e576629921c04d03a410adfe637cebbd2025-02-03T05:44:37ZengWileyJournal of Electrical and Computer Engineering2090-01472090-01552014-01-01201410.1155/2014/467628467628A Doping Bits Based BP Decoding for Rateless Distributed Source Coding ApplicationsN. M. Masoodhu Banu0S. Sasikumar1Department of Electronics and Communication Engineering, Sethu Institute of Technology, Virudhunagar, IndiaDepartment of Electronics and Communication Engineering, R.M.D. Engineering College, Gummidipoondi Taluk, Thiruvallur District, Chennai, IndiaA novel doping bits based belief propagation decoding algorithm, for rate-adaptive LDPC codes based on fixed bipartite graph code, is proposed. The proposed work modifies the decoding algorithm, by converting the puncturing nodes to regular source nodes and by following the encoding rule at the decoder. The transmitted doping bits in place of punctured bits, with the modified decoding algorithm at the decoder, feed all the punctured nodes with reliable log likelihood ratios. This enables the proposed decoding algorithm to recover all punctured nodes in the early iteration. The fast convergence leads to decoder complexity reduction while providing considerable improvement in performance.http://dx.doi.org/10.1155/2014/467628 |
| spellingShingle | N. M. Masoodhu Banu S. Sasikumar A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications Journal of Electrical and Computer Engineering |
| title | A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications |
| title_full | A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications |
| title_fullStr | A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications |
| title_full_unstemmed | A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications |
| title_short | A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications |
| title_sort | doping bits based bp decoding for rateless distributed source coding applications |
| url | http://dx.doi.org/10.1155/2014/467628 |
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