New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets
<p>Abstract</p> <p>Trapping sets are considered the primary factor for degrading the performance of low-density parity-check (LDPC) codes in the error-floor region. The effect of trapping sets on the performance of an LDPC code becomes worse as the code size decreases. One approach...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2008-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Online Access: | http://jwcn.eurasipjournals.com/content/2008/362897 |
| _version_ | 1819157156681744384 |
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| author | Adnan Landolsi Mohamed Alghonaim Esa El-Maleh Aiman |
| author_facet | Adnan Landolsi Mohamed Alghonaim Esa El-Maleh Aiman |
| author_sort | Adnan Landolsi Mohamed |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Trapping sets are considered the primary factor for degrading the performance of low-density parity-check (LDPC) codes in the error-floor region. The effect of trapping sets on the performance of an LDPC code becomes worse as the code size decreases. One approach to tackle this problem is to minimize trapping sets during LDPC code design. However, while trapping sets can be reduced, their complete elimination is infeasible due to the presence of cycles in the underlying LDPC code bipartite graph. In this work, we introduce a new technique based on <it>trapping sets neutralization</it> to minimize the negative effect of trapping sets under belief propagation (BP) decoding. Simulation results for random, progressive edge growth (PEG) and MacKay LDPC codes demonstrate the effectiveness of the proposed technique. The hardware cost of the proposed technique is also shown to be minimal.</p> |
| first_indexed | 2024-12-22T16:04:17Z |
| format | Article |
| id | doaj.art-d2eb9c8975e141c39904d9d005f82718 |
| institution | Directory Open Access Journal |
| issn | 1687-1472 1687-1499 |
| language | English |
| last_indexed | 2024-12-22T16:04:17Z |
| publishDate | 2008-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-d2eb9c8975e141c39904d9d005f827182022-12-21T18:20:38ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992008-01-0120081362897New Technique for Improving Performance of LDPC Codes in the Presence of Trapping SetsAdnan Landolsi MohamedAlghonaim EsaEl-Maleh Aiman<p>Abstract</p> <p>Trapping sets are considered the primary factor for degrading the performance of low-density parity-check (LDPC) codes in the error-floor region. The effect of trapping sets on the performance of an LDPC code becomes worse as the code size decreases. One approach to tackle this problem is to minimize trapping sets during LDPC code design. However, while trapping sets can be reduced, their complete elimination is infeasible due to the presence of cycles in the underlying LDPC code bipartite graph. In this work, we introduce a new technique based on <it>trapping sets neutralization</it> to minimize the negative effect of trapping sets under belief propagation (BP) decoding. Simulation results for random, progressive edge growth (PEG) and MacKay LDPC codes demonstrate the effectiveness of the proposed technique. The hardware cost of the proposed technique is also shown to be minimal.</p>http://jwcn.eurasipjournals.com/content/2008/362897 |
| spellingShingle | Adnan Landolsi Mohamed Alghonaim Esa El-Maleh Aiman New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets EURASIP Journal on Wireless Communications and Networking |
| title | New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets |
| title_full | New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets |
| title_fullStr | New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets |
| title_full_unstemmed | New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets |
| title_short | New Technique for Improving Performance of LDPC Codes in the Presence of Trapping Sets |
| title_sort | new technique for improving performance of ldpc codes in the presence of trapping sets |
| url | http://jwcn.eurasipjournals.com/content/2008/362897 |
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