Two Enhanced Reliability-Based Decoding Algorithms for Nonbinary LDPC Codes
The weighted bit-reliability-based (wBRB) algorithm for nonbinary LDPC codes suffers certain loss of symbol-reliability. Thus, this paper enhances its soft-decision version by passing multiple symbol-reliability instead of bit-reliability. Furthermore, it demonstrates that plurality robustly indicat...
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Veröffentlicht in: | IEEE transactions on communications 2016-02, Vol.64 (2), p.479-489 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The weighted bit-reliability-based (wBRB) algorithm for nonbinary LDPC codes suffers certain loss of symbol-reliability. Thus, this paper enhances its soft-decision version by passing multiple symbol-reliability instead of bit-reliability. Furthermore, it demonstrates that plurality robustly indicates symbol-reliability of extrinsic information-sums. Thus, this paper enhances the hard-decision version by introducing symbol-reliability from plurality. Analysis results show that these two enhanced decoding algorithms significantly outperform the wBRB algorithm with reasonable overhead. |
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ISSN: | 0090-6778 1558-0857 |
DOI: | 10.1109/TCOMM.2015.2512582 |