JOINT SOURCE-CHANNEL DECODING OF HUFFMAN CODES WITH LDPC CODES

JOINT SOURCE-CHANNEL DECODING OF HUFFMAN CODES WITH LDPC CODES

In this paper, we present a Joint Source-Channel Decoding algorithm （JSCD） for Low-Density Parity Check （LDPC） codes by modifying the Sum-Product Algorithm （SPA） to account for the source redundancy, which results from the neighbouring Huffman coded bits. Simulations demonstrate that in the presence...

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Veröffentlicht in:Journal of electronics (China) 2006-11, Vol.23 (6), p.806-809
Hauptverfasser: Mei, Zhonghui, Wu, Lenan
Format: Artikel
Sprache:eng
Schlagworte:
Huffman码
SPA
低密度奇偶性校验码
变量长度码
结点信道源
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Zusammenfassung:In this paper, we present a Joint Source-Channel Decoding algorithm （JSCD） for Low-Density Parity Check （LDPC） codes by modifying the Sum-Product Algorithm （SPA） to account for the source redundancy, which results from the neighbouring Huffman coded bits. Simulations demonstrate that in the presence of source redundancy, the proposed algorithm gives better performance than the Separate Source and Channel Decoding algorithm （SSCD）.
ISSN:0217-9822
1993-0615
DOI:10.1007/s11767-005-0025-x