JOINT SOURCE-CHANNEL DECODING OF HUFFMAN CODES WITH LDPC CODES  

作　　者：Mei Zhonghui Wu Lenan 

机构地区：[1]Department of Radio Engineering, Southeast University, Nanjing 210096, China

出　　处：《Journal of Electronics(China)》2006年第6期806-809,共4页电子科学学刊（英文版）

摘　　要：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 redun-dancy, 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).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）.

关 键 词：Low-Density Parity Check codes （LDPC） Variable Length Codes （VLC） Huffman code Sum-Product Algorithm（SPA） Joint Source-Channel Decoding （JSCD） 

分 类 号：TN911[电子电信—通信与信息系统]