標題: Iterative Soft-decision Decoding of Reed-Solomon Codes Using Informed Dynamic Scheduling
作者: Lee, Huang-Chang
Huang, Guan-Xuan
Wang, Chung-Hsuan
Ueng, Yeong-Luh
傳播研究所
電機學院
Institute of Communication Studies
College of Electrical and Computer Engineering
關鍵字: Reed-Solomon codes;belief propagation;informed dynamic scheduling;iterative soft decoding
公開日期: 2015
摘要: In this paper, an iterative soft-decision decoding algorithm is proposed for Reed-Solomon (RS) codes. The proposed decoding algorithm combines the concepts of adapting the parity-check matrix and informed dynamic scheduling. Before each iteration, the parity-check matrix is re-arranged according to the reliability of the codeword bits, meaning that the influence of the least reliable variable nodes on the decoding process can be reduced. Consequently, the important decoding messages can be scheduled to be updated first, and the reliability of the least reliable bits can be enhanced. The simulation results show that the proposed decoding algorithm can provide significant improvement in the error-rate performance. By using the proposed algorithm, a gain of 0.5 dB can be achieved compared to the conventional adapting belief propagation algorithm.
URI: http://hdl.handle.net/11536/136307
ISBN: 978-1-4673-7704-1
期刊: 2015 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT)
起始頁: 2909
結束頁: 2913
顯示於類別:會議論文