標題: An Iterative Soft-decision Decoding Algorithm for Reed-Solomon Codes
作者: Lee, Huang-Chang
Wu, Jyun-Han
Wang, Chung-Hsuan
Ueng, Yeong-Luh
電機工程學系
電信工程研究所
Department of Electrical and Computer Engineering
Institute of Communications Engineering
關鍵字: error-control codes;Reed-Solomon codes;soft-decision decoding;belief propagation;informed-dynamic scheduling
公開日期: 1-一月-2017
摘要: This paper proposes an iterative soft-decision decoding algorithm for Reed-Solomon (RS) codes. The proposed decoding algorithm combines the concepts of adapting the parity-check matrix and informed dynamic scheduling decoding. The parity-check matrix is re-arranged before each iteration, where the systematic part is mapped to the least reliable bits, consequently reducing their influence on the other bits. Using dynamic scheduling, the more important decoding messages are updated to these least reliable bits, meaning that the majority of the error bits with low reliability can be corrected. When the proposed integrated decoding is applied to (255, 239) RS code, the difference between its frame error rate performance (FER) and the maximum-likelihood (ML) bound can be reduced to 0.8 dB, and a gain of about 0.1 dB is achieved compared to all the previously recorded soft-decision decoding for RS codes.
URI: http://hdl.handle.net/11536/147229
期刊: 2017 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT)
起始頁: 2775
結束頁: 2779
顯示於類別:會議論文