Design of Low Complexity Non-Binary LDPC Codes with an Approximated Performance-Complexity Tradeoff

被引：6
|
作者：
Yang Yu [1 ,2 ]
Wen Chen [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200030, Peoples R China
[2] Xidian Univ, SKL ISN, Xian, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2012年 / 16卷 / 04期
关键词：
Nonbinary LDPC; EXIT chart; performance-complexity tradeoff; Gallager decoding algorithm b; DENSITY EVOLUTION;
D O I：
10.1109/LCOMM.2012.021612.112467
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
By presenting an approximated performance-complexity tradeoff (PCT) algorithm, a low-complexity nonbinary low density parity check (LDPC) code over q-ary-input symmetric-output channel is designed in this manuscript which converges faster than the threshold-optimized non-binary LDPC codes in the low error rate regime. We examine our algorithm by both hard and soft decision decoders. Moreover, simulation shows that the approximated PCT algorithm has accelerated the convergence process by 30% regarding the number of the decoding iterations.
引用
收藏
页码：514 / 517
页数：4
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