郑州大学学报（工学版）2011，Vol.32Issue(4)：107-110,4.
高阶调制的LDPC码译码算法研究
Decoding Algorithm for LDPC Codes of High Order Modulation
摘要
Abstract
Based on low-density parity-check ( LDPC ) coded modulation system, a new soft decision metric, with and without noise variance knowledge, is derived. We applied the log-likelihood ratio (LLR) of the individual bits to BP and Min-Sum decoding algorithm of LDPC code and proposed how to evaluate the noise variance after equalizer. The simulation results show that compared with accurate scheme, the performances of this scheme has good performance both in AWGN and SFN channel, and have practical value.关键词
低密度奇偶校验码/高阶调制/多径信道/对数似然比Key words
low-density parity-check codes/high order modulation/multi-path channel/LLR分类
信息技术与安全科学引用本文复制引用
陈燕,蔡灿辉..高阶调制的LDPC码译码算法研究[J].郑州大学学报（工学版）,2011,32(4):107-110,4.基金项目
华侨大学科研基金资助项目(08HZR15). （08HZR15）
