摘要
与Turbo码相比,LDPC码有更好的性能和更低的解码复杂度,但其缺点是编码复杂。根据Richardson和Urbanke(RU)建议的编码方案,本文提出了一种适于在FPGA上实现的LDPC编码方案,其复杂度随码长呈线性增长。该方案可灵活应用于不同的校验矩阵H,码长和码率的系统中。
Compared to Turbo code, LPDC code can achieve better performance and lower decoding complexity, however its important drawback exists in the coding complexity. According to Richardson and Urbanke＇s proposal, this paper presents a flexible encoding method with linear encoding complexity and supporting arbitrary H matrix, rates and block length.
出处
《航空电子技术》
2006年第2期15-19,共5页
Avionics Technology
关键词
LDPC码字
H矩阵
预处理
稀疏矩阵
前向迭代
LDPC code word
H Matrix
Preprocessor
Sparse Matrix
Forward-substitution
