一种新型的建筑不规则低密度

奇偶检验基于所述修改（LDPC）码

渐进边增长（PEG）的算法。边缘

所述PEG算法的位置是由利用所述Sum-增强

积算法在奇偶校验矩阵的设计。该

提出的算法是在块长度和速度非常灵活。

被提议的方法构建代码的测试

AWGN信道和显著的性能改进

实现。建议解码器优化的灵活性

动作，然后由它的使用在修改所述改进的示

PEGIPEGI）算法来实现进一步的性能提升。-A novel construction for irregular low-density

parity-check (LDPC) codes based on a modification of the

Progressive Edge Growth (PEG) algorithm is presented. Edge

placement of the PEG algorithm is enhanced by use of the Sum-

Product algorithm in the design of the parity-check matrix. The

proposed algorithm is highly flexible in block length and rate.

The codes constructed by the proposed methods are tested in the

AWGN channel and significant performance improvements are

achieved. The flexibility of the proposed decoder optimisation

operation is then shown by its use in modifying the Improved

PEG (IPEG) algorithm to achieve further performance gains.