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An Improved Concatenation Scheme for LDPC and Convolutional Codes
Author(s): 
Pages: 39-42
Year: Issue:  4
Journal: Beijing Electronics

Keyword:  LDPC码 卷积码 级联 RS码 比特翻转算法 交织;
Abstract: 给出一种改进的LDPC码与卷积码级联方案。LDPC码编码利用消除四环的下三角校验矩阵进行线性编码,在实现快速编码的同时保证较好的性能。在级联系统中,LDPC码采用由短码交织而成的长码,可实现并行译码,获得接近长码的性能。整个方案实现起来复杂度较低、时延小。仿真结果表明在小信噪比状态下,其性能明显优于RS码和卷积码的级联系统。
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