准循环LDPC码的构造及其性能仿真  

The Construction of Quasi-cyclic LDPC Codes and its Simulation Performance

作　　者：钟竞东[1] 梁钊[1] 

机构地区：[1]五邑大学信息研究所,广东江门529020

出　　处：《计算机工程与应用》2006年第21期61-63,共3页Computer Engineering and Applications

摘　　要：论文研究了准循环LDPC码的构造方法,并对其译码性能进行了仿真。结果表明,准循环LDPC码在中短码时具有很强的纠错能力,性能接近目前与其长度相仿的最好的LDPC码,且编译码简单,易于实现,因而具有广阔的应用前景。In this paper,the construction methods of Quasi-cyclic LDPC codes have been studied,and the decoding performance has been also presented by computer simulation.The result shows that QC LDPC codes have power error correcting ability at moderate or short length.The Bit error rate is very closed to that of the best LDPC codes for AWGN channel.So it can be expected that the QC LDPC codes will have wide application in future.

关 键 词：低密度奇偶校验码 二部图 围长 准循环码 循环矩阵 

分 类 号：TN915[电子电信—通信与信息系统]