matlab实现LDPC码的周长4测试

收录时间:2021-11-25
资源分类:Matlab 工具:MATLAB 6.5 (R13)

matlab实现LDPC码的周长4测试。最近,我们发现一些已发表的LDPC码构造方案没有考虑周长测试问题,这将不利于LDPC编解码器实现良好的误码性能。因此,我们发布了一个简单的程序,为LDPC码的周长4测试提供了工具。

Girth 4 test for LDPC codes

Recently, we find some published programs for the construction of LDPC codes have not concerned the Girth test problem, which will not the implementation of LDPC Codec to have good decoding BER. Thus, we publish a simple program to provide a tool for the girth 4 test of LDPC codes.

 

Input a parity check matrix H with the format of the example in the program, the program can determine whether it has

girth 4.

 

Ref:

[1] Y. Xiao, M -H Lee,Low complexity IMO-LDPC CDMA systems over multipath channels, IEICE Transactions on Communications, v E89-B, n 5, May, 2006, p 1713-1717

[2] J. Fan, Y. Xiao, A method of counting the number of cycles in LDPC codes, 8th International Conference on Signal Processing, ICSP 2006,Volume: 3, ISBN: 0-7803-9737-1, Digital Object Identifier: 10.1109/ICOSP.2006.345906

 

The papers [1] and [2] can be downloaded from Web site of IEICE and IEEE Explore.

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