若干线性码的停止集分布

Yong Jiang, Shutao Xia, Fang-Wei Fu
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引用次数: 7

摘要

本文利用有限几何理论确定了一些著名二进制线性码的停止集分布。与二元线性码的权重分布类似,SSD {Ti(H)}n i=0枚举具有奇偶校验矩阵H的线性码的大小为i的停止集的个数。首先,我们处理单纯形码和汉明码。利用汉明码的所有权码字组成的奇偶校验矩阵,用显式公式完全确定了单纯形码的SSD。利用单纯形码的所有非零码字组成的奇偶校验矩阵,用两个递推方程完全确定了汉明码的SSD。然后,讨论了一阶Reed-Muller码和扩展汉明码。利用扩展汉明码的所有权码字组成的奇偶校验矩阵,用显式公式完全确定了一阶Reed-Muller码的SSD。利用由一阶Reed-Muller码的所有最小码字构成的奇偶校验矩阵,用两个递推方程完全确定了扩展汉明码的SSD
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Stopping Set Distributions of Some Linear Codes
In this paper, the stopping set distributions (SSD) of some well-known binary linear codes are determined by using finite geometry theory. Similar to the weight distribution of a binary linear code, the SSD {Ti(H)}n i=0 enumerates the number of stopping sets with size i of a linear code with parity-check matrix H. First, we deal with the simplex codes and Hamming codes. With parity-check matrix formed by all the weight 3 codewords of the Hamming code, the SSD of the simplex code is completely determined with explicit formula. With parity-check matrix formed by all the nonzero codewords of the simplex code, the SSD of the Hamming code is completely determined with two recursive equations. Then, the first order Reed-Muller codes and the extended Hamming codes are discussed. With parity-check matrix formed by all the weight 4 codewords of the extended Hamming code, the SSD of the first order Reed-Muller code is completely determined with explicit formula. With parity-check matrix formed by all the minimum codewords of the first order Reed-Muller code, the SSD of the extended Hamming code is completely determined with two recursive equations
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