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arXiv 0802.4079cs.ITmath.IT
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由非本原BCH码和分圆陪集导出的LDPC码族

Families of LDPC Codes Derived from Nonprimitive BCH Codes and Cyclotomic Cosets

Salah A. Aly

摘要:

低密度奇偶检验码(LDPC)是一类重要的码,有着广泛的应用。给出了构造规则LDPC码的两种代数方法--基于非本原窄义BCH码的方法和直接基于分圆陪集的方法。构造的代码具有高速率,是免费的长度为4的周期,因此,它们可以使用标准的迭代解码算法进行解码。导出了最小距离和停止距离的精确维数和界。这些构造的码可以用来导出量子纠错码。

英文摘要:

Low-density parity check (LDPC) codes are an important class of codes with many applications. Two algebraic methods for constructing regular LDPC codes are derived -- one based on nonprimitive narrow-sense BCH codes and the other directly based on cyclotomic cosets. The constructed codes have high rates and are free of cycles of length four; consequently, they can be decoded using standard iterative decoding algorithms. The exact dimension and bounds for the minimum distance and stopping distance are derived. These constructed codes can be used to derive quantum error-correcting codes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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