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arXiv 2203.11567cs.ITmath.IT
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不可约循环码的b-码元重量分布及其相关结果

The b-symbol weight distribution of irreducible cyclic codes and related consequences

Hongwei Zhu, Minjia Shi

摘要:

$b$ -符号读取通道是由高密度数据存储系统中读取过程的限制激发的。相应的新度量是汉明度量的推广,称为$b$ -符号重量度量,并且已经成为编码理论中的重要对象。本文利用高斯周期和一个新的不变量$\#U(b,j,N_1)$,给出了不可约循环码的广义$b$ -符号重量计数公式。对于某些情况给出了相关的$b$ -符号权重层次$\{d_1(\C),d_2(\C),\ldots,d_K(\C)\}$($K=\dim(\C)$).给出了几类不可约循环码的最优缩短码,其中缩短集$\mathcal{T}$是具有最小$b$ -码元权的码字的$b$-码元支持集的补集.

英文摘要:

The $b$-symbol read channel is motivated by the limitations of the reading process in high density data storage systems. The corresponding new metric is a generalization of the Hamming metric known as the $b$-symbol weight metric and has become an important object in coding theory. In this paper, the general $b$-symbol weight enumerator formula for irreducible cyclic codes is presented by using the Gaussian period and a new invariant $\#U(b,j,N_1)$. The related $b$-symbol weight hierarchies $\{d_1(\C),d_2(\C),\ldots,d_K(\C)\}$ ($K=\dim(\C)$) are given for some cases. The shortened codes which are optimal from some classes of irreducible cyclic codes are given, where the shorten set $\mathcal{T}$ is the complementary set of $b$-symbol support of some codeword with the minimal $b$-symbol weight.

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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