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arXiv 2610.14435cs.ITcs.CRmath.IT
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来自三类单根循环码的DS与AMDS符号对码

DS and AMDS Symbol-Pair Codes from Three Families of Simple Root Cyclic Codes

Nanchang Hangkong University(南昌航空大学);Hubei University(湖北大学)

Jiawei He, Zihan Zhang, Xiaoqiang Wang, Zhao Lin

AI总结:

本文构造三类单根循环码,确定其最小符号对距离,所得码均为MDS或AMDS符号对码,为重叠对读取信道的纠错码设计提供了新方案。

摘要:

单根循环码的符号对距离对评估重叠对读取信道下的纠错性能至关重要。本文通过生成多项式在奇特征有限域上构造三类单根循环码:对于长度为2q+2的码,当q为≥7的奇素数幂时,通过排除无效支撑构型确定其最小符号对距离为10;对于长度为4q-4的码,当q≡3 mod 4且满足有限域约束时,其最小符号对距离为9或10;对于长度为2(q-1)的码,通过互反多项式分析确定其最小符号对距离为11或12。所有构造的码均为MDS或AMDS符号对码。

英文摘要:

Symbol-pair distances of simple-root cyclic codes are important for evaluating error correction performance under overlapping pair read channels. In this paper, we construct three families of simple-root cyclic codes over finite fields of odd characteristic via generator polynomials. For length \(2q+2\), the minimum symbol-pair distance is \(10\) for every odd prime power \(q\ge 7\), established by excluding invalid support configurations. For length \(4q-4\), when \(q\equiv 3\pmod 4\) and finite field constraints hold, it is \(9\) or \(10\). For length \(2(q-1)\), reciprocal-polynomial analysis shows it is \(11\) or \(12\). All obtained codes are MDS or AMDS symbol-pair 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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