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arXiv 2602.21609cs.ITmath.IT
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拼接求和-秩码

Concatenated Sum-Rank Codes

Nanyang Technological University(南洋理工大学);VinUniversity(越南大学);Jinan University(暨南大学)

Huimin Lao, Hao Chen, San Ling, Yaqi Chen

AI总结:

本文提出拼接求和-秩码与汉明度量码的方法,构造出性能优于求和-秩BCH码的求和-秩码,并超越了两种已知界。

摘要:

求和-秩码在多射网络编码、分布式存储以及空间时间码构造中有广泛应用。在最近发表于IEEE信息理论汇刊的一篇论文中,E.Berardini和X.Caruso构造了渐近良好的线性化代数几何求和-秩码序列,超越了Gilbert-Varshamov型界,我们称此界为Tsfasman-Vladut-Zink型界。本文中,我们引入了求和-秩码与汉明度量码的拼接。然后通过简单明确的方法构造了许多性能优于求和-秩BCH码的求和-秩码。此外,我们还获得了超越Tsfasman-Vladut-Zink型界和Gilbert-Varshamov型界的渐近良好的求和-秩码序列。

英文摘要:

Sum-rank codes have wide applications in multishot network coding, distributed storage and the construction of space-time codes. Asymptotically good sequences of linearized algebraic geometry sum-rank codes, exceeding the Gilbert-Varshamov-like bound, were constructed in a recent paper published in IEEE Trans. Inf. Theory by E. Berardini and X. Caruso. We call this bound the Tsfasman-Vladut-Zink-like bound. In this paper, we introduce the concatenation of a sum-rank code and a Hamming metric code. Then many sum-rank codes with good parameters, which are better than sum-rank BCH codes, are constructed simply and explicitly. Moreover, we obtain an asymptotically good sequence of sum-rank codes exceeding the Tsfasman-Vladut-Zink-like bound and the Gilbert-Varshamov-like bound.

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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