arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.13611cs.ITmath.IT
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秩和度量中的最优反码、MSRD码和广义权

Optimal anticodes, MSRD codes, and generalized weights in the sum-rank metric

Eduardo Camps Moreno, Elisa Gorla, Cristina Landolina, Elisa Lorenzo García, Umberto Martínez-Peñas, Flavio Salizzoni

摘要:

和秩度量码由于其在许多应用中的重要性,近年来引起了许多研究者的关注。在数学上,和秩度量是汉明度量和秩度量的自然推广。在本文中,我们提供了一个反码界的和秩度量,它扩展了相应的汉明和秩度量的反码界。然后我们对最优反码进行分类,即,达到秩和度量反码界的码。我们使用这些最佳的反码来定义广义和秩权重,我们研究他们的主要性质。特别地,我们证明了一个MSRD码的广义重量是由它的参数。作为一个应用,在附录中,我们解释了广义权重如何测量多点网络编码中的信息泄漏。

英文摘要:

Sum-rank metric codes have recently attracted the attention of many researchers, due to their relevance in several applications. Mathematically, the sum-rank metric is a natural generalization of both the Hamming metric and the rank metric. In this paper, we provide an Anticode Bound for the sum-rank metric, which extends the corresponding Hamming and rank-metric Anticode bounds. We classify then optimal anticodes, i.e., codes attaining the sum-rank metric Anticode Bound. We use these optimal anticodes to define generalized sum-rank weights and we study their main properties. In particular, we prove that the generalized weights of an MSRD code are determined by its parameters. As an application, in the Appendix we explain how generalized weights measure information leakage in multishot network coding.

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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