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arXiv 1801.07033cs.ITmath.IT
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自正交秩度量码的列表可译码性

On the List Decodability of Self-orthogonal Rank Metric Codes

Shu Liu

摘要:

V. Guruswami和N.研究证明了在~ \cite{venkat2017}中,$\mathbb{F}_q$ -线性秩度量码的列表可译码性与随机秩度量码的列表可译码性相当。由于自正交秩度量码的潜在应用,本文重点研究了自正交秩度量码的列表译码。本文证明了速率为$R=(1-τ)(1-\frac{n}{m}τ)-ε$的$\mathbb{F}_q^{n\times m}$上的$\F_q$ -线性自正交秩度量码在分数半径$τ\in(0,1)$和小$ε\in(0,1)$下是列表可译码的,且列表大小至多取决于$τ$和$q$ $O_{τ, q}(\frac{1}ε)$ .此外,我们证明了速率达到Gilbert-Varshamov界的$\mathbb{F}_{q^m}$ -线性自正交秩度量码是$(τn, \exp(O_{τ, q}(\frac{1}ε)))$ -列表可译码的。

英文摘要:

V. Guruswami and N. Resch prove that the list decodability of $\mathbb{F}_q$-linear rank metric codes is as good as that of random rank metric codes in~\cite{venkat2017}. Due to the potential applications of self-orthogonal rank metric codes, we focus on list decoding of them. In this paper, we prove that with high probability, an $\F_q$-linear self-orthogonal rank metric code over $\mathbb{F}_q^{n\times m}$ of rate $R=(1-τ)(1-\frac{n}{m}τ)-ε$ is shown to be list decodable up to fractional radius $τ\in(0,1)$ and small $ε\in(0,1)$ with list size depending on $τ$ and $q$ at most $O_{τ, q}(\frac{1}ε)$. In addition, we show that an $\mathbb{F}_{q^m}$-linear self-orthogonal rank metric code of rate up to the Gilbert-Varshamov bound is $(τn, \exp(O_{τ, q}(\frac{1}ε)))$-list decodable.

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