arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2203.00940cs.ITmath.IT
收藏

AG码的快速译码

Fast Decoding of AG Codes

Peter Beelen, Johan Rosenkilde, Grigory Solomatov

摘要:

我们提出了一个有效的列表解码算法的Guruswami-Sudan风格的代数几何码。我们的译码器可以在有限域上使用$\tilde{\mathcal O}(s\ell^ωμ^{ω-1}(n+g))$运算来译码任何这样的码,其中$n$是码长,$g$是用于构造码的函数域的亏格,$s$是多重性参数,$\ell$是设计的列表大小,$μ$是Weierstrass半群中在某个选择位置处的最小正元素;“软O”符号$\tilde{\mathcal O}(\cdot)$类似于“大O”符号${\mathcal O}(\cdot)$,但忽略了对数因子。对于插值步骤,这构成了我们的方法的计算瓶颈,我们使用已知的算法为一元多项式矩阵,而根查找步骤是解决使用现有的算法在一元幂级数的根查找。

英文摘要:

We present an efficient list decoding algorithm in the style of Guruswami-Sudan for algebraic geometry codes. Our decoder can decode any such code using $\tilde{\mathcal O}(s\ell^ωμ^{ω-1}(n+g))$ operations in the underlying finite field, where $n$ is the code length, $g$ is the genus of the function field used to construct the code, $s$ is the multiplicity parameter, $\ell$ is the designed list size and $μ$ is the smallest positive element in the Weierstrass semigroup at some chosen place; the "soft-O" notation $\tilde{\mathcal O}(\cdot)$ is similar to the "big-O" notation ${\mathcal O}(\cdot)$, but ignores logarithmic factors. For the interpolation step, which constitutes the computational bottleneck of our approach, we use known algorithms for univariate polynomial matrices, while the root-finding step is solved using existing algorithms for root-finding over univariate power series.

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。

↑