Optimal Codes Correcting a Burst of Deletions of Variable Length
Optimal Codes Correcting a Burst of Deletions of Variable Length
复制标题
纠正可变长度突发删除的最佳代码
DOI:
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复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
N. Polyanskii
中科院分区:
文献类型:
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作者:
A. Lenz;N. Polyanskii
In this paper, we present an efficiently encodable and decodable code construction that is capable of correcting a burst of deletions of length at most k. The redundancy of this code is log n + k(k + 1)/2 log log n + ck for some constant ck that only depends on k and thus is scaling-optimal. The code can be split into two main components. First, we impose a constraint that allows us to locate the burst of deletions up to an interval of size roughly log n. Then, with the knowledge of the approximate location of the burst, we use several shifted Varshamov-Tenengolts codes to correct the burst of deletions, which only requires a small amount of redundancy since the location is already known up to an interval of small size. Finally, we show how to efficiently encode and decode the code.
DOI:
10.1109/focs.2019.00029
发表时间:
2019
期刊:
IEEE Symposium on Foundations of Computer Science
影响因子:
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作者:
Haeupler, Bernhard
通讯作者:
Haeupler, Bernhard