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arXiv 1806.04474cs.ITmath.IT
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分布式存储中的纠删码:紧边界与匹配构造

Erasure Codes for Distributed Storage: Tight Bounds and Matching Constructions

S. B. Balaji, P. Vijay Kumar

摘要:

本论文对再生码和局部可恢复码的理论都有重要的贡献。这两个主要贡献是表征LR码的最佳速率,该LR码被设计为顺序地从$t$擦除的符号中恢复,对于任何$t$,以及在被称为最佳访问RG码的RG码的子类的子分组化级别(矢量码符号的长度)上的紧界的发展。然而,也有其他几个值得注意的贡献,如推导出最严格的已知边界的性能指标,如最小距离和速率的一个子类的LR代码称为可用性代码。本文还提出了一些最大可恢复码的低域构造方法。

英文摘要:

This thesis makes several significant contributions to the theory of both Regenerating (RG) and Locally Recoverable (LR) codes. The two principal contributions are characterizing the optimal rate of an LR code designed to recover from $t$ erased symbols sequentially, for any $t$ and the development of a tight bound on the sub-packetization level (length of a vector code symbol) of a sub-class of RG codes called optimal-access RG codes. There are however, several other notable contributions as well such as deriving the tightest-known bounds on the performance metrics such as minimum distance and rate of a sub-class of LR codes known as availability codes. The thesis also presents some low field size constructions of Maximal Recoverable codes.

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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