Han Cai, Minquan Cheng, Cuiling Fan, Xiaohu Tang: Optimal Locally Repairable Systematic Codes Based on Packings

发表刊物：IEEE Transactions on Communications

摘要：Locally repairable codes are desirable for distributed storage systems to improve the repair efficiency. In this paper, a connection between locally repairable codes with multiple disjoint repair sets and packings is derived under the condition that each repair set contains exactly one check symbol. Particularly, conditions under which an optimal locally repairable code corresponds to a packing are also characterized. As an application of this connection, some optimal locally repairable codes can be obtained by packings. Specifically, two constructions of locally repairable codes are proposed which not only generalize some known explicit constructions but also give optimal locally repairable codes with flexible new parameters.

论文类型：SCI

卷号：67

期号：1

页面范围：39-49

是否译文：否

发表时间：2019-01-15

发布期刊链接：https://ieeexplore.ieee.org/document/8463564