Exact-Repair Regenerating Codes Via Layered Erasure Correction and Block Designs

被引:0
作者
Tian, Chao [1 ]
Aggarwal, Vaneet [1 ]
Vaishampayan, Vinay A. [1 ]
机构
[1] AT&T Labs Res, Shannon Lab, Florham Pk, NJ 07932 USA
来源
2013 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT) | 2013年
关键词
DISTRIBUTED STORAGE; CONSTRUCTION;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A new class of exact-repair regenerating codes is constructed by combining two layers of erasure correction codes together with combinatorial block designs. The proposed codes have the "uncoded repair" property where the nodes participating in the repair simply transfer part of the stored data directly, without performing any computation. The layered error correction structure results in a low-complexity decoding process. An analysis of our coding scheme is presented. This construction is able to achieve better performance than time-sharing between the minimum storage regenerating codes and the minimum repair-bandwidth regenerating codes.
引用
收藏
页码:1431 / 1435
页数:5
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