Small-d MSR Codes With Optimal Access, Optimal Sub-Packetization, and Linear Field Size

被引:5
|
作者
Vajha, Myna [1 ]
Balaji, S. B. [2 ]
Kumar, P. Vijay [3 ]
机构
[1] Qualcomm, Bengaluru 560056, India
[2] NXP, Bengaluru 560045, India
[3] Indian Inst Sci Bengaluru, Dept Elect Commun Engn, Bengaluru 560012, India
关键词
Coding theory; distributed storage; regenerating codes; minimum storage regenerating (MSR) codes; optimal access repair; Small-d codes; optimal sub-packetization level codes; MDS CODES; DISTRIBUTED STORAGE; REGENERATING CODES; OPTIMAL REPAIR;
D O I
10.1109/TIT.2023.3250458
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents an explicit construction of a class of optimal-access, minimum storage regenerating (MSR) codes, for small values of the number d of helper nodes. The construction is valid for any parameter set (n, k, d) with d. {k + 1, k + 2, k + 3} and employs a finite field Fq of size q = O(n). We will refer to the constructed codes as Small- d MSR codes. The sub-packetization level a is given by a = s. ns., where s = d-k+ 1. By an earlier result on the sub-packetization level for optimal-access MSR codes, this is the smallest value possible.
引用
收藏
页码:4303 / 4332
页数:30
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