一种参数可变的最小存储再生码

doi:10.11896/JsJkx.190600063

Computer Science ›› 2020, Vol. 47 ›› Issue (6A): 305-309.doi: 10.11896/JsJkx.190600063

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Minimum Storage Regenerating Code with Variable Parameters

WANG Xue-bing

School of Precision Instruments and Optoelectronics Engineering,TianJin University,TianJin 300072,China
Shengli College,China University of Petroleum,Dongying,Shandong 257061,China

Published:2020-07-07
About author:WANG Xue-bing, born in 1974, associate professor.His main research interests include network communication, information security, intelligent material association and artificial intelligence.

Abstract

Abstract: A functional repair minimum storage regenerating code with the parameters of (n,k,B,d,t) leverages the strategy of (n,k) erasure code to repair a number of t nodes malfunction with the help of d helper nodes.Considering the elements of storage space,repair bandwidth,and the number of repairable nodes,a functional repair regenerating code with parameters of (n₁,k₁,B,d₁,t₁) needs to be transformed into another functional repair regenerating code with parameters of (n₂,k₂,B,d₂,t₂),and hopefully the transforming process can be done with minimum data downloading.To this end,by combining logical nodes with physical nodes,a functional repair regenerating code with variable parameters is constructed.It is proved the code can be transformed between different parameters and the minimum download data is used in the transforming process.

Key words: Logical node, Physical node, Regenerating code, Repair bandwidth, Storage code, Variable parameter code

CLC Number:

TP393

WANG Xue-bing. Minimum Storage Regenerating Code with Variable Parameters[J].Computer Science, 2020, 47(6A): 305-309.

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