Research on Incremental Network Coding Method for Cloud Storage Based on Byte Level Optimization Update

doi:10.3969/j.issn.1671-1122.2018.11.003

Abstract

Abstract:

Cloud storage system is a derivative concept of the cloud computing system, and it is a kind of cluster system including large amounts of the distributed storage resources, which provide safe and reliable network storage service. In order to improve the effectiveness of network coding for cloud storage system and improve the storage efficiency of data, an incremental network coding method for cloud storage based on byte level optimization is proposed. Firstly, a byte level optimization technique (Opt-DUM) is proposed for block differential update, which can improve the efficiency of cloud storage incremental coding by only sending updates related to the affected encoding bytes; Secondly, the problem of generating the update vector, reducing the increment matrix and the change of the file size in the process of updating is studied, and the design of the updating algorithm and communication protocol of all the participating modules in the cloud storage system is completed; Finally, the experimental results verify the performance advantages of the network update algorithm designed for file update in cloud storage system.

Key words: byte level, cloud storage, incremental, network coding, communication protocol

CLC Number:

TP309

Miaoli MA, Hongbo ZHANG, Weiying DING. Research on Incremental Network Coding Method for Cloud Storage Based on Byte Level Optimization Update[J]. Netinfo Security, 2018, 18(11): 18-26.

Figures/Tables 5

References 16

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