Error Correction Scheme for Regenerating Code based Distributed Storage Systems
V S Lakshmi, P. P. Deepthi · 2018
Distributed storage systems (DSS) provide a cost effective and scalable solution to the increased demand for large scale data storage. Regenerating codes (RC) which offer an optimal tradeoff between storage efficiency and repair bandwidth efficiency are emerging as the future coding technique for distributed storage. But the proper functioning of a RC based DSS heavily depend upon the reliability of data being transferred between storage nodes. In this paper, the problem of exact node regeneration and data reconstruction in the presence of channel errors in a distributed storage system is considered. An efficient scheme is proposed to detect and correct channel errors with minimum communication overhead and decoding complexity, thus making it highly suitable for wired and wireless distributed storage applications.