Survey on Network Coding for Multiple Cloud Storage
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International Journal on Recent and Innovation Trends in Computing and Communication 3 (3): 979--980 (March 2015)

Reliability of data can be provided by maintaining redundancy in multiple cloud storage nodes. The simplest form of providing redundancy is replication, where it involves directly replicating data to multiple clouds. However, replication technique involves high computational cost and monetary cost is high when retrieving data in the multiple cloud environments. Therefore, striping data across multiple cloud storage is one of the best solution for providing redundancy and repair cost is very less when compared to replication. There exists many codes, which performs striping of data, erasure coding is an example where provides good redundancy. However, the erasure codes perform recovery of whole file rather a single block. Therefore new design problem arises when erasure codes are used. However, regenerating codes shows better solution for this problem.
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