An Efficient Distributed System for Private Information Retrieval in Pcloud

Provided by: IJAIR
Topic: Data Management
Format: PDF
The peer-to-peer computing has attracted much attention as a new distributed computing paradigm. pCloud organizes the peers in overlay network, partitions the database into disjoint data segments, and disseminates the individual segments to the peers. To distribute the database to a number of cooperative peers, and leverage their computational resources to process cPIR queries in parallel by using the stripping technique. pCloud reduces the query response time compared to the traditional client/server model, and has a very low communication overhead additionally it scales well with an increasing number of peers, achieving a linear speedup.

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