Date Added: Jan 2012
The core activity of any P2P system is File Sharing. In any system where many peers are connected, several replicas of same file may be present but the challenge, especially in an unstructured p2p overlay, is to make sure that there exist certain copies of the latest version for performing any read/write operation. The authors propose to achieve this using Voting Algorithm over any unstructured p2p (in their case, they chose GIA protocol). Voting algorithm assigns votes to each replica, based upon certain properties like its bandwidth or reliability, etc., of the node containing that replica. Any read/write is allowed to be performed only if the requesting process is able to cross the minimum threshold (read/write quorum).