A robust incentive mechanism with grading approach for peer to peer network

In p2p systems, the overall system performance is improved by implementing the robust incentives and polices to promote fair and competent resource sharing which is the key factor. In this paper points based robust incentive mechanism is proposed. In this approach, a proposed GC algorithm first calculates a global score for each peer that accurately reflects its bandwidth contribution to the entire network is calculated. Then, these scores are used in a proposed data transfer policy to determine whether one peer can download data from other peers. A transaction procedure keeps the network fair thereby preventing free-riding and balancing upload and downloads amounts in each peer.