Scale-Free Networks to Search in Unstructured Peer-To-Peer Networks

Abstract

Unstructured peer-to-peer file sharing networks are very popular in the market. They introduce network traffic. The resultant networks are not perform search efficiently because existing overlay topology formation algorithms are creates unstructured P2P networks without performance guarantees. In this paper, We compares structured and unstructured overlays, Showing through analytical and simulation results how an unstructured solution relying on a scale-free topology is an effective option to deploy for offering services based on equivalent servants. Based on this result, The EQUivalent servAnt locaTOR (EQUATOR) architecture, which overcomes the issues related to the deployment of a scale-free topology for service location in a real network, mainly due to the static nature of the ideal scale-free construction algorithm and the lack of a global knowledge of the participating peers. Simulation results confirmed the effectiveness of EQUATOR, showing how it offers good lookup performance in combination with low message overhead and high resiliency to node churn and failures. Some possible future works are introduced and are related to some complementary issues ranging from the proximity-aware selection of servants to the introduction of proper incentives to encourage nodes to join the EQUATOR overlay and offer their resources.