Improving search on Gnutella-like P2P systems

Gnutella has many weaknesses. Queries are handled identically no matter how popular the querying objects are. Blind flooding causes a great amount of redundant messages. In this paper, we explore how to retain the simplicity of Gnutella, while addressing its inherent weaknesses. We propose GPP, a content location solution in which multiple proxy peers are adopted to help a source peer locate desired objects. The underlying philosophy is to route queries to the areas where more results can be found. Towards this end, peers in GPP collaborate to achieve better search performance. Simulation results show that GPP outperforms Modified BFS and s-APS.