Advanced algorithm to structured P2P routing based on Chord protocol

Routing efficiency is the critical issue when constructing peer-to-peer overlay.However,structured P2P networks create a virtual topology on top of the physical topology,which is not consider the topology of physical networks,which would cause a serious topology mismatching between the P2P logical overlay network and the physical underlying IP network.This mismatch would lead up to a large of network delay in the Internet.A practicable method that optimizes the P2P logical overlay network is proposed.It is found that the approach can availably solve the mismatching problem and improve the routing efficiently.