Low maintenance cost small-world P2P network

In order to decrease the maintenance cost of structure P2P network, and increase the efficiency of the route and quire, we propose a low maintenance cost small-world P2P networks (LMCS). We describe the methods of network of the creating and maintenance. Small-world characteristic make the better efficiency of the route and quire, and we use of the clustering mechanism and extension of the COU strategy to decrease the maintenance cost. By Simulation, LMCS obviously presents the small-world characteristic. In contrast to Chord, LMCS have the lower maintenance cost and the higher query efficiency.