CLSP2P: A P2P Overlay Combination Location and Semantic Clustering

To improve the efficiency and the topology mismatch problem of P2P overlay network, a new method of topology construction, CLSP2P, was introduced. The topology construction of CLSP2P not only consideration the physical location of nodes, but also consideration the semantic information of nodes: Nodes in CLSP2P were first organized as autonomous domain based on their physical location, then the nodes in a domain were formed in different semantic clustering according to their resource shared. The CLSP2P was supervised by domain and clustering simultaneously. Simulation results show that the query delay and traffic redundant was effective reduced in CLSP2P, at same time the query success rate was ensured.