Selection of Super-peer in Mobile Peer-to-Peer Network

Aiming at the problems that peers have a strong ability of moving and the topology of network changes frequently in the mobile Peer-to-Peer(P2P) network,which make low efficiency and fallibility of the system,this paper proposes an algorithm of super-peer selection in mobile P2P network,it selects a peer with more powerful and longer lifetime as a super-peer,and uses the technique of backup super-peer,which can improve the efficiency of a system in the mobile P2P network system.Experimental results show that the algorithm can reduce the failure rate of super-peer and shorten the query delay.