移动P2P网络中超级节点的选择

针对移动P2P网络中节点移动性强、网络拓扑结构变化剧烈、导致系统的低效和不可靠问题，提出一种移动P2P网络中的超级节点选择算法，该算法能够选择性能好、在线时间长的节点作为超级节点，并且采用候补超级节点技术，有效改善移动P2P网络系统的效率。仿真实验结果表明，该算法可以有效降低超级节点的失效率和缩短查询延迟。

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.