RNP2P——A replica network-based unstructured P2P system
RNP2P——一种基于复本网络的非结构化P2P系统

According to the attributes of resource layout in unstructured P2P system, a replica network-based unstructured P2P system named RNP2 was proposed. The information of replica was coordinated among peers who store the replica by query feedback, active probing and reverse probing. The related data structure was established to keep the pointers of several other replicas. Through this resource management mechanism, the resource locating usually obtains 100% hit rate at the cost of locating only 3 ~ 5 replicas on average. Any query paradigm can incorporate with RNP2P efficiently. The simulations show that the search performance of RNP2P is far higher than that of other paradigms. When k-random walksbased query was adopted, RNP2P needs only 5% message overhead and far below that of flooding query. The query delay of RNP2P is reduced too.