A New Strategy of Resource Searching in Unstructured P2P Network

In the unstructured P2P networks, the flooding resource search method may cause much communication overhead, and severely constrains the scalability of network. In order to overcome this disadvantage, a new search strategy named TTL-Search based on the local caching and the scope of searching requests is proposed in this paper. According to this strategy, the searching process is divided into two stages, and each stage adopts different forwarding strategies. Analysis and experimental results show that, TTL-Search can overcome blindness of flooding search, and also can reduce redundancy overhead caused by query to some extend. So it can improve query success rate, and can be efficiently applied in the unstructured P2P network searching.