Hybrid and hierarchical resource locating model based on Chord

This paper puts forward hybrid and hierarchical resource locating model based on Chord (HHRLMC), this model is divided into two layers, the upper layer consisted Super-Peers constructs resource location based on Chord[1] ring, the lower layer adopts centralized scheme with the Super-Peers for center and Pure-Peer for edge. In the process of searching resource, the system can comprehensively use resource directly locating based on Chord and flooding [2]full-text search[3] are two ways to search resource, which expends searching coverage. This paper simulates the model with P2PSim tool and analyzes the performance of the improved model.