TI-CHORD: An Improved Chord Model Based on Topology and Interest Layer

In original Chord model,the semantic property of the content in the model is not taken into account. Besides,a node's logical ID is independent of its physical location,bringing tremendous delay to network routing.Aiming at the system instability of structured P2P model which is caused by the heterogeneity of nodes in model,this paper proposes a Structure P2P network based on the Chord (TI-CHORD).TI-CHORD divides the entire network into different groups according to the interest.Groups are in the form of organization ring,and nodes in one group have the same interest.Each group generated a super node independent of physical topology and all the super nodes constitute the super group. Compared with the original Chord,the TI-CHORD enhances the query efficiency and decrease the impact of dynamic environment.