A New Reputation-Based Trust Management Strategy for Clustered Ad Hoc Networks

To overcome the issue of limited information about unfamiliar nodes and to reduce the required memory space, a reputation-based trust management strategy for clustered ad hoc networks is proposed in this paper. Basically, our solution begin with gathering neighboring nodes as a cluster with a node selected as the cluster head who is responsible of issuing a trust certificate to every cluster member. Then we propose the method of combining trust ratings and modified Bayesian in the information exchange and reputation judgment. The network is not susceptible to damage from selfish or malicious nodes easily and efficiently. Finally, analysis of the strategy and performance simulation is also presented.