Research on Cluster-based Trust Routing Protocol in Vehicle Ad Hoc Network

Focused on the security issues about clustering routing protocol which is more suitable for VANET(vehicular Ad Hoc network),a trust routing of the clustering algorithm which took weights into consideration was proposed.The algorithm takes the situation of the nodes' sending and receiving data packets during a period of communications as the reputation value.When processing the cluster head,the nodes' reputation value is an important weighting factor.The timely changes of the reputation value can help exclude the low credit nodes from the communications.The cooperation of trust weight and reputation value can lead to safer VANET and lower load.Simulations show that the improved algorithm,compared with WCA,has a better ability to counter selfish nodes.