Because the node of vehicular ad-hoc networks has the characteristics of high mobility and encounter temporary, a trust management between the nodes in the routing process becomes more difficult. To solve this problem, this paper proposes a new trusted routing protocol in VANET based on GeoDTN+Nav by using trust management model of Bayesian and the three opportunistic routing forwarding models, which includes four steps of the routing initialization, the routing discovery, the trusted routing establishment and the routing deletion. The proposed protocol not only improves the security of routing, but also has the lower time complexity. Besides, experimental results and analysis show that the protocol has achieved good performance in the removal ratio of malicious nodes, correct reception ratio of packet and the message payload.
The particularities of the high dynamic, temporary meeting make the trust and cooperation between vehicles more difficult. To solve this problem, by using trust management model of Bayesian and in the light of the three kinds of opportunistic routing forwarding model, this paper puts forward a trusted routing protocol in VANET Based on GeoDTN+Nav routing protocol. The proposed protocol not only improves the security of routing, but also has the lower time complexity. Experimental results and analysis show that the proposed protocol has achieved good performance in the removal ratio of malicious nodes, correct reception ratio of packet and the message payload.
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