An Individual Behavior-based Trust Routing Model for Ad hoc Networks

The performance and security of ad hoc networks rely on the self-organized, collaborative and the trusted between the distributed links. To route and forward the data, it is important to evaluate the individual behavior of each node in network, benevolent nodes can keep the network working smoothly. However, malicious nodes present in the network that try to disrupt, distort or disturb the network traffic. So, this paper defines the method of the trust value computation associated with the behaviors of communication with its one-hop neighbor nodes reliably, timely, and integrally. After using a trust graph theoretic, we establish a trust routing model to evaluate and maintain trust relationships from the aspects of direct and indirect trust level to discover a most trustworthy routing. The simulation shows that the proposed model and algorithm can detect effectively malicious behaviors, bypass the malicious nodes, so as to improve the network packet delivery fraction, routing overhead and decrease the average end-to-end delay.