TRAS: A Trust-Based Routing Protocol for Ad Hoc and Sensor Networks

摘要

Routing protocols in mobile ad hoc and sensor networks discover usable multi-hop routes between source and destination nodes. However, some of the routes found and used may not be as reliable or trustable as expected. Thus, finding a trusted route is an important component for enhancing the security of communication. This paper presents a trust-based routing protocol for enhanced security of communication in mobile ad hoc networks (MANETs) and wireless sensor networks (WSNs). Enhanced trust and security are achieved by the maintenance of a trust factor by the nodes in the network. This factor is established and refined over time and it increases for each node when it participates successfully in data transmissions. Simulation experiments are performed to verify the operation of the proposed protocol and evaluate its performance. The results show an improvement in the trust potential of the discovered path with the proper choice of certain important trust parameters.