Trust-based fault tolerance in mobile ad-hoc networks using adaptive monitoring

Mobile ad hoc networks (MANETs) is the collection of wireless nodes. The wireless nodes communicate with each other without any fixed infrastructure. One of the major challenges in ad hoc network is to make the network fault tolerant and provide the trustworthiness to the mobile nodes. Nowadays, the MANETs is widely used in the different field's applications, but the failure of these nodes is the main concern. So currently the researchers are focusing on designing a model which provides trustworthiness to the mobile nodes. In this paper, we modified the existing AODV routing protocol incorporating the enhanced trust value to deal with the faulty node detection and correction and ensure secure routing in mobile ad-hoc networks. This paper proposed a trust-based model which provides the trust value to every node on the basis of their energy, hop count and number of packets sent, here we also introduce a normalizing constant which normalizes the trust value. The performance of trust based model evaluated by throughput and packet delivery ratio, packet delay through the simulation set, which evidence better performance if load or traffic in the network increases. Proposed work shows enhancement over standard AODV protocol in terms of diverse network performance parameters.