OPTIMAL ENERGY-DELAY ROUTING PROTOCOL WITH TRUST LEVELS FOR WIRELESS AD HOC NETWORKS

Abstract

An ad hoc network is a group of wireless nodes which do not rely on any fixed infrastructure. Hosts cooperate by forwarding packets for each other to communicate with nodes that are out of the radio transmission range. We propose a new routing algorithm that is based on the concept of multipoint relay nodes (MPR). The main focus of the Trust Level Routing protocol is the reliability and survivability of the network by applying costs to each MPR candidate. The cost calculation is based on the delay incurred, energy available at the MPR node, energy spent during transmission and number of packets sent on each link. We highlight the vulnerabilities in current link state routing algorithms and propose the use of light weight encryption algorithms to achieve a dependable routing algorithm. Network simulator (ns-2) is used to compare the protocol performance to other existing link state routing protocols.