Ananya Banerjee, Sutanu Ghosh and Anirban Neogi, Dr.Sudhir Chandra Sur Degree Engineering College, India

An Ad-hoc network consists of communicating nodes to establish improvised communication with environment without any fixed infrastructure. Nodes in Ad-hoc network (MANET) do not rely on a central infrastructure management but relay packets sent by other nodes. Mobile ad-hoc network can work properly only if the participating nodes collaborate with routing. Therefore it is required that the nodes co-operate for the intensity of operator network. Because of the high mobility of the nodes in the network, detection of misbehaviour of any node is a complex problem. Nodes have to share the routing information in order for each to find the route to the destination. This conceptual paper is based on the relationship among the nodes which makes them to co-operate in an ad-hoc network .This require nodes to Trust each other. Thus we can say Trust is a important concept in secure routing mechanism among the nodes. In this paper we present a unique Trust based method in which each node broadcast a RQ packet if it is received from different neighbours. The secure, efficient and reliable route towards the destination is calculated as a weighted average of the Trust value of the nodes in the route, with respect to it’s behaviour observed by the neighbour nodes and the number of nodes in the route.

DSR, Trust enhancement, correlation among neighbour nodes, malicious nodes, throughput, FTA, OPI, routing overhead.