Abstract
In ad hoc networks, nodes act as routers and transmit data packets originating from other nodes to destinations beyond the transmission range of the source node. Traditional routing protocols designed for Mobile Ad hoc Network all nodes in the network are trustworthy. Security of routing protocol is challenging in realistic setting as networks are attacked by untrustworthy nodes which disrupt the communication. In this paper, it is proposed to investigate the performance of dynamic source routing (DSR) routing protocol under untrustworthy environment. A novel fuzzy based model with trust and reputation is proposed to enhance the performance of the network with untrustworthy nodes. Reputation system takes input of previous records of successful transmissions, capability of nodes calculated as total trust value and the node mobility. Trust and reputation parameters are used to identify a secured route for transmission in the network. Simulation results show improved Quality of Service of the proposed technique compared to DSR in untrustworthy environment.
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