A Timer Based Acknowledgement Scheme for Node Misbehavior Detection and Isolation in MANET
Ramasamy Murugan, Arumugam Shanmugam · 2013
The nodes in the network that causes dysfunction in network and damage to the other node are misbehaving nodes. They support the flow of route discovery traffic but interrupt the data flow causing the routing protocol to restart the route discovery process. In this paper, an efficient timer based acknowledgement technique is proposed to detect and isolate the misbehaving nodes and can even find a possible alternate route in case when the number of misbehaving nodes is greater than minimum count. This involves a detection timer and forward counter that help to reduce the number of acknowledgements thus reducing the delay and overhead. This approach is keenly focusing on acknowledgement of nodes regarding the misbehaviors so that the source takes the corresponding action. Simulation results show that the timer based acknowledgement scheme attains good packet delivery ratio with reduced packet drop, delay and overhead, when compared with secured on-demand routing protocol.