Detecting and Isolating of Misbehaving Nodes in MANETs

Abstract

Mobile Ad-hoc Networks are wireless networks without infrastructure consisting of wireless mobile devices with self-configuration and self-organization. As a result of the lack of centralized management, these nodes cooperate with each other to send data packets. Most network protocols assume a cooperative environment between the nodes in the network. Moreover these types of networks are prone to many types of attacks because the nodes change their positions quickly and randomly. So there is a need for techniques to detect misbehaving nodes. This research presents a solution for identifying misbehavior using techniques to solve receiver collisions, limited transition power and collaborative misbehaving nodes using Ad hoc On-demand Distance Vector (AODV). The protocol has been implemented using network simulator NS2. Result show that the problem of collaborative misbehaving nodes has been solved taking into account the routing overhead and the misbehaving nodes were detected and isolated from the route.