A Guard Node (GN) based Technique against Misbehaving Nodes in MANET
Journal of Ubiquitous Systems and Pervasive Networks · 2016
In open communication environment such as Ad hoc network, the possibility of having misbehaving nodes is high. The presence of misbehaving nodes could degrade the performance of the overall network. This mandates adopting Intrusion Detection System (IDS) that helps the routing protocol to avoid misbehavior nodes and links. The IDS should feature low overhead controlling packet, high accuracy level and low rate of both false alarms and missed detection rate. There are several IDS techniques proposed in the literature such as Watchdog and End-to-End acknowledgment based system. In this work, we propose a system based on assigning some nodes called “guard nodes” the responsibility of overhearing and reporting the misbehaving nodes. The scheme is proposed to overcome the majority of the drawbacks associated with the Watchdog techniques. We compare and evaluate our proposed scheme against Dynamic Source Routing (DSR) protocol using NS-2 program.