Performance evaluation of Mobile Ad hoc Network routing protocols under various security attacks

Few characteristics of a Mobile Ad hoc Network, such as dynamic topology and shared wireless medium, pose various security challenges. This paper focuses on the performance investigation of reactive and proactive MANET routing protocols, namely, AODV and OLSR, under various the security attacks, where two types of attacks have been investigated. Network performance is evaluated in terms of end to end delay, retransmission attempts, network load and throughput, when a percentage of nodes misbehave. Simulation results show that under the passive attacks, proactive protocols perform well and under the active attacks, performance of reactive protocols is robust.