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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 paths and trajectories. 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 different parameters like end-to-end delay, proactive protocols perform well and under throughput parameter, performance of reactive protocols is robust.
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