A Simulation Study and Comparison of On-Demand Ad- hoc Routing Protocols using QualNet 5.2

A mobile ad-hoc network is a wireless network of mobile devices in which the devices can locate them randomly and thus the network cannot have any fixed or centralized infrastructure. The paper aims to evaluate the performance of two main on-demand ad-hoc routing protocols- AODV and DSR using QUALNET 5.2 network simulator. Here, these protocols are analysed under two network simulation scenarios- varying number of nodes and mobility. Various performance metrics- average end-to-end delay, throughput, packet loss percentage, Packet delivery ratio and average jitter are examined to compare the network performance of these protocols. The simulation results show that DSR outperforms AODV with respect to increasing number of nodes while AODV performs better than DSR with respect to increasing pause time