Random waypoint mobility model based performance estimation of On-Demand routing protocols in MANET for CBR applications

A Mobile Ad-Hoc Network (MANET) is formed by a cluster of mobile nodes (hosts) and can be quickly deployed without any predetermined infrastructure. The network topology in MANET may keep changing arbitrarily. A routing protocol is used to discover routes between mobile hosts to facilitate communication inside the network with a minimum of overhead and bandwidth consumption. Various routing protocols have been proposed by researchers for mobile ad-hoc networks in the recent past. This paper presents performance evaluation and comparison of three different On-Demand routing protocols for Mobile Ad-Hoc Networks i.e. Ad hoc On-Demand Distance Vector (AODV), Dynamic Source Routing (DSR), and DYnamic MANET On-demand (DYMO) protocols in variable pause times. We have used random waypoint mobility model to design the network and performed simulations by using QualNet version 5.0 Simulator from Scalable Networks for CBR traffic in MANET. Performance of AODV, DSR and DYMO are evaluated based on Average end-to-end delay, Packet delivery ratio, Throughput and Average Jitter.