Comparitive Study of Three Mobile Ad-hoc Network Routing Protocols Under Different Traffic Source

Ad hoc network is a network formed without any central administration which consists of nodes that use a wireless interface to send packet data. Since the nodes in a network of this kind can serve as routers and hosts, they can forward packets on behalf of other nodes and run user applications. A mobile ad hoc network (MANET) is probably the most well-known example of this networking paradigm having been around for over twenty years, mainly exploited to design tactical networks. Furthermore, the multi-hop ad hoc networking paradigm is often used for building sensor networks to study, control, and monitor events and phenomena. To exploit these potentialities, simulation modeling and theoretical analyses have to be complemented by real experiences (e.g., experiences/measurements on real prototypes), which provide both a direct evaluation of ad hoc networks and, at the same time, precious information for a realistic modeling of these systems. In this paper we will simulate the environment used for analyzing, evaluating and implementing AODV, DSR and DSDV routing protocols in MANET, to analyze the performance of above said protocols based on Packet Delivery Fraction, Average End-to-End Delay and Number of dropped data packets. We have compared these three protocols on the basis of two traffic sources and these are TCP and CBR. For our simulation we had used a discrete event simulator known as NS2 (i.e. Network Simulator Ver.2.27).