ABSTRACT

A mobile ad hoc network (MANET) is a collection of wireless mobile nodes dynamically forming a network topology without the use of any existing network infrastructure or centralized administration. Routing is the task of directing data packets from a source node to a given destination. The main method for evaluating the performance of MANETs is simulation. The On-demand protocol performs better than the table-driven protocol. This paper is subjected to Adhoc On Demand Distance Vector (AODV) routing protocol and evaluated its performance. We investigated the performance metrics namely Packet Delivery Fraction (PDF), Average endto- end delay, normalized routing load and throughput by varying network size up to 50 nodes through NS-2 simulation. The performance of protocol is one of the interesting issue. Almost always the network protocols were simulated as a function of mobility, but not as a function of network density. The main interest of this paper is to test the ability of AODV routing protocol to react on network topology changes.