A Simulated Behavioural Study of Prominent Reactive Routing Protocol AODV of MANET Using NS-2

Abstract: The dynamic development in communication technology plays a vital role in wireless network .Communication takes place by routing protocols in effective and efficient manner. Efficient protocols are used to forward data packets without much packet loss. Mobile Adhoc Network (MANET) is a collection of mobile devices, a self configured, multi-hop network. Simulating Tool NS-2 is an outstanding network simulating tool among all the others. Adhoc On Demand Distance Vector Routing Protocol (AODV) is one among the prominent Reactive Routing Protocol in MANET. The main causes for link break are mobility between nodes such as node failure and node power off. The objective of this paper is to explore AODV, when frequent link failure in network due to mobility of the nodes in the network. The paper examines and results the mobility of source node, intermediate node and destination node under link failure due to mobility. The performance analysis and simulation are carried out to evaluate network performance using Network Simulator (NS-2), based on the quantitative metrics packet delivery ratio, throughput and average end to end delay. The simulated result helps to understand the behavior of the protocol AODV in the distributed network environment under mobility and to show its ability to adapt in real world networks.

Keywords: MANET, NS-2, AODV, Throughput, Distributed network.