Simulation based Performance Comparison of Reactive and Proactive Routing Protocols of MANET Under CBR and TCP Traffic Model

Abstract

MANETS are connected and established between mobile nodes temporarily for a short period of time for the purpose of sharing information and exchanging messages among the source and destinations nodes. Since the length is normally very small therefore maximum throughput is necessary in order to exploit the entire communication period. Nodes which are part of this network behave both as the host and the router for the other communicating nodes. The main purpose of this research work is to simulate and analyzed the performance of proactive and reactive routing protocols of MANET under TCP and CBR traffic. In this work we have simulated and compared the performance of the three common and well known MANET routing protocols. We have use DSR and AODV as reactive routing protocols, DSDV as proactive routing protocols. Belligerent research in this area has been done since then with famous studies on Dynamic Source Routing, Ad hoc on demand Distance Vector and Destination Sequenced Distance Vector routing protocol. The simulations are performed and completed using Network Simulator version 2.35(NS-2.35) and the post analyses are performed by using awk script. To simulate and analyze the performance of the above routing protocols we have used Packet Delivery Ratio, Number of Packets Dropped and Throughput performance evaluation metrics. After simulating, measuring and analyzing the performance of thus routing protocols we are explore the effect of change in number of nodes on MANET reactive and proactive routing protocols. It has been observed from the simulation part Reactive protocols (AODV and DSR) are better than proactive routing protocols (DSDV) in terms of packet delivery ratio and throughput in case of both traffics i.e. TCP and CBR. But in the case of number of dropped packets of both 50 and 100 nodes with pause time shows that proactive routing (DSDV) have less number of dropped packets with TCP traffic.