Performance Improvement in DSR and Comparitive Analysis with DSDV, AODV, DSR

Abstract

Mobile ad-hoc network is an infrastructure less wireless network which have group of hosts. To communicate, these hosts on behalf of one another they transfer the packets. In an ad-hoc network there are many routing protocol. The most popular one ,out of them is dynamic source routing protocol(DSR).The most of the routing algorithms for MANET are designed for single source and single destination in the network. We have considered multiple source (two and three in our case) and single destination scenario. In our work we present some ideas or enhancements to the existing DSR protocol to make it more capable to tackle the above mentioned situation. We have taken our hypothesis of multiple source acting in network along with a single destination for high mobility area. Under this kind of situation also the performance of our network changes, as the nodes are mobile so the reputed routes (efficient route) keep on changing all the time and almost all the routing protocols are not capable of using the best routes for the optimum time as it would stick to the once captured route despite of the available good routes. So in our protocol ExDSR (Extended DSR) we tried to overcome this problem. To evaluate the performance of our proposed work different simulations have been conducted, considering various possible network parameters. We compared our protocol with the existing ones like AODV, DSDV and DSR and this novel protocol has shown better performance than the existing protocols under the mentioned scenarios.