Abstract
Mobile ad hoc network (MANET) is a dynamic network without fixed infrastructure due to their wireless nature and can be deployed as multi-hop packet networks. The nodes are free to move about and organize themselves into a network. These nodes change position frequently. A Reactive (on-demand) routing strategy is a popular routing category for wireless adhoc routing. The primary objective of this paper is to do comparative study of the performance of routing protocols Destination-Sequenced Distance-Vector (DSDV), Dynamic Source Routing (DSR) and Ad-hoc on demand Distance Vector (AODV) for wireless ad hoc networks in a simulated environment against varying network parameters. The evaluations are done by means of simulations using NS-2 network simulator. The study was done on the basis of performance metrics: throughput, packet delivery function, end-to-end delay, routing overhead and packet lost. Simulation results show that despite in most simulations reactive routing protocols DSR and AODV performed significantly better than proactive routing protocol DSDV for the CBR based traffic.
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