Performance of DSDV Protocol over Sensor Networks

Routing protocols play crucial role in determining performance parameters such as packet delivery fraction, end to end (end 2 end) delay, packet loss etc. of any ad hoc communication network. In this paper the performance of DSDV protocol in sensor network of randomly distributed static nodes with mobile source and sink nodes is investigated for source and sink velocities 0,10,20,40 and 60 m/sec. and node densities 20-100 nodes/km 2 by ns-2 simulator. It is observed that the average simulation end to end delay in static source and sink nodes scenario (i.e. velocity v=0) is generally higher than that in mobile source-sink cases for all node densities except at 20 nodes/km 2 . In the case where source and sink nodes are mobile, the delay is almost constant at 0.12 seconds (except at v10 = 10 m/s for 40 nodes/km 2 ). The average number of dropped packets in static case is higher than that in dynamic source-sink scenario. With increase in the velocities in case of dynamic source and sink nodes, the average number of dropped packets is around 10. The byte delivery fraction for moving source-sink cases for all velocities is higher than that for the static case (i.e. v=0) for all node densities. The byte delivery fraction decreases with the node density for all source-sink node velocities except velocity v=0.