Simulation, Analysis and Performance Comparison among different Routing Protocols for Wireless Sensor Network

Abstract

Wireless sensor network is a network of tiny, autonomous sensor nodes. Nodes of these networks functions as a hosts and routers which discovers and maintains the routes to other nodes in the network. In such networks, nodes are able to move and synchronize with their neighbors. Due to mobility, connections in the network can change dynamically and nodes can be added and removed at any time. In this paper, we are going to compare wireless sensor network's routing protocols AODV, DYMO and OLSR using network simulator NS-2.34. We have compared the performance of three protocols together. The performance matrix includes PDR (Packet Delivery Ratio), Throughput, End to End Delay, Normalized Routing Load. We are comparing the performance of routing protocols when number of nodes changes, when mobility of nodes changes. Here we basically emphasize to show the behavior of the protocols in different scenario, so that it becomes easier for the network designer to choose a specific protocol based on his/her needs. The comparison results suggest that different routing protocol performs well in different scenarios and good for specific performance metrics. For example, OLSR performs well in the network with strict requirement on time but doesn't perform well in high mobility environment whereas DYMO performs well in high mobility environment. AODV shows average behavior.