The Effect of Velocity of Nodes on the Performance of Routing Protocols in Mobile Ad-hoc Networks

MANET [1, 2] is an autonomous system in which mobile hosts connected by wireless links [3] are free to move randomly [4] and often act as routers at the same time. Node failures and arbitrary movement of nodes break the routes and lead the frequent operation of rebuilding routes that consume lots of the network resources and the energy of nodes. This means we need a routing protocol that can enhance the network stability. There are three main categories of routing protocols: Proactive, Reactive and Hybrid. In this paper the performance of one proactive protocol (DSDV) and two reactive protocols (DSR and AODV) [5] has been evaluated. This evaluation is done by network Simulator 2(NS2). The performance is measured by means of following metrics: Packet Delivery Ratio, Average End to End Delay, and Normalized Routing Load.