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Comparative Analysis of AODV & AOMDV under Varying Number of Nodes &at Different Pause Time

Kaveri G, K.G Maradia, Usha Neelakantan

An ad hoc wireless networkcan be described as a collection of nodes which have to interact among themselves without any centralized authority. In an ad hoc network node movement results in dynamic topology and link failure and thus routing become a challenging task. Many routing protocols have been proposed to overcome various challenges of routing in ad hoc networks. This paper presents performance comparison of mobile ad hoc network routing protocols; Ad hoc On demand Distance Vector (AODV) and Ad hoc On demand Multipath Distance Vector (AOMDV). Here investigation has been done on the effect of change in number of nodes and varying pause time on MANET routing protocols. The performance of AODV & AOMDV based on TCP based traffic pattern has been analyzed and compared. The NS2 simulator is used for performing various simulations. The performance analysis is based on different network metrics such as end to end delay, Packet Delivery Ratio (PDR), Throughput, Normalized Routing Load, Packet loss and Routing Overhead.