Evaluation of impact of traffic VBR and mobility on the performance of AODV routing protocols in mobile ad hoc networks

Mobile ad-hoc network (MANET) is a collection of intercommunicating mobile hosts that dynamically forming a spontaneous network without use existing infrastructure. The mobility model represents the moving behavior of each mobile node in the MANET that should be realistic. It is a crucial part in the performance evaluation of MANET. In this paper we propose a novel performance evaluation by using traffic VBR. The goal of our work is to study the impact of various random mobility models on the performance of On-Demand Distance Vector Routing (AODV) protocol. We have studied the impact of node density with two different values of pause time for a fixed speed on performance (End-to-End Delay, Throughput and Packet Delivery Ratio). For experimental purposes, we have considered three mobility models: Random Waypoint, Random Direction and Mobgen-Steady State. Experimental results illustrate that the performance of the routing protocol varies across different mobility models.

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