Performance Evaluation to enhance the Quality of Service in Mobile Ad hoc Networks

Abstract

In mobile ad hoc networks (MANETs), the provision of quality of service (QoS) guarantees is much more challenging , mainly due to node mobility and resource constraints. Most popular routing protocol in MANET is AODV. The goal of this thesis is to evaluate and optimize the performance of AODV routing protocol in the virtual classroom environment by determining an optimal value of performance metrics such as data rate, queue size and packet size. Groups of different values of performance metrics are tested using ns-2 simulation to increase the number of nodes reaching the main node concurrently. Different values of data rate, packet size and queue size have been considered to perform the simulation. Accordingly, the simulation results were analyzed in the form of trace file with their corresponding graphs to explore the optimum values of performance metrics. According to the different scenario in the virtual classroom, computers can access the main node concurrently with acceptable QoS when applying the adaptively proposed performance metrics and restriction. Furthermore, this result considers great enhancement when the new QoS metrics are applied.