Performance Comparisonof Voip Over Wimax And Wi-Fifixednetworks

The aims of this paper is to evaluate the performance of VOIP over WIMAX and WIFI mobile network in terms of Packet loss, Throughput and the propagation of the delay Using OPNET simulation for different several scenarios. The parameter which were taken into considerations of the performance evaluation are Data Rate, Cell Radius (km), Path loss and Multipath Model, Base Station Transmission Power (W), Number of Cells Number of node per Cells, Number of Base Stations, Number of Subscriber Stations and Simulation time .The results were obtained in terms of graphs.