Performance Comparison of G.711 in different Efficiency Modes using ertps service flow

Abstract

WiMAX (Worldwide Interoperability for Microwave Access) is currently one of the hottest technologies in broadband wireless access. The IEEE 802.16 wireless technology provides high throughput broadband connections over long distance. One of killer applications for the 802.16 is Voice over IP (VoIP) service; Voice over Internet Protocol (VoIP) is a vastly growing technology which enables the transport of voice data over Internet Protocol based networks. In this research paper we investigate the performance of VoIP traffic over WiMAX network. We analyzed the performance of VoIP codec G.711 in terms of jitter, delay & throughput by comparing different modes of efficiency. The simulation was done using OPNET Modeler 14.5 and simulation results found the efficiency mode in which VoIP codec performed better. I.