The Performance Of G.711 Viopcoder For Different Networks

2177 Words Sep 9th, 2016 9 Pages
Evaluation of G.711,723.1 and 729A VIOP Codec Using Guided And Unguided Communication Network

Tasnim Abdalla Abbas Mohamed / Dr.Amin Babiker A/Mustafa

Department Of Communication Engineering .Al-Neelain University

ABSTRACT

Voice over Internet Protocol is a technology that allows telephone calls to be made over computer networks like the Internet. There are several implementations of VoIP in the internet today. Many major telephone companies like AT&T have moved over to VoIP completely. It is still not clear how the performance varies with different network conditions, considering that the Internet does not provide QoS guarantees. The main objective of this paper isto evaluate the performance of G.711 VIOPcoder for different networks. Wired, Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMAX) and Universal Mobile Telecommunication System (UMTS) networks were implemented in OPNET Modeler The quality is compared using different QoS parameters like end-to-end delay, MOS, throughput and jitter. The VoIP codecs used in the measurements of QoS are: G.711,723.1 AND 729A. Simulations showed that G.711 is the best schemes that provide high quality of voice in Wireless Local Area Network (WLAN) communications .The results analyzed and the performance evaluated will give network operators an opportunity to select the codec for better services of VoIP for customer satisfaction.…
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