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Performance Analysis of VoIP Traffic in WiMAX using Various Service Classes

International Journal of Computer Applications
© 2012 by IJCA Journal
Volume 52 - Number 20
Year of Publication: 2012
Tarik Anouari
Abdelkrim Haqiq

Tarik Anouari and Abdelkrim Haqiq. Article: Performance Analysis of VoIP Traffic in WiMAX using Various Service Classes. International Journal of Computer Applications 52(20):29-34, August 2012. Full text available. BibTeX

	author = {Tarik Anouari and Abdelkrim Haqiq},
	title = {Article: Performance Analysis of VoIP Traffic in WiMAX using Various Service Classes},
	journal = {International Journal of Computer Applications},
	year = {2012},
	volume = {52},
	number = {20},
	pages = {29-34},
	month = {August},
	note = {Full text available}


Worldwide Interoperability for Microwave Access (WiMAX) is currently one of the hottest technologies in wireless, it's a standard-based on the IEEE 802. 16 wireless technology that provides high throughput broadband connections over long distance, which supports Point to Multi-point (PMP) broadband wireless access. In parallel, voice Over Internet Protocol is a promising new technology which provides access to voice communication over internet protocol based network, it becomes an alternative to public switched telephone networks due to its capability of transmission of voice as packets over IP networks. Therefore VoIP is largely intolerant of delay and hence it needs a high priority transmission. In this paper we investigate the performances of the most common VoIP codecs, which are G. 711, G. 723. 1 and G. 729 over a WiMAX network using various service classes and NOAH as a transport protocol. To analyze the QoS parameters, the popular network simulator ns-2 was used. Various parameters that determine QoS of real life usage scenarios and traffic flows of applications is analyzed. The objective is to compare different types of service classes with respect to the QoS parameters, such as, throughput, average jitter and average delay.


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