Voice Capacity Analysis of WLAN with Unbalanced Traffic

Authors:
Lin Cai;Xuemin (Sherman) Shen;Jon W. Mark;Yang Xiao
Affiliations:
University of Waterloo, Canada;University of Waterloo, Canada;University of Waterloo, Canada;The University of Memphis, Memphis, TN
Venue:
Proceedings of the Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks
Year:
2005

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Abstract

We evaluate the performance of voice transmission over a single-AP WLAN analytically and via simulation. Given the parameters of the Medium Access Control protocol and different voice codecs, the voice capacity of the WLAN, in terms of the maximum number of voice connections that can be supported by the WLAN with satisfactory userperceived quality, is obtained. Our analysis is applicable for unsaturated-station scenarios, and considers the practical issue induced by the unbalanced traffic. Extensive simulations have been performed to validate the analytical results.