Performance of VoIP in wireless networks in presence of self similar data traffic

Faculty / School

Faculty of Computer Sciences (FCS)

Department

Department of Computer Science

Was this content written or created while at IBA?

Yes

Document Type

Conference Paper

Publication Date

2011

Conference Name

Proceedings of the IASTED International Conference on Modelling and Simulation

Conference Location

Calgary, AB, Canada

Conference Dates

4-6 July 2011

ISBN/ISSN

80053276068 (Scopus)

First Page

241

Publisher

ACTA Press

Abstract / Description

Performance of VoIP in wireless networks has been an active area of research. Additionally it has been well established that a number of traffic types present on the Internet are self-similar. Recent research has also indicated that traffic present on the Wireless LAN can also be characterized as self-similar. This paper attempts to analyze the impact of self-similar data traffic on the performance of VoIP traffic in both Wireless LANs as well as wireless multihop networks. The Pareto distribution, which is a popular example of self-similar traffic, has been used. The impact of the Squared Coefficient of Variance and the shape parameter of the Pareto distribution are also analyzed. VoIP jitter and Mean Opinion Score (MOS) along with end-to-end delay and probability of loss are the performance criteria considered in analyzing the VoIP as well as data traffic performance.

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