Traffic behaviour of VoIP in a simulated access network

Article


Das Gupta, Jishu, Howard, Srecko and Howard, Angela. 2006. "Traffic behaviour of VoIP in a simulated access network." International Transactions on Engineering, Computing and Technology. 18, pp. 189-194.
Article Title

Traffic behaviour of VoIP in a simulated access network

Article CategoryArticle
AuthorsDas Gupta, Jishu (Author), Howard, Srecko (Author) and Howard, Angela (Author)
Journal TitleInternational Transactions on Engineering, Computing and Technology
Journal Citation18, pp. 189-194
Article Number40010
Number of Pages6
Year2006
Place of PublicationVienna, Austria
Web Address (URL)http://www.enformatika.org/data/v18/v18-36.pdf
Abstract

[Abstract]: Insufficient Quality of Service (QoS) of Voice over Internet Protocol (VoIP) is a growing concern that has lead the need for research and study. In this paper we investigate the performance of VoIP and the impact of resource limitations on the performance of Access Networks. The impact of VoIP performance in Access Networks is particularly important in regions where Internet resources are limited and the cost of improving these resources is prohibitive. It is clear that perceived VoIP performance, as measured by mean opinion score [2] in experiments, where subjects are asked to rate communication quality, is determined by end-to-end delay on the communication path, delay variation, packet loss, echo, the coding algorithm in use and noise. These performance indicators can be measured and the affect in the Access Network can be estimated. This paper investigates the congestion in the Access Network to the overall performance of VoIP services with the presence of other substantial uses of internet and ways in which Access Networks can be designed to improve VoIP performance. Methods for analyzing the impact of the Access Network on VoIP performance will be surveyed and reviewed. This paper also considers some approaches for improving performance of VoIP by carrying out experiments using Network Simulator version 2 (NS2) software with a view to gaining a better understanding of the design of Access Networks.

Keywordscodec, DiffServ, Droptail, RED, VOIP
ANZSRC Field of Research 2020400604. Network engineering
400699. Communications engineering not elsewhere classified
409999. Other engineering not elsewhere classified
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File reproduced in accordance with the copyright policy of the publisher/author.

Byline AffiliationsSchool of Information Systems
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