Assem, Haytham and Malone, David and Dunne, Jonathan and O’Sullivan, Pat (2013) Monitoring VoIP Call Quality Using Improved Simplified E-model. In: International Conference on Computing, Networking and Communication (ICNC). IEEE, pp. 927-931. ISBN 978-1-4673-5287-1

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Abstract

ITU-T recommendation G.107 introduced the Emodel, a repeatable way to assess if a network is prepared to carry a VoIP call or not. Various studies show that the Emodel is complex with many factors to be used in monitoring purposes. Consequently, simplified versions of the E-model have been proposed to simplify the calculations and focus on the most important factors required for monitoring the call quality. In this paper, we propose simple correction to a simplified E-model; we show how to calculate the correction coefficients for 4 common codecs (G.711, G.723.1, G.726 and G.729A) and then we show that its predictions better match PESQ scores by implementing it in a monitoring application.

Item Type:	Book Section
Additional Information:	The definitive version of this article is available at DOI: 10.1109/ICCNC.2013.6504214
Keywords:	VoIP; E-model; PESQ; Monitoring;
Academic Unit:	Faculty of Science and Engineering > Research Institutes > Hamilton Institute Faculty of Science and Engineering > Mathematics and Statistics
Item ID:	5965
Identification Number:	https://doi.org/10.1109/ICCNC.2013.6504214
Depositing User:	Dr. David Malone
Date Deposited:	13 Mar 2015 15:32
Journal or Publication Title:	International Conference on Computing, Networking and Communication (ICNC)
Publisher:	IEEE
Refereed:	Yes
URI:	http://ieeexplore.ieee.org
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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