A comparative analysis of the perceived quality of VoIP under various wireless network conditions

Authors:
Ilias Tsompanidis;Georgios Fortetsanakis;Toni Hirvonen;Maria Papadopouli
Affiliations:
Department of Computer Science, University of Crete &, Institute of Computer Science, Foundation for Research and Technology - Hellas, Heraklion, Greece;Department of Computer Science, University of Crete &, Institute of Computer Science, Foundation for Research and Technology - Hellas, Heraklion, Greece;Department of Computer Science, University of Crete &, Institute of Computer Science, Foundation for Research and Technology - Hellas, Heraklion, Greece;Department of Computer Science, University of Crete &, Institute of Computer Science, Foundation for Research and Technology - Hellas, Heraklion, Greece
Venue:
WWIC'10 Proceedings of the 8th international conference on Wired/Wireless Internet Communications
Year:
2010

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Abstract

This paper performs a comparative analysis of the perceived quality of (unidirectional, non-interactive) VoIP calls under various wireless network conditions (e.g., handover, high traffic demand). It employs the PESQ tool, E-model and auditory tests to evaluate the impact of these network conditions on the perceived quality of VoIP calls. It also reveals the inability of PESQ and E-model to capture the quality of user experience. Furthermore, it shows that the network condition and the evaluation method exhibit statistically significant differences in terms of their reported opinion score values. Finally, the paper highlights the benefits of the packet loss concealment of the AMR 12.2kb/s and the QoS mechanisms under these network conditions.