Abstract Voice-over-IP (VoIP) services offer users a cheap alternative to the traditional
mobile operators to make voice calls. Due to the increased capabilities and connectivity of …

Abstract Voice-over-IP (VoIP) services, enabling users to make cheap phone calls using the
Internet, are becoming increasingly popular, not only on desktop computers but also on …

In recent years, the number of researches in Quality-of-Experience (QoE) is increasing
because this concept is used in several areas. In telecommunication services, the subscriber …

A successful deployment of multimedia applications over wireless environments entails
improving the quality of service (QoS), not only from a technical point of view, but also …

This paper performs a comparative analysis of the perceived quality of (unidirectional, non-
interactive) VoIP calls under various wireless network conditions (eg, handover, high traffic …

Voice Over IP (VoIP) is increasingly displacing traditional voice telephony services, but the
IP networks that carry the traffic are inherently prone to delays and losses that impact the …

Voice over IP (VoIP) now has tremendous influence on the telecommunication market with
its flexibility and price advantage. Users of VoIP expect call quality to be as good as, if not …

Abstract Quality of Experience (QoE) measures the overall quality of a service from users'
point of view by considering several system, human, and contextual factors. There exist …

This paper presents the performance evaluation of 3G mobile networks for one kind of
multimedia application called Voice over IP (VoIP) within Bangkok, the capital city of …

The quality perceived by the user, a concept known as Quality of user Experience (QoE), is
gaining momentum. Together with the efforts of providing appropriate architectures able to …