Abstract
This paper deals with the analysis of user perceived visual quality for mobilemultimedia services. H.264/AVC is selected for low resolution video encoding, and a mobile UMTS network is considered for the access to services. First, from subjective tests results, the combined impact of different servi
Highlights
Multimedia applications have become increasingly popular over Internet
The bursty error pattern is implemented at Universal Mobile Telecommunications System (UMTS) Radio Link Control (RLC) level following the results shown in [9], where the error pattern is obtained from live UMTS network traces
In order to evaluate spatio-temporal activity level of video sequences the parameters proposed in [14] are used. This approach consists on associating an scene complexity (C) and level of motion (M) value to each video sequence based on the average bits per frame and the average quantization parameter (QP) for I and P frames respectively
Summary
Multimedia applications have become increasingly popular over Internet. the wide– spreading of enhanced mobile Internet access and the continuous evolution of multimedia encoding techniques allow provisioning video services over mobile data connections at acceptable quality levels. As a step forward, in this paper we take into consideration the possible effects of the backhaul segment in the mobile infrastructure In this case, the decision making process is driven by the service configuration and the experienced performance in the radio link, but it takes into account the most suitable adaptation actions in order to overcome possible congestion situations in the mobile backhaul. The decision making process is driven by the service configuration and the experienced performance in the radio link, but it takes into account the most suitable adaptation actions in order to overcome possible congestion situations in the mobile backhaul This new functionality is stated in this paper as a cross– domain feature, assuming that the radio and wired segments of a mobile network are considered as two different domains
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