Research Article
Cross–layer cross–domain adaptation of mobile video services
@ARTICLE{10.4108/mca.2012.07-09.e4, author={Jose Oscar Fajardo and Ianire Taboada and Fidel Liberal}, title={Cross--layer cross--domain adaptation of mobile video services}, journal={EAI Endorsed Transactions on Mobile Communications and Applications}, volume={1}, number={2}, publisher={ICST}, journal_a={MCA}, year={2012}, month={8}, keywords={adaptation, cross--layer, cross-domain, H.264/AVC, mobilemultimedia services, UMTS radio, UMTS backhaul}, doi={10.4108/mca.2012.07-09.e4} }- Jose Oscar Fajardo
Ianire Taboada
Fidel Liberal
Year: 2012
Cross–layer cross–domain adaptation of mobile video services
MCA
ICST
DOI: 10.4108/mca.2012.07-09.e4
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 service– and radio network–level parameters is inferred. As a result, different cross–layer adaptation alternatives are proposed to maximize the perceived quality level under different service conditions. Afterwards, the backhaul segment is considered taking into account possible congestion effects after the aggregation ofmulti–user media stream. The proposed dynamic adaptation process determines the best combination of media bitrates in order to optimise the overall quality, by making use of information related to network performance both at the radio and backhaul segments.
Copyright © 2012 Fajardo et al., licensed to ICST. This is an open access article distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.
