mca 12(2): e4

Research Article

Cross–layer cross–domain adaptation of mobile video services

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  • @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
Jose Oscar Fajardo1,2, Ianire Taboada1,2, Fidel Liberal1,2
  • 1: NQaS Research Group, Department of Electronics and Telecommunications, University of the Basque Country
  • 2: (UPV/EHU), ETSI Bilbao, 48013 Bilbao, Bizkaia, Spain

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.