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dc.contributor.authorLiberal Malaina, Fidel ORCID
dc.contributor.authorTaboada Puente, Ianire ORCID
dc.contributor.authorFajardo Portillo, José Oscar
dc.date.accessioned2013-05-23T13:19:50Z
dc.date.available2013-05-23T13:19:50Z
dc.date.issued2013
dc.identifier.citationJournal of Computer Networks and Communications 2013 : (2013) // Article ID 412491es
dc.identifier.issn2090-715X
dc.identifier.urihttp://hdl.handle.net/10810/10144
dc.description.abstractScalable video coding allows an efficient provision of video services at different quality levels with different energy demands. According to the specific type of service and network scenario, end users and/or operators may decide to choose among different energy versus quality combinations. In order to deal with the resulting trade-off, in this paper we analyze the number of video layers that are worth to be received taking into account the energy constraints. A single-objective optimization is proposed based on dynamically selecting the number of layers, which is able to minimize the energy consumption with the constraint of a minimal quality threshold to be reached. However, this approach cannot reflect the fact that the same increment of energy consumption may result in different increments of visual quality. Thus, a multiobjective optimization is proposed and a utility function is defined in order to weight the energy consumption and the visual quality criteria. Finally, since the optimization solving mechanism is computationally expensive to be implemented in mobile devices, a heuristic algorithm is proposed. This way, significant energy consumption reduction will be achieved while keeping reasonable quality levels.es
dc.description.sponsorshipEuropean Union Seventh Framework Programme (FP7/2007–2013) under Grant agreement 284863 (FP7 SEC GERYON) and from the Basque Country under BASAJAUN Project.es
dc.language.isoenges
dc.publisherHindawi Publishing Corporationes
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/284863
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.titleDealing with Energy-QoE Trade-Offs in Mobile Videoes
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holder© 2013 Fidel Liberal et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.relation.publisherversionhttp://www.hindawi.com/journals/jcnc/2013/412491/es
dc.identifier.doi10.1155/2013/412491
dc.departamentoesIngeniería de comunicacioneses_ES
dc.departamentoeuKomunikazioen ingeniaritzaes_ES
dc.subject.categoriaCOMPUTER NETWORKS AND COMMUNICATIONS
dc.subject.categoriaINFORMATION SYSTEMS


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