Dealing with Energy-QoE Trade-Offs in Mobile Video
Scalable 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 orde...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Computer Networks and Communications |
| Online Access: | http://dx.doi.org/10.1155/2013/412491 |
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| _version_ | 1850163696522756096 |
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| author | Fidel Liberal Ianire Taboada Jose-Oscar Fajardo |
| author_facet | Fidel Liberal Ianire Taboada Jose-Oscar Fajardo |
| author_sort | Fidel Liberal |
| collection | DOAJ |
| description | Scalable 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. |
| format | Article |
| id | doaj-art-f46f0adc50ce41bfb51b365bb0a2138d |
| institution | OA Journals |
| issn | 2090-7141 2090-715X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Computer Networks and Communications |
| spelling | doaj-art-f46f0adc50ce41bfb51b365bb0a2138d2025-08-20T02:22:10ZengWileyJournal of Computer Networks and Communications2090-71412090-715X2013-01-01201310.1155/2013/412491412491Dealing with Energy-QoE Trade-Offs in Mobile VideoFidel Liberal0Ianire Taboada1Jose-Oscar Fajardo2University of the Basque Country UPV/EHU, Faculty of Engineering of Bilbao, Alameda Urquijo s/n, 48013 Bilbao, SpainUniversity of the Basque Country UPV/EHU, Faculty of Engineering of Bilbao, Alameda Urquijo s/n, 48013 Bilbao, SpainUniversity of the Basque Country UPV/EHU, Faculty of Engineering of Bilbao, Alameda Urquijo s/n, 48013 Bilbao, SpainScalable 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.http://dx.doi.org/10.1155/2013/412491 |
| spellingShingle | Fidel Liberal Ianire Taboada Jose-Oscar Fajardo Dealing with Energy-QoE Trade-Offs in Mobile Video Journal of Computer Networks and Communications |
| title | Dealing with Energy-QoE Trade-Offs in Mobile Video |
| title_full | Dealing with Energy-QoE Trade-Offs in Mobile Video |
| title_fullStr | Dealing with Energy-QoE Trade-Offs in Mobile Video |
| title_full_unstemmed | Dealing with Energy-QoE Trade-Offs in Mobile Video |
| title_short | Dealing with Energy-QoE Trade-Offs in Mobile Video |
| title_sort | dealing with energy qoe trade offs in mobile video |
| url | http://dx.doi.org/10.1155/2013/412491 |
| work_keys_str_mv | AT fidelliberal dealingwithenergyqoetradeoffsinmobilevideo AT ianiretaboada dealingwithenergyqoetradeoffsinmobilevideo AT joseoscarfajardo dealingwithenergyqoetradeoffsinmobilevideo |