Power-efficient video streaming on mobile devices using optimal spatial scaling

Herglotz, Christian, Kaup, André, Coulombe, Stéphane et Vakili, Ahmad. 2019. « Power-efficient video streaming on mobile devices using optimal spatial scaling ». In IEEE 9th International Conference on Consumer Electronics (ICCE-Berlin) (Berlin, Germany, Sept. 8-11, 2019) pp. 233-238. IEEE Computer Society.
Compte des citations dans Scopus : 8.

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Résumé

This paper derives optimal spatial scaling and rate control parameters for power-efficient wireless video streaming on portable devices. A video streaming application is studied, which receives a high-resolution and high-quality video stream from a remote server and displays the content to the end-user. We show that the resolution of the input video can be adjusted such that the quality-power trade-off is optimized. Making use of a power model from the literature and subjective quality evaluation using a perceptual metric, we derive optimal combinations of the scaling factor and the rate-control parameter for encoding. For HD sequences, up to 10% of power can be saved at negligible quality losses and up to 15% of power can be saved at tolerable distortions. To show general validity, the method was tested for Wi-Fi and a mobile network as well as for two different smartphones.

Type de document:	Compte rendu de conférence
ISBN:	21666814 (ISSN); 9781728127453 (ISBN)
Éditeurs:	Éditeurs ORCID Velikic, G. NON SPÉCIFIÉ Gross, C. NON SPÉCIFIÉ
Professeur:	Professeur Coulombe, Stéphane
Affiliation:	Génie logiciel et des technologies de l'information
Date de dépôt:	03 mars 2020 20:49
Dernière modification:	17 janv. 2023 17:08
URI:	https://espace2.etsmtl.ca/id/eprint/20335

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