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A comparative study of DASH representation sets using real user characteristics

Kreuzberger, C; Rainer, B; Hellwagner, H; Toni, L; Frossard, P; (2016) A comparative study of DASH representation sets using real user characteristics. In: Proceedings of the 26th International Workshop on Network and Operating Systems Support for Digital Audio and Video. (pp. pp. 19-24). ACM (Association for Computing Machinery): New York, NY, USA. Green open access

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Abstract

Adaptive streaming strategies over HTTP allow to serve heterogeneous video users with varying demands. By providing different encoded versions (representations) of each video sequence on the server, clients have the freedom to select a representation that best fits their needs. While the topic of selecting a representation based on a pre-defined set is covered very well in the literature, the problem of how to properly select the representation set stored at the main server is usually an overlooked challenge. In this work, we provide an analysis on how the choice of representations on the server impacts the clients' quality. This is achieved by conducting NS-3 based simulations with a total of 10k users and up to 300 concurrent DASH clients for several recommended sets (e.g., Netflix, YouTube, and Apple), and measuring the experienced quality over a timespan of 24 hours. The results show that under heavy load (at peak hours) there is still room for improvement.

Type: Proceedings paper
Title: A comparative study of DASH representation sets using real user characteristics
Event: NOSSDAV 2016 - 26th ACM SIGMM Workshop on Network and Operating Systems Support for Digital Audio and Video
Location: Klagenfurt, Austria
Dates: 10 May 2016 - 13 May 2016
ISBN-13: 9781450343565
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/2910642.2910647
Publisher version: http://dl.acm.org/citation.cfm?id=2910647&CFID=725...
Language: English
Additional information: © 2016 ACM.This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in: Proceedings of the 26th International Workshop on Network and Operating Systems Support for Digital Audio and Video, http://dx.doi.org/10.1145/2910642.2910647
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1533068
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