Modelling video rate evolution in adaptive bitrate selection

Sani, Yusuf and Mauthe, Andreas Ulrich and Edwards, Christopher James (2015) Modelling video rate evolution in adaptive bitrate selection. In: Proceedings of IEEE International Symposium on Multimedia, ISM 2015 :. IEEE, pp. 89-94. ISBN 9781509003792

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Adaptive bitrate selection adjusts the quality of HTTP streaming video to a changing context. A number of different schemes have been proposed that use buffer state in the selection of the appropriate video rate. However, models describing the relationship between video quality levels and buffer occupancy are mostly based on heuristics, which often results in unstable and/or suboptimal quality. In this paper, we present a QoE-aware video rate evolution model based on buffer state changes. The scheme is evaluated within a real world Internet environment, where it is shown to improve the stability of the video rate. Up to 27% gain in average video rate can be achieved compared to the baseline ABR. The average throughput utilisation at a steady-state reaches 100% in some of the investigated scenarios.

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28 Jan 2016 14:30
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10 Jan 2024 00:41