An Adaptive Bitrate Algorithm Based on Estimation and Video Adaptation for Improving QoE in DASH

DOI

10.2991/csece-18.2018.41How to use a DOI?

Keywords

video streaming; DASH, video buffer; adaptive rate algorithm; QoE

Abstract

Dynamic Adaptive streaming over HTTP (DASH) is widely used by content providers for video delivery and dominates traffic on cellular networks. The variation in both video bitrate and network bandwidth badly impacts on the user Quality of Experience (QoE), so recent works is going to submitting better design of DASH adaptation algorithms. In this work, an adaptive bitrate algorithm is proposed which incorporates the network state, the application state and the video variety conditions to adapt video quality under time varying wireless system. The proposed algorithm consists of two main units: estimation unit and video adaptation unit. During the estimation unit, a new attribute is included that scales the buffer occupancy estimation and the throughput estimation based on the variations in the current buffer level and measured throughput of previous download segments. While during the video adaptation unit, the selection of video bitrate is done based on both the measurements at estimation unit and a target level. The simulation results show that the proposed algorithm significantly outperforms the other rate adaptation algorithms in terms of providing maximum download bit rates, minimum number of bitrates switches and the maximum utilization of available bandwidth while maintaining the playback buffer level within limits without any playback interruptions.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Saba Qasim Jabbar
AU  - Dheyaa Jasim Kadhim
AU  - Yu Li
PY  - 2018/02
DA  - 2018/02
TI  - An Adaptive Bitrate Algorithm Based on Estimation and Video Adaptation for Improving QoE in DASH
BT  - Proceedings of the 2018 International Conference on Computer Science, Electronics and Communication Engineering (CSECE 2018)
PB  - Atlantis Press
SP  - 191
EP  - 195
SN  - 2352-538X
UR  - https://doi.org/10.2991/csece-18.2018.41
DO  - 10.2991/csece-18.2018.41
ID  - Jabbar2018/02
ER  -