News‎ > ‎

Paper accepted on DASH and SVC at IFIP/IEEE QCMan 2013

posted May 22, 2013, 5:39 AM by Tobias Hoßfeld   [ updated Jul 21, 2014, 7:45 AM by Corinna Schmitt ]
The paper "Implementation and User-centric Comparison of a Novel Adaptation Logic for DASH with SVC" by Christian Sieber, Tobias Hoßfeld, Thomas Zinner, Phuoc Tran-Gia, Christian Timmerer has been accepted for publication at the IFIP/IEEE International Workshop on Quality of Experience Centric Management (QCMan) in Ghent, Belgium on May 31, 2013.


The MPEG-DASH standard allows the client-centric access to different representations of video content via the HTTP protocol. The client can flexibly switch between different qualities, i.e., different bit rates and thus avoid waiting times during the video playback due to empty playback buffers. However, quality switches and the play back of lower qualities is perceived by the user which may reduce the Quality of Experience (QoE). Therefore, novel algorithms are required which manage the streaming behavior with respect to the user’s requirements and which do not waste network resources. As indicated by recent studies, the scalable video codec H.264/SVC may use the current network and content distribution infrastructure in a more efficient way than with single layer codecs. The contribution of this paper is the design and the implementation of a novel DASH/SVC streaming algorithm. By means of measurements in a test-bed, its performance and benefits are evaluated and compared to existing algorithms from an user-centric view point with objective performance metrics. Our findings show that the proposed algorithm outperforms other DASH mechanisms in terms of video quality, low switching  frequency and usage of the available resources in a realistic mobile network scenario. This is a first step towards true QoE management of video streaming in the Internet with DASH and SVC.

Full Paper

Download the full paper in PDF format from the author's website.