Video Quality Management over the Software Defined Networking

Dynamic Adaptive Streaming over HTTP (DASH) or MPEG-DASH is a popular technique that allows video quality adaptation for high quality streaming over the Internet. However, with bandwidth fluctuations, DASH performs poorly due to annoying frequent number of stalls. Software Defined Networking (SDN) has emerged as an attractive technology which has found its way into datacentres. Since one of the main goals of the SDN architecture is to make the network programmable and accelerate network innovation by utilizing its control plane, this paper has used the SDN control plane to propose a video quality management scheme based on the traffic intensity under DASH. Experimental results obtained by using Mininet and OpenDaylight controller have shown that the proposed scheme can significantly reduce the number of frequently annoying stalls and their duration by at least 84% and 94%, respectively. This has been achieved by switching network flows from high to low congested network paths within an SDN architecture.