Smooth Streaming With MPEG-DASH Using SDN-Based Application-Aware Networking

摘要

Dynamic adaptive streaming over HTTP (DASH) establishes a simple architecture and enables new video applications to fully utilize the existing physical IP network infrastructure fully. However, given the limitation of a traditional TCP/IP network for supporting video transmission, existing streaming algorithms can easily lead to a suboptimal streaming experience. In this work, we propose a DASH application-aware network (AAN) architecture that can increase the users' quality of experience by optimizing DASH traffic. This paper contributes insights on the design of such an AAN network. Our evaluation results demonstrate that our proposed AAN framework can provide a smooth streaming experience for users regarding lowering the DASH segment bitrate switchover frequency by 260%, and increasing the download bitrate by 36% via an adaptive path selection with SDN.