Abstract
Nowadays, Internet video is the dominant internettraffic. DASH is an adaptive video streaming technique introducedto enable high quality video delivery over HTTP. In homenetworks, multiple video streams will compete for bandwidth, thus leading to poor performance and impacting the receivedquality of experience. In this paper we introduce a new techniqueto address this issue at the home network gateway withoutmodifying neither the client player nor the video server. Wedesign our framework NAVS (Network Assisted Video Streaming) relies on the deployment of Software Defined Networking (SDN). NAVS performs a dynamic traffic shaping based on the collectednetwork traffic statistics and monitoring of video flows. NAVSdynamically allocates bandwidth for each video flow in realtime. NAVS scheme has been evaluated over several metrics:bandwidth utilization, instability of players as well as the averagevideo quality received by the clients. Our results demonstrate animprovement for all these parameters.