Enabling near real-time central control for live video delivery in CDNs

Abstract

nternet video delivery is experiencing a dramatic change. Live video dominates on-demand video in user engagement| PC viewers watch live video 11x more than VoD [2]. Live streaming services like Twitch, YouTube Live, and Ustream support many workloads: from mega-events (e.g., sporting events) viewed by tens of millions of users, to thousands of popular channels (>1,000 viewers), to many more less popular channels in the \long-tail". However, the addition of user-created live content is causing a fundamental shift towards unpredictable popularity dynamics.