Scalable Distributed Video-on-Demand: Theoretical Bounds and Practical   Algorithms
  We analyze a distributed system where n nodes called boxes store a large set of videos and collaborate to serve simultaneously n videos or less. We explore under which conditions such a system can be scalable while serving any sequence of demands. We model this problem through a combination of two algorithms: a video allocation algorithm and a connection scheduling algorithm. The latter plays against an adversary that incrementally proposes video requests. 
Laurent Viennot (INRIA Rocquencourt), Yacine Boufkhad (INRIA   Rocquencourt, LIAFA), Fabien Mathieu (INRIA Rocquencourt, FT ...