  -- Within the Future Internet, a new trend is foreseen with the creation of
overlay networks composed of residential gateways (i.e. Home-Box), leveraging
their storage and upload capacity in order to achieve scalable and
cost-efficient content distribution. In this paper, we highlight an
architecture of such a home-box overlay for Video On Demand (VOD) services, in
cooperation with a network-aware request redirection and content caching
strategy that optimize the resource usage at both network and client side to
reduce the overall distribution cost. The proposed system is compared to
existing solutions through comprehensive simulations. The results demonstrate
the strong advantage of introducing such a network-aware and popularity-based
caching strategy in terms of cost reduction for VOD services, especially for
Content Delivery Networks.
