The present invention relates generally to a system for managing bandwidth usage in a content delivery system such as a Video on Demand (VOD) network. Specifically, an Edge Resource Manager (ERM) makes use of a number of policies to optimally select a transmission device such as a Quadrature Amplitude...http://www.google.de/patents/US20060236358?utm_source=gb-gplus-sharePatent US20060236358 - System and method for edge resource management