Multi-operator service optimization for Fixed Access Network Sharing (FANS)

This paper describes the concept of Fixed Access Network Sharing (FANS), a new way of virtualizing broadband access that enables multiple operators to share a network. FANS will offer a vibrant broadband environment, economically sharing costs among multiple operators. FANS will help speed the deployment of super-fast broadband and provide a platform for virtual operators to offer innovative new services. FANS is intrinsically involved with resource sharing, and a framework for optimizing resource allocation with general utility functions is presented here. A specific example of optimal resource allocation across a next-generation DSL interference channel is analyzed in detail.