A Framework to Quantify the Benefits of Network Functions Virtualization   in Cellular Networks
  Network functions virtualization (NFV) is an appealing vision that promises to dramatically reduce capital and operating expenses for cellular providers. However, existing efforts in this space leave open broad issues about how NFV deployments should be instantiated or how they should be provisioned. In this paper, we present an initial attempt at a framework that will help network operators systematically evaluate the potential benefits that different points in the NFV design space can offer. 
Zafar Ayyub Qazi, Vyas Sekar, Samir Das
cs.NI