What Is the Best Solution for Smart Buildings? A Case Study of Fog, Edge Computing and Smart IoT Devices

We present a case study of Fog Computing, Edge Computing (EC) and Intelligent EC applied to Smart Cities or Smart buildings, where there is the deployment of innovative services and smart IoT devices, discussing new architecture as Software Defined Network (SDN) and Network Functions Virtualization (NFV). Specifically, a comprehensive solution of a Smart Building case is proposed to validate main statements and conclusions are drawn, providing a general guideline to address the problem of choosing between Edge or Fog Computing and motivating new innovative, cost-benefit solutions that should be applied on it in order to make benefits available to citizens in Smart Cities.