Nowadays, cloud computing is a widely debated topic. In fact, there are many scientific works that apply the cloud technology to different fields including energy efficiency [1], storage [2], eHealth [3], dataweb [4], and Internet of Things (IoT)[5].In particular, considering the IoT scenario, the increasing penetration of sensing and actuating devices is modifying the way of how Internet services and applications are both conceived and consumed. The integration of distributed sensor networks with cloud computing systems is raising the interest of both the academic and industrial communities. Developments and progress in this area pave the way toward novel scenarios for IoT applications. Virtualisation generates pools of (virtual) sensors and actuators, and these, in turn, form new types of on-demand IoT resources available over the cloud. These IoT resources are delivered and accessible in form of IoT as a service …