SUMMON: Gathering smart city data to support IoT-Fog-Cloud simulations

Following the recent technological trends in the Information and Communications Technology (ICT) world, Internet of Things (IoT) environments generate unprecedented amounts of data that should be stored, processed and analyzed. Though the use Cloud solutions has already started to dominate the Internet, with the appearance of a growing number of communicating things IoT-Fog-Cloud systems are being formed. Cloud and Fog technologies can be used to aid data management tasks, but their application give birth to complex systems that still needs a significant amount of research. The goal of our research is to provide means for simulating and investigating real IoT-Fog-Cloud systems. In this paper we take the first steps towards our aims, and analyze sensor data formats and datasets of Smart Cities, then propose a tool called SUMMON to provide means for gathering and filtering open datasets. We discuss how IoT data could be made available for simulation environments, and we also exemplify its utilization in an open source IoT device simulator.