Fog computing architecture with heterogeneous Internet of Things technologies

The prominence of Internet of Things (IoT) devices is characterized by a wide diversity of network access technologies, including Wi-Fi, Cellular, Lo-Ra, Zigbee or Bluetooth. Dealing with such heterogeneity is still very challenging. Current cloud computing solutions can sustain huge amount of diverse data that are generated by geographically spread IoT devices. However, this task is quite challenging for time-sensitive mobile services. In this paper, we propose a multi-technology service architecture based on Fog computing paradigm for IoT devices to perceive and manage flexible and heterogeneous multi-network access technologies in ubiquitous environments. A novel aspect of this service architecture is to integrate a Smart Gateway Service (SGS) together with a data scheme to describe and store information of IoT multi-technology devices through an Object Service (OS service). Besides, we also propose a procedure to attach and detach IoT devices into fog architecture.