Usage of ZigBee and LoRa wireless technologies in IoT systems

IoT systems are based sensors and actuators to enable ubiquitous sensing to measure environment parameters from delicate ecologies and natural environments to urban environments. By connecting these sensors and actuators to a big network, like internet, an automatization can be performed, and repetitive actions can be done in background by the IoT ecosystem and save a lot of time. IoT can do such things in Home Automation, Smart Cities and even in Air Quality analysis. IoT solution are dependent on the way sensors are transmitting data to cloud or up to the internet. This paper will present the benefits of using Zig Bee instead of using traditional Wi-Fi sensor and present some of the characteristics of LoRa sensors. Cloud computing contributed to the expansion of the IoT systems by offloading local IoT devices of computation intensive tasks. Fog computing brings Cloud closer to the sensors and by doing this minimize communication latencies.