A wireless communication system for environmental monitoring in smart cities
J. K. O. Masudi, Daniel T. Ramotsoela, Gerhard Petrus Hancke · 2017
Monitoring the environment is essential in smart cities. Buildings in urban areas make line of sight communication challenging since communication between sensor nodes has to take place over wide ranges. Most wireless sensor network (WSN) technologies do not perform well at long ranges in non-line-of-sight conditions. In this paper, a wireless communication system for communication in non-line-of-sight conditions in urban areas is designed and implemented. The system consists of a receiver and transmitter. As proof of concept, gas sensors are attached to the transmitter. The receiver is connected to a computer where the received gas readings can be visualized on a graphical user interface.