Impact of Terminal Polarization in a Urban Channel for LP-WAN Application
Résumé
In this study, the performance of a wireless communication based on low-power LoRa technology at 868MHz is evaluated in a urban environment. The installation of the vertical polarized gateway and the miniature terminal used for measurement is described for a typical smart city application. Performance in term of received signal and Signal to Noise Ratio (SNR) is given for different communication range and demonstrate a robust communication up to 7km. The influence of the terminal orientation on the transmission quality is evaluated in a real environment. Measurement confirms that the vertical polarization is providing superior SNR for low signal level.