LoRa Mobile-To-Base-Station Channel Characterization in the Antarctic
AbstractAntarctic conditions demand that wireless sensor nodes are operational all year round and that they provide a large communication range of several tens of kilometers. LoRa technology operating in sub-GHz frequency bands implements these wireless links with minimal power consumption. The employed chirp spread spectrum modulation provides a large link budget, combined with the excellent radio-wave propagation characteristics in these bands. In this paper, an experimental wireless link from a mobile vehicle which transmits sensor data to a base station is measured and analyzed in terms of signal-to-noise ratio and packet loss. These measurements confirm the usefulness of LoRa technology for wireless sensor systems in polar regions. By deploying directional antennas at the base station, a range of up to 30 km is covered in case of Line-of-Sight radio propagation in both the 434 and 868 MHz bands. Varying terrain elevation is shown to be the dominating factor influencing the propagation, sometimes causing the Line-of-Sight path to be obstructed. Tropospheric radio propagation effects were not apparent in the measurements. View Full-Text
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Gaelens, J.; Van Torre, P.; Verhaevert, J.; Rogier, H. LoRa Mobile-To-Base-Station Channel Characterization in the Antarctic. Sensors 2017, 17, 1903.
Gaelens J, Van Torre P, Verhaevert J, Rogier H. LoRa Mobile-To-Base-Station Channel Characterization in the Antarctic. Sensors. 2017; 17(8):1903.Chicago/Turabian Style
Gaelens, Johnny; Van Torre, Patrick; Verhaevert, Jo; Rogier, Hendrik. 2017. "LoRa Mobile-To-Base-Station Channel Characterization in the Antarctic." Sensors 17, no. 8: 1903.