Compass Aided TDoA Tracking in LoRaWAN Networks

Nico Podevijn, Jens Trogh, Michiel Aernouts, Rafael Berkvens, Luc Martens, Maarten Weyn, Wout Joseph, David Plets

Abstract: Abstract—LoRWAN nodes can be localized using the TDoA (Time Difference of Arrival) approach. A big advantage is that the geo-location does not consume a lot of energy when compared to GPS approaches. Depending on the use case, the accuracy of the geo-localization (200m) might be a disadvantage. Therefore we propose activating an E-compass in the LoRa node and frequently communicating this directional information over the LoRaWAN network. This extra information can then be fused with TDoA in a map matching algorithm to improve the estimations. We show that our sensor fusion technique is 8 times more accurate than raw TDoA at the cost of only embedding a low-cost e-compass.
Published in: 2020 IEEE/ION Position, Location and Navigation Symposium (PLANS)
April 20 - 23, 2020
Hilton Portland Downtown
Portland, Oregon
Pages: 1420 - 1424
Cite this article: Podevijn, Nico, Trogh, Jens, Aernouts, Michiel, Berkvens, Rafael, Martens, Luc, Weyn, Maarten, Joseph, Wout, Plets, David, "Compass Aided TDoA Tracking in LoRaWAN Networks," 2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), Portland, Oregon, April 2020, pp. 1420-1424.
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