LoRa-based Outdoor 3D Localization

This poster explores how to construct a LoRa propagation model using a modest amount of RSS to achieve a complement for a failed GPS in specific environments. Considering the distribution of LoRa IoT devices and LoRa signal characteristics, we use Thin Plate Spline to construct a 3D model with 36 sampling points to achieve a fit of 99%. We further gain a localization error of <10m in the space of 150x50x22m, achieving a good balance between overhead and accuracy.