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Outdoor ranging and positioning based on LoRa modulation
Authors
Pascal Müller
Luciano Sarperi
Christof Schüpbach
Hannes Stoll
Publication date
15 June 2021
Publisher
'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Cite
Abstract
© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.We present results for outdoor ranging and positioning based on the Long-Range (LoRa) modulation, which is a widespread wireless IoT technology. LoRa systems typically operate in sub-GHz frequency bands with only 125 kHz bandwidth, which restricts the ranging performance due to the limited temporal resolution. The investigated LoRa ranging method operates in the 2.4 GHz ISM frequency band and supports wider bandwidths, achieving for outdoor ranging a mean distance error below 50 m over distances of up to 1400 m. Positioning based on LoRa ranging obtained a measured Distance Root Mean Square (DRMS) error of 30 m, which reduced to 5 m for tracking of a mobile node, making it a suitable method for approximate outdoor positioning and tracking of IoT devices without using Global Navigation Satellite Systems (GNSS)
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Last time updated on 21/08/2021