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POLÁK, L. PAUL, F. ŠIMKA, M. ZEDKA, R. KUFA, J. ŠOTNER, R.
Original Title
On the Interference between LoRa and Bluetooth in the 2.4 GHz Unlicensed Band
Type
conference paper
Language
English
Original Abstract
Long-Range (LoRa) is one of the most employed technologies in the Low Power Wide Area Networks (LPWANs), primarily developed for sub-1 GHz radio frequency (RF) band. Nowadays, mainly thanks to hardware support from company Semtech, LoRa-based wireless links can be also realized in the 2.4 GHz unlicensed band. However, this RF band is dominantly utilized by other systems (e.g. Wi-Fi and Bluetooth). Thereby, issues with coexistence between them and LoRa can arise. This paper investigates the influence of Bluetooth (as an interfere) on the LoRa-based 2.4 GHz wireless link at co-channel and in-band coexistence scenarios. A laboratory-based measurement setup is created to measure the immunity of LoRa against Bluetooth in terms of protection ratio (PR). The evaluated results show high robustness of LoRa in the studied scenarios, but this robustness is highly depending on the used LoRa system configuration.
Keywords
Bluetooth, carrier-to-interference ratio, coexistence, interference, IoT, LoRa, LPWAN, RF measurement
Authors
POLÁK, L.; PAUL, F.; ŠIMKA, M.; ZEDKA, R.; KUFA, J.; ŠOTNER, R.
Released
21. 4. 2022
Location
Kosice, Slovakia
ISBN
978-1-7281-8686-3
Book
32nd International Conference Radioelektronika
Pages from
14
Pages to
17
Pages count
4
URL
https://ieeexplore.ieee.org/abstract/document/9764912
BibTex
@inproceedings{BUT178283, author="Ladislav {Polák} and Filip {Paul} and Marek {Šimka} and Radim {Zedka} and Jan {Kufa} and Roman {Šotner}", title="On the Interference between LoRa and Bluetooth in the 2.4 GHz Unlicensed Band", booktitle="32nd International Conference Radioelektronika", year="2022", pages="14--17", address="Kosice, Slovakia", doi="10.1109/RADIOELEKTRONIKA54537.2022.9764912", isbn="978-1-7281-8686-3", url="https://ieeexplore.ieee.org/abstract/document/9764912" }