Invited lecture of Ladislav Polák at the 7th International Conference on ACIMUTT-FIDTV'22

Location: 7th International Conference on ACIMUTT-FIDTV'22 (online)
Date: 01. 11. 2022
Title of the lecture: LoRa in the 2.4 GHz band – coexistence issues and indoor localization

Lecture annotation:
Long-Range, more known under its abbreviation LoRa, is one of the most utilized technologies belonging to Low Power Wide Area Networks (LPWANs). Originally, it has been developed for sub-GHz bands for uses cases that are closely connected with the Internet-of-Things (IoT) paradigm. LoRa, introduced in 2012, has its name derived from the capability of communicating with a very high link budget with low received power, which means long range communication is possible. Currently, on the market, it is also possible to find low power transceivers, which enable to realize a LoRa-based communication link in the 2.4 GHz license-free band. The presence of LoRa in this RF band will increase the amount of new use cases and also unwanted cross-technology interferences. The main purpose of this presentation is twofold. Firstly, coexistence scenarios that can be occur between LoRa and other wireless systems operating in the 2.4 GHz band are defined. Next, according to laboratory-based measurements, the immunity of LoRa against the interfering signals coming from the coexistence with other systems is evaluated and discussed. Secondly, attention in the presentation is devoted to LoRa technology utilizing 2.4 GHz band for indoor localization purposes. The performance of LoRa under the studied use case scenarios will be discussed.

About doc. Ing. Ladislav Polák, Ph.D.
Ladislav Polak (Member, IEEE) He received the M.Sc. and Ph.D. degrees in electronics and communication from the Brno University of Technology (BUT), Brno, Czech Republic, in 2009 and 2013, respectively. He is currently an Associate Professor at the Department of Radio Electronics (DREL), BUT. His research interests are mobile and wireless communication systems, RF measurement, data and signal processing, and computer-aided analysis.

 

Responsible person Ing. et Ing. arch. Jana Němcová
Date of publication