An Open-Source LoRa Physical Layer Prototype on GNU Radio

Joachim Tapparel, Orion Afisiadis, Paul Mayoraz, Alexios Balatsoukas-Stimming, Andreas Burg

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

LoRa is the proprietary physical layer (PHY) of LoRaWAN, which is a popular Internet-of-Things (IoT) protocol enabling low-power devices to communicate over long ranges. A number of reverse engineering attempts have been published in the last few years that helped to reveal many of the LoRa PHY details. In this work, we describe our standard-compatible LoRa PHY software-defined radio (SDR) prototype based on GNU Radio. We show how this SDR prototype can be used to develop and evaluate receiver algorithms for LoRa. As an example, we describe the sampling time offset and the carrier frequency offset estimation and compensation blocks. We experimentally evaluate the error rate of LoRa, both for the uncoded and the coded cases, to illustrate that our publicly available open-source implementation is a solid basis for further research.

Originele taal-2Engels
Titel2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2020
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's5
ISBN van elektronische versie9781728154787
DOI's
StatusGepubliceerd - mei 2020
Evenement21st IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2020 - Atlanta, Verenigde Staten van Amerika
Duur: 26 mei 202029 mei 2020

Congres

Congres21st IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2020
LandVerenigde Staten van Amerika
StadAtlanta
Periode26/05/2029/05/20

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