University of Oulu

Performance of a low-power wide-area network based on LoRa technology: Doppler robustness, scalability, and coverage. Juha Petäjäjärvi, Konstantin Mikhaylov, Marko Pettissalo, Janne Janhunen, Jari Iinatti. International Journal of Distributed Sensor Networks Vol 13, Issue 3 First published date: March-17-2017 10.1177/1550147717699412

Performance of a low-power wide-area network based on LoRa technology : Doppler robustness, scalability, and coverage

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Author: Petäjäjärvi, Juha1; Mikhaylov, Konstantin1; Pettissalo, Marko2;
Organizations: 1Centre for Wireless Communications, University of Oulu, Oulu, Finland
2Nokia, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.7 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe201703225357
Language: English
Published: SAGE Publications, 2017
Publish Date: 2017-03-22
Description:

Abstract

The article provides an analysis and reports experimental validation of the various performance metrics of the LoRa low-power wide-area network technology. The LoRa modulation is based on chirp spread spectrum, which enables use of low-quality oscillators in the end device, and to make the synchronization faster and more reliable. Moreover, LoRa technology provides over 150 dB link budget, providing good coverage. Therefore, LoRa seems to be quite a promising option for implementing communication in many diverse Internet of Things applications. In this article, we first briefly overview the specifics of the LoRa technology and analyze the scalability of the LoRa wide-area network. Then, we introduce setups of the performance measurements. The results show that using the transmit power of 14 dBm and the highest spreading factor of 12, more than 60% of the packets are received from the distance of 30 km on water. With the same configuration, we measured the performance of LoRa communication in mobile scenarios. The presented results reveal that at around 40 km/h, the communication performance gets worse, because duration of the LoRa-modulated symbol exceeds coherence time. However, it is expected that communication link is more reliable when lower spreading factors are used.

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Series: International journal of distributed sensor networks
ISSN: 1550-1329
ISSN-E: 1550-1477
ISSN-L: 1550-1329
Volume: 13
Issue: 3
Pages: 1 - 16
DOI: 10.1177/1550147717699412
OADOI: https://oadoi.org/10.1177/1550147717699412
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
Funding: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was partially funded by the Finnish Funding Agency for Innovation (Tekes) through VIRPA-C project.
Copyright information: © The Author(s) 2017. Creative Commons CC-BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (http://www.uk.sagepub.com/aboutus/ openaccess.htm).
  https://creativecommons.org/licenses/by/4.0/