University of Oulu

K. Mikhaylov and A. Pouttu, "On Spatial Diversity for LoRaWAN: Experimental Evaluation of Performance of a Dual-Gateway Network With and Without Downlink," 2019 11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), Dublin, Ireland, 2019, pp. 1-5. doi: 10.1109/ICUMT48472.2019.8971008

On spatial diversity for LoRaWAN : experimental evaluation of performance of a dual-gateway network with and without downlink

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Author: Mikhaylov, Konstantin1,2; Pouttu, Ari1
Organizations: 1Centre for Wireless Communications, University of Oulu, Oulu, Finland
2Faculty of Electrical Engineering and Communication, Brno University of Technology, Brno, Czech
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.3 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2020-02-18


The Low Power Wide Area Networks (LPWANs) is today seen as one of the key connectivity enablers for the massive Internet-of-Things (IoT) applications. In this paper, we experimentally study the performance of a LoRaWAN network composed of multiple end devices and two independently operating gateways (GW) for the case of uplink-only and uplink- downlink traffic. Our results demonstrate that even though the spatial diversity due to the use of multiple GWs improves the performance of the network for the packet error rate, it still does not guarantee low packet loss under heavy uplink network traffic. Nonetheless, when the downlink traffic is present, a second GW operating in the uplink-only mode can dramatically increase the uplink packets delivery rate in the network. Therefore, we consider that spatial decoupling of receiver and transmitters, or addition of uplink-only GWs may become an efficient way to improve the performance of LoRaWAN networks with downlink traffic. Even though the limited laboratory environment might have affected the results of our measurements, we expect that many of the observed trends will also stand for the real-life LoRaWAN deployments. For this reason, the presented results might be interesting both for analysts and practitioners working in the field.

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Series: International Conference on Ultra Modern Telecommunications and Workshops
ISSN: 2157-0221
ISSN-E: 2157-023X
ISSN-L: 2157-0221
ISBN: 978-1-7281-5764-1
ISBN Print: 978-1-7281-5765-8
Article number: 8971008
DOI: 10.1109/ICUMT48472.2019.8971008
Host publication: 2019 11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)
Conference: International Congress on Ultra Modern Telecommunications and Control Systems and Workshops
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The measurements were undertaken in the context of the P2P-SMARTEST project, an Innovation Action funded by the H2020 Programme, contract number 646469. The analysis was done as a part of the LPWAN-evolution activity funded by the University of Oulu. This work is also supported by the Academy of Finland 6Genesis Flagship under Grant no. 318927. The work of K. Mikhaylov was also supported by the mobility project MeMoV, No. CZ.02.2.69/0.0/0.0/16_027/00083710, of Czech Ministry of Education, Youth and Sport, funded by European Social Fund and LPWAN-evolution activity funded by the University of Oulu.
EU Grant Number: (646469) P2P-SmarTest - Peer to Peer Smart Energy Distribution Networks (P2P-SmartTest)
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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