Next Article in Journal
A Novel Fuzzy Entropy-Based Method to Improve the Performance of the Fuzzy C-Means Algorithm
Previous Article in Journal
Distribution System Renewable Hosting Capacity Maximization with Second-use Electric Vehicle Storage Using Critical Capacity Retention Calculation Model
Previous Article in Special Issue
A Novel MAC Protocol for Low Datarate Cooperative Mobile Robot Teams

This is an early access version, the complete PDF, HTML, and XML versions will be available soon.

Open AccessArticle

Comparative Assessment of the LoRaWAN Medium Access Control Protocols for IoT: Does Listen before Talk Perform Better than ALOHA?

Department of Electrical, Electronics and Computer Engineering, University of Catania, 95124 Catania, Italy
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(4), 553; https://doi.org/10.3390/electronics9040553
Received: 4 March 2020 / Revised: 21 March 2020 / Accepted: 23 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue Emerging Trends in Industrial Communication)
Low-Power Wide-Area Networks (LPWANs) are emerging as appealing solutions for several Internet of Things (IoT) applications, such as healthcare, smart cities and Industry 4.0, thanks to their ease of deployment, low energy consumption and large coverage range. LoRaWAN is one of the most successful LPWAN standards, as it supports robust long-distance communications using low-cost devices. To comply with the ETSI regulations, LoRaWAN can adopt as medium access control (MAC) layer either a pure ALOHA approach with duty-cycle limitations or a polite spectrum access technique, such as Listen Before Talk (LBT). The two approaches have their pros and cons that need to be carefully evaluated. The studies in the literature that so far have addressed an evaluation of MAC protocols for LoRaWAN refer to a previous and now obsolete version of the ETSI regulations, therefore they do not take into account the current limits on the timing parameters for polite spectrum access, such as that maximum time an end-node is allowed to be transmitting per hour. For this reason, the contribution of this work is two-fold. First, the paper discusses the restrictions that the current ETSI regulations impose on some timing parameters of the two kinds of MAC protocols for LoRaWAN. Second, the paper provides comparative performance assessments of the two protocols through simulations in realistic scenarios under different workload conditions.
Keywords: LoRaWAN; Internet of Things; Low-Power Wide-Area networks; Medium Access Control protocols; Listen Before Talk; ALOHA LoRaWAN; Internet of Things; Low-Power Wide-Area networks; Medium Access Control protocols; Listen Before Talk; ALOHA
MDPI and ACS Style

Leonardi, L.; Lo Bello, L.; Battaglia, F.; Patti, G. Comparative Assessment of the LoRaWAN Medium Access Control Protocols for IoT: Does Listen before Talk Perform Better than ALOHA? Electronics 2020, 9, 553.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop