Resource Allocation Mechanism for LoRaWAN based on the Priority for IoT Applications

• Eduardo Lima UFPA
• Nagib Matni UFPA
• Jean Moraes UFPA
• Helder Oliveira UFPA http://orcid.org/0000-0003-3143-6280
• Denis Rosário UFPA http://orcid.org/0000-0003-1119-2450
• Eduardo Cerqueira UFPA http://orcid.org/0000-0003-2162-6523

DOI: https://doi.org/10.5753/sbcup.2020.11206

Abstract

The increase in the number of LoRaWAN devices connected has in- creased collisions and interference on the network. In this sense, there is a need for a mechanism to manage the propagation factor used by devices during trans- missions. However, the existing mechanisms do not address the priority of applications, causing devices with essential functions to have the same treatment as devices with less important functions, bringing less security from the application. This article proposes the PRA, a mechanism for allocating propagation factor according to the level of importance of the application, prioritizing applications with high and medium priority. Simulations show that the PRA reduces air time and energy consumption by up to 85% and 80% for groups of high and medium priority devices, respectively, compared to state-of-the-art mechanisms.

Keywords: Internet of Things, Sensor network

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