Towards Energy-Aware LoRaWAN ADR for Mobile Scenarios Through Dynamic Margin Control
Towards Energy-Aware LoRaWAN ADR for Mobile Scenarios Through Dynamic Margin Control
Geraldo A. Sarmento Neto,T. A. R. Silva,3 Authors,J. V. R. Junior
TLDR
This study enhances the MB-ADR scheme by dynamically adjusting the ADR margin db value based on SNR variability to outperforms standard ADR in high-mobility scenarios and has potential to enhance IoT network performance.
Abstract
In LoRaWAN networks, the ADR mechanism plays an essential role in dynamically adjusting the data rate to optimize energy consumption and network efficiency. However, since it is not suitable for mobile environments, alternative solutions such as MB-ADR have been proposed. This study enhances the MB-ADR scheme by dynamically adjusting the ADR margin db value based on SNR variability. Simulations with up to 1,000 mobile nodes demonstrate a 52.5% improvement in energy efficiency and a 42.18% reduction in latency while preserving packet delivery ratios similar to those of the fixed-margin MB-ADR. The proposed approach outperforms standard ADR in high-mobility scenarios, demonstrating its potential to enhance IoT network performance.