We are glad to inform you that our project partner K3Y has published the paper “M-SADR: Mobile Self Adaptive Data Rate for Enhanced LoRa End-Device Connectivity on the Move” in the International Journal of Communication Systems (IJCS).
The paper addresses one of the critical challenges of the Internet of Things (IoT): ensuring reliable and energy-efficient connectivity for mobile LoRa-enabled end devices. While LoRa (Long Range) networks are widely adopted due to their low-power, wide-area capabilities, supporting device mobility remains a demanding task.
To tackle this, the authors propose Mobile Self Adaptive Data Rate (M-SADR), a lightweight algorithm that allows mobile devices to autonomously select transmission parameters such as spreading factor and power based on previous transmission attempts. Unlike existing methods, M-SADR operates entirely on the end device, requiring minimal processing and storage resources.
The solution was evaluated in two simulation scenarios, with results demonstrating that M-SADR consistently outperforms alternative approaches (ADR-MIN, BADR, and HADR), achieving up to 2.4% higher packet delivery ratio and 5.7% lower energy consumption per successfully delivered packet. Furthermore, the algorithm was validated in a small-scale real-world testbed, confirming its effectiveness in practical deployments.
The publication (DOI: 10.1002/dac.70222) is available online.
Congratulations to the authors!
