Balancing the Energy Consumption and Latency of Over-the-Air Firmware Updates in LoRaWAN

Fuente: arXiv
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Main Author: Borkotoky, Siddhartha S.
Format: Preprint
Published: 2025
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author Borkotoky, Siddhartha S.
author_facet Borkotoky, Siddhartha S.
contents Over-the-air firmware updates are crucial for mitigating security threats and maintaining up-to-date device functionality in Long Range Wide Area Networks (LoRaWANs). LoRaWAN end devices are usually energy-constrained, and LoRaWAN transmissions are subject to duty-cycle restrictions. Consequently, controlling the energy expenditure and update-delivery latency of FUOTA are key challenges. We propose a flexible scheme that achieves a tunable trade-off between the energy consumption and delivery delay. The scheme employs the LoRa spreading factors sequentially to transmit update-carrying frames, sending a fixed number of frames with a given spreading factor before moving to the next. By adjusting the smallest spreading factor to be used and the number of transmissions per spreading factor, a suitable energy-delay trade-off can be achieved. Thus, time-sensitive updates, such as security patches, may be sent with a low-delay-high-energy setting, whereas a more energy-efficient but higher-delay setting may be used for non-critical updates.
format Preprint
id arxiv_https___arxiv_org_abs_2508_10588
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Balancing the Energy Consumption and Latency of Over-the-Air Firmware Updates in LoRaWAN
Borkotoky, Siddhartha S.
Networking and Internet Architecture
Over-the-air firmware updates are crucial for mitigating security threats and maintaining up-to-date device functionality in Long Range Wide Area Networks (LoRaWANs). LoRaWAN end devices are usually energy-constrained, and LoRaWAN transmissions are subject to duty-cycle restrictions. Consequently, controlling the energy expenditure and update-delivery latency of FUOTA are key challenges. We propose a flexible scheme that achieves a tunable trade-off between the energy consumption and delivery delay. The scheme employs the LoRa spreading factors sequentially to transmit update-carrying frames, sending a fixed number of frames with a given spreading factor before moving to the next. By adjusting the smallest spreading factor to be used and the number of transmissions per spreading factor, a suitable energy-delay trade-off can be achieved. Thus, time-sensitive updates, such as security patches, may be sent with a low-delay-high-energy setting, whereas a more energy-efficient but higher-delay setting may be used for non-critical updates.
title Balancing the Energy Consumption and Latency of Over-the-Air Firmware Updates in LoRaWAN
topic Networking and Internet Architecture
url https://arxiv.org/abs/2508.10588