Slotted ALOHA Overlay on LoRaWAN - A Distributed Synchronization Approach

LoRaWAN is one of the most promising standards for IoT applications. Nevertheless, the high density of end-devices expected for each gateway, the absence of an effective synchronization scheme between gateway and end-devices, challenge the scalability of these networks. In this article, we propose t...

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Bibliographic Details
Published in2018 IEEE 16th International Conference on Embedded and Ubiquitous Computing (EUC) pp. 129 - 132
Main Authors Polonelli, Tommaso, Brunelli, Davide, Benini, Luca
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2018
Subjects
Bandwidth
Clocks
Internet of Things
Logic gates
Long Range Radio
LoRaWAN
Protocols
Scalability
Synchronization
Uncertainty
Wireless networks
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DOI10.1109/EUC.2018.00026

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Summary:LoRaWAN is one of the most promising standards for IoT applications. Nevertheless, the high density of end-devices expected for each gateway, the absence of an effective synchronization scheme between gateway and end-devices, challenge the scalability of these networks. In this article, we propose to regulate the communication of LoRaWAN networks using a Slotted-ALOHA instead of the classic ALOHA approach used by LoRa. The implementation is an overlay on top of the standard LoRaWAN; thus no modification in pre-existing LoRaWAN firmware and libraries is necessary. Our method is based on a novel distributed synchronization service that is suitable for low-cost IoT end-nodes. S-ALOHA supported by our synchronization service significantly improves the performance of traditional LoRaWAN networks regarding packet loss rate and network throughput.
DOI:10.1109/EUC.2018.00026