Improving Downlink Scalability in LoRaWAN

Valentina Di Vincenzo 1, 2 Martin Heusse 2 Bernard Tourancheau 2
2 Drakkar
LIG - Laboratoire d'Informatique de Grenoble
Abstract : Despite LoRaWAN offers many advantages, one of its main limitation is the insufficient downlink capacity in large-scale scenarios. This makes reliable communication impractical as, in LoRaWAN, reliability is achieved through the acknowledgment of confirmed messages. The contribution of this paper is to provide a comprehensive description of the problems associated with the presence of downlink traffic and to propose solutions to enable the use of acknowledgements for low to medium downlink load. The proposed mechanisms build on a more adequate and flexible choice of the gateway for each downlink transmission by the network server. Thus, they are entirely compatible with existing LoRaWAN technologies and deployments. Our simulation results show that the proposed solutions enable the successful realization of a higher percentage of LoRaWAN confirmed messages. Thus, the common practice of strongly discouraging the use of confirmed messages could be reconsidered to allow applications that require reliable communication.
Type de document :
Communication dans un congrès
IEEE International Conference on Communications, May 2019, Shanghai, China
Liste complète des métadonnées
Contributeur : Valentina Di Vincenzo <>
Soumis le : mercredi 6 février 2019 - 17:00:45
Dernière modification le : vendredi 8 février 2019 - 01:05:32


  • HAL Id : hal-02009970, version 1



Valentina Di Vincenzo, Martin Heusse, Bernard Tourancheau. Improving Downlink Scalability in LoRaWAN. IEEE International Conference on Communications, May 2019, Shanghai, China. 〈hal-02009970〉



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