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Développement de réseaux radio d'objets connectés pour les Villes Intelligentes : amélioration de la Qualité de Service du réseau LoRa

Abstract : The objective of this thesis is the development of new mechanisms to improve the quality of service for LPWAN in the context of Smart Cities. First, we analyze the evolution of the quality of service by observing the packet error rate (PER) of the MAC layer of different LPWAN standards, subject to network densification. Second, we focus on LoRa technology, where we identify obstacles to be raised, including the rate of rejected packets, the collisions between packets and the number of gateways deployed, in different network densification scenarios. We then introduce a new protocol called LoRa+ based on «Listening Before Talking, LBT». Finally, we use « Okumura-Hata » tools and metrics to analyze and compare the performance of this new protocol with LoRa in several types of networks, and we demonstrate that LoRa+ proves to be a timely choice, reducing both rejected packet rate and packet error rate as well as the number of gateways deployed in networks.
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https://hal.archives-ouvertes.fr/tel-02415918
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Submitted on : Tuesday, December 17, 2019 - 1:52:52 PM
Last modification on : Tuesday, March 10, 2020 - 11:39:10 AM
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  • HAL Id : tel-02415918, version 1

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Maxime Mroue. Développement de réseaux radio d'objets connectés pour les Villes Intelligentes : amélioration de la Qualité de Service du réseau LoRa. Electronique. UNIVERSITE DE NANTES, 2019. Français. ⟨tel-02415918⟩

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