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Analyse de la robustesse et des améliorations potentielles du protocole RadioFréquences Sub-GHz KNX utilisé pour l’IoT domotique

Abstract : This thesis addresses the performance of the KNX-RF protocol used for home automation applications in terms of radiofrequency robustness in a multi-protocol environment that is potentially subject to interferences. In this work, the aim is to assess the interference problems encountered by KNX-RF using simulation models that would increase its RF reliability. Thus, a first model was developed on MATLAB / Simulink and allowed to investigate the performance and limitations of this protocol at its physical layer in an interference scenario occurring inside a multiprotocol home and building automation box/gateway. These simulations were followed by field experimental tests in an indoor environment (house) to verify the results. A second model was developed to evaluate the MAC layer mechanisms of KNX-RF through the discrete event simulator OMNeT ++/Mixim. This model includes all the mechanisms of channel access and frequency agility specified by KNX-RF standard. A frame collision scenario was simulated and several improvement proposals are discussed in this manuscript. The developed models can be used to analyze and predict in advance phase the behavior of KNX-RF in a radio-constrained environment.
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https://tel.archives-ouvertes.fr/tel-01467429
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Submitted on : Thursday, March 28, 2019 - 11:29:17 AM
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  • HAL Id : tel-01467429, version 2

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Salma Oudji. Analyse de la robustesse et des améliorations potentielles du protocole RadioFréquences Sub-GHz KNX utilisé pour l’IoT domotique. Electronique. Université de Limoges, 2016. Français. ⟨NNT : 2016LIMO0121⟩. ⟨tel-01467429v2⟩

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