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Modeling Time Requirements of CPS in Wireless Networks

Software/Hardware Integration Lab, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
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Sensors 2020, 20(7), 1818; https://doi.org/10.3390/s20071818
Received: 29 January 2020 / Revised: 3 March 2020 / Accepted: 10 March 2020 / Published: 25 March 2020
(This article belongs to the Section Sensor Networks)
In this paper, we present an approach to assess the schedulability and scalability of Cyber-Physical Systems (CPS) Networks through an algorithm that is capable of estimating the load of the network as its utility grows. Our approach evaluates both the network load and the laxity of messages, considering its current topology and real-time constraints while abstracting environmental specificities. The proposed algorithm also accounts for the network unreliability by applying a margin-of-safety parameter. This approach enables higher utilities as it evaluates the load of the network considering a margin-of-safety that encapsulates phenomena such as collisions and interference, instead of performing a worst-case analysis. Furthermore, we present an evaluation of the proposed algorithm over three representative scenarios showing that the algorithm was able to successfully assess the network capacity as it reaches a higher use. View Full-Text
Keywords: Cyber-Physical Systems; network schedulability; network scalability; Real-time Constraints; network load analysis Cyber-Physical Systems; network schedulability; network scalability; Real-time Constraints; network load analysis
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Huegel Richa, C.; M. de Lucena, M.; Passig Horstmann, L.; Conradi Hoffmann, J.L.; Fröhlich, A.A. Modeling Time Requirements of CPS in Wireless Networks. Sensors 2020, 20, 1818.

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