Age of information in IoT-based networked control systems: A MAC perspective

Timeliness of information is critical for accurate decision making in data-driven systems. As large-scale systems based on Internet of Things (IoT) technologies start populating shop floors, their performance in terms of timeliness must be assessed. This work analyzes age of information (AoI) in IoT...

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Bibliographic Details
Published in:Automatica (Oxford) 2023-01, Vol.147, p.110652, Article 110652
Main Authors: Mena, Juan P., Núñez, Felipe
Format: Article
Language:English
Subjects:
Age of information
Internet of Things
Medium access control
Networked control systems
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Summary:Timeliness of information is critical for accurate decision making in data-driven systems. As large-scale systems based on Internet of Things (IoT) technologies start populating shop floors, their performance in terms of timeliness must be assessed. This work analyzes age of information (AoI) in IoT-based control systems, where independent control loops share a wireless network. Analytical expressions for AoI under two typical MAC schemes used in IoT systems: CSMA/CA and TDMA are given and validated by simulations. The significance of the results is illustrated in the context of a design example.
ISSN:0005-1098
1873-2836
DOI:10.1016/j.automatica.2022.110652