University of Oulu

A. M. Girgis, J. Park, C. -F. Liu and M. Bennis, "Predictive Control and Communication Co-Design: A Gaussian Process Regression Approach," 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Atlanta, GA, USA, 2020, pp. 1-5, doi: 10.1109/SPAWC48557.2020.9154304

Predictive control and communication co-design : a Gaussian process regression approach

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Author: Girgis, Abanoub M.1; Park, Jihong2; Liu, Chen-Feng1;
Organizations: 1Centre for Wireless Communications, University of Oulu, 90570 Oulu, Finland
2Shool of Information Technology, Deakin University, Geelong, VIC 3220, Australia
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2021-02-19


While remote control over wireless connections is a key enabler for scalable control systems consisting of multiple actuator-sensor pairs, i.e., control systems, it entails two technical challenges. Due to the lack of wireless resources, only a limited number of control systems can be served, making the state observations outdated. Further, even after scheduling, the state observations received through wireless channels are distorted, hampering control stability. To address these issues, in this article we propose a scheduling algorithm that reduces the age-of-information (AoI) of the last received states. Meanwhile, for non-scheduled sensor-actuator pairs, we propose a machine learning (ML) aided predictive control algorithm, in which states are predicted using a Gaussian process regression (GPR). Since the GPR prediction credibility decreases with the AoI of the input data, both predictive control and AoI-based scheduler should be co-designed. Hence, we formulate a joint scheduling and transmission power optimization via the Lyapunov optimization framework. Numerical simulations corroborate that the proposed co-designed predictive control and AoI based scheduling achieves lower control errors, compared to a benchmark scheme using a round-robin scheduler without state prediction.

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Series: SPAWC. Signal processing advances in wireless communications
ISSN: 1948-3244
ISSN-E: 1948-3252
ISSN-L: 1948-3244
ISBN: 978-1-7281-5478-7
ISBN Print: 978-1-7281-5479-4
Pages: 1 - 5
Article number: 9154304
DOI: 10.1109/SPAWC48557.2020.9154304
Host publication: 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Conference: IEEE International Workshop on Signal Processing Advances in Wireless Communications
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
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