Optimal output-feedback control over Markov wireless communication channels

The communication links connecting components of wireless control systems may be affected by packet losses due to time-varying fading and interference. We consider a wireless control network (WCN) with double-sided packet-losses: on the sensor-controller link (sensing link) and controller-actuator l...

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Bibliographic Details
Published in:IEEE transactions on automatic control Vol. 69; no. 3; pp. 1 - 16
Main Authors: Impicciatore, Anastasia, Lun, Yuriy Zacchia, Pepe, Pierdomenico, D'Innocenzo, Alessandro
Format: Journal Article
Language:English
Published: New York IEEE 01.03.2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Actuation
Actuators
Channel estimation
Channels
Control systems
Controllers
Delays
Feedback control
finite-state Markov channels
Markov processes
Observers
Output feedback
Packet loss
separation principle
State estimation
State observers
Wireless communication
Wireless communications
Wireless control networks
Wireless sensor networks
ISSN:0018-9286, 1558-2523
Online Access:Get full text
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Summary:The communication links connecting components of wireless control systems may be affected by packet losses due to time-varying fading and interference. We consider a wireless control network (WCN) with double-sided packet-losses: on the sensor-controller link (sensing link) and controller-actuator link (actuation link). We model the sensing and actuation links as finite-state Markov channels (FSMCs). One time-step delay affects the actuation link mode observation, while the sensing link mode observation is not affected by any delay. In this paper, we solve, as our main contribution, the optimal output-feedback control problem in this FSMC setting (under a TCP-like communication scheme) using two different state estimation techniques: Luenberger observer and current estimator, comparing the two methodologies and deriving a separation principle for both the cases. We also derive detectability conditions guaranteeing the existence of an optimal observer, either Luenberger or current.
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ISSN:0018-9286
1558-2523
DOI:10.1109/TAC.2023.3328268