Optimal Output-Feedback Control Over Markov Wireless Communication Channels

• 成果类型: Article
• 署名作者: Impicciatore, Anastasia; Lun, Yuriy Zacchia; Pepe, Pierdomenico; D'Innocenzo, Alessandro
• 署名单位: University of L'Aquila
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2023.3328268
• 发表日期: 2024
• 页码: 1643-1658
• 关键词: Finite-state Markov channels (FSMCs); separation principle; wireless control networks (WCNs)

摘要

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 with double-sided packet losses: on the sensor-controller link (sensing link) and the 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 article, 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, i.e., 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.