Anytime Control Under Practical Communication Models

• 成果类型: Article
• 署名作者: Liu, Wanchun; Quevedo, Daniel E.; Li, Yonghui; Vucetic, Branka
• 署名单位: University of Sydney; Queensland University of Technology (QUT)
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2021.3115422
• 发表日期: 2022
• 页码: 5400-5407
• 关键词: Wireless sensor networks; Wireless communication; Markov processes; Fading channels; computational modeling; actuators; Stability criteria; control over communications; Markov fading channels; Nonlinear systems; stability of nonlinear systems

摘要

In this article, we investigate a novel anytime control algorithm for wireless networked control with random dropouts. The controller computes sequences of tentative future control commands using time-varying (Markovian) computational resources. The sensor-controller and controller-actuator channel states are spatial- and time-correlated, respectively, and are modeled as a multistate Markov process. To compensate the effect of packet dropouts, a dual-buffer mechanism is proposed. We develop a novel cycle-cost-based approach to obtain the stability conditions on the nonlinear plant, controller, network, and computational resources.