Control of Cyber–Physical Systems Under Consecutive Packet Losses: A Dual-Channel Relay Scheme With Energy Harvesting

This study mainly focuses on the observer-based control problem of cyber-physical systems equipped with dual channel energy-harvesting relays. In order to expand communication coverage and maintain long-term operation, a decode-and-forward relay driven by energy harvesting technology is introduced. During the transmission of codewords, consecutive packet losses may occur due to stochastic network conditions, which is modeled as bounded stochastic communication delay. To address this issue, an observer-based remote control strategy incorporating stochastic delay modeling is developed to guarantee that the closed-loop dynamics ultimately maintain exponential mean square boundedness. By utilizing stochastic stability theory and inequality based analysis techniques, a set of conditions for the expected existence of the controller is derived. Obtain the corresponding estimated gain and control gain by solving the linear matrix inequality (LMI). Numerical experiments are carried out to validate the stability and reliability of the developed control approach.