RHC of networked nonlinear systems with two-channel packet dropouts

Abstract

A novel RHC-based control strategy is proposed, including an efficient control packet design and transmission mechanism that can reduce transmission load. The optimization is carried out only when new information provided by the S-C packet dropouts and the acknowledgment packets are available. Thus, optimization is not needed for all the time instants and the computational load from solving the optimization problem can be reduced. Furthermore, a transmission mechanism over the C-A channel is designed such that only necessary control packets are transmitted from the controller node to the actuator node (and the control packet is not needed to be transmitted for all the time instants). Such a mechanism can reduce transmission load for the C-A channel. The conditions for guaranteeing the regional input-to-state practical stability of the resulting nonlinear NCSs are established. We present an auxiliary optimization problem from which a novel ISpS-type Lyapunov function is constructed to establish closed-loop stability.