Control of battery-powered NCSs with channel assignment and power allocation

This paper investigates the simultaneous stabilization of a collection of battery-powered systems with limited bandwidth and power resources. Each time the channel can only accommodate one plant for communication and each sensor can transmit data to the remote controller using high power for limited times. Based on the average dwell time technique, sufficient conditions on the exponential mean square stability of a single plant are given first. Then, a set of schedulable conditions is obtained for periodic scheduling policy based on the simultaneous stability analysis. Finally, a new framework for channel scheduling, power allocation and stabilizing control is constructed, which can guarantee a desired decay rate for each plant and minimal energy consumption for the group of plants. The effectiveness of the methodology is demonstrated with numerical simulations.