This study investigates networked control systems (NCSs), whose sensors communicate with remote controllers via a wireless fading channel. The sensor can choose different power levels at which it can transmit its measurement to the controller. The transmission power is selected according to a given probability distribution. The level of transmission power determines the probability of packet loss. The objective of this study is to find an appropriate transmission power probability distribution and a system controller jointly such that NCSs can be exponentially stabilized within a given energy budget. By the average dwell time technique, sufficient conditions for almost sure stability and an optimal sensor power probability distribution maximizing the stability margin are obtained. The effectiveness of the results is demonstrated by numerical simulations.
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Wang, L., Guo, G. & Zhuang, Y. Stabilization of NCSs by random allocation of transmission power to sensors. Sci. China Inf. Sci. 59, 067201 (2016). https://doi.org/10.1007/s11432-016-5563-3
- networked control systems
- power allocation
- packet dropout
- almost sure stability
- transmission energy constraint