Event-Based Sensor Transmission Strategy for Wireless Networked Control Systems Over Time-Varying Channels
研究了无线网络化控制系统中,在通信速率约束下最小化线性二次高斯成本的最优事件触发传感器传输策略,推导了成本收敛的充要条件并提出了搜索算法。
This article is concerned with the optimal event-based sensor transmission strategy for wireless networked control systems (WNCSs), which aims to minimize the linear quadratic Gaussian (LQG) cost under the communication rate constraints. A sufficient and necessary condition for the convergence of LQG cost is derived. Then, under this condition, the optimal event-based transmission strategy (OETS) is obtained by proposing a search algorithm. Compared with the existing works, the real-time state information of the channel is not required. Finally, the validity of the results is illustrated through a numerical example.