论文标题
标量系统线性二次控制的节能传输策略
Energy-efficient transmission policies for the linear quadratic control of scalar systems
论文作者
论文摘要
本文考虑了依靠有损无线反馈渠道的受控标量系统。与现有文献相反，重点不是系统控制器，而是在系统方面实现的无线传输电源控制器，以向控制器报告状态。对于必须考虑通信成本的无人机遥控器，这种问题可能是感兴趣的，\ emph {e.g。}。确定将动态系统成本和无线传输能量组合最小化的功率控制策略显示为非平凡的优化问题。事实证明，可以利用问题的递归结构来确定最佳功率控制策略。如数值性能分析中所示，在没有扰动的动态的情况下，最佳功率控制策略在于降低正确速度的发射功率。与传统政策（例如完整传输电力政策或开环政策）相比，这允许绩效增长。
This paper considers controlled scalar systems relying on a lossy wireless feedback channel. In contrast with the existing literature, the focus is not on the system controller but on the wireless transmit power controller that is implemented at the system side for reporting the state to the controller. Such a problem may be of interest, \emph{e.g.}, for the remote control of drones, where communication costs may have to be considered. Determining the power control policy that minimizes the combination of the dynamical system cost and the wireless transmission energy is shown to be a non-trivial optimization problem. It turns out that the recursive structure of the problem can be exploited to determine the optimal power control policy. As illustrated in the numerical performance analysis, in the scenario of a dynamics without perturbations, the optimal power control policy consists in decreasing the transmit power at the right pace. This allows a significant performance gain compared to conventional policies such as the full transmit power policy or the open-loop policy.
