Integrated Sensing and Communication in the Visible Spectral Range: A Novel Closed Loop Controller

In the course of the ongoing process of defining the future communication standard of 6G, one of the main conceptions is that in future the tasks of communication and sensing will be performed in parallel, utilizing the same waveforms and the same hardware, thus forming a so-called Integrated Sensing and Communication (ISAC) system. In this work, we propose the concept of an ISAC system based solely on visible light that performs the task of sensing the rotational position of a cylinder mounted on a servomotor with an average absolute deviation of ~!1.2° and the task of forwarding the commands to reach a defined rotational position. The feasibility of the implemented ISAC system is verified by experimental results that demonstrate the applicability of such a visible light based ISAC systems in the era of $6\mathbf{G}$. Furthermore, we show a simple and effective method to compensate the impacts of additional ambient light on the operation performance.