Underwater optical wireless communication (UOWC) technologies are essential for the growth of future underwater communication applications. As the demand for capacity increases, UOWC is considered an emerging alternative technology in the underwater communication area. However, maintaining a controlled line-of-sight link between transmitter and receiver is a significant challenge because the alignment angle required for trajectory tracking control is not directly measured and has to be estimated. In this talk, I will present our recent works on estimating the alignment angle between autonomous underwater vehicles. Specifically, I will discuss a novel estimation-based trajectory control algorithm for a light-emitting-diode (LED)-based optical communication model. Then, I will discuss localization and tracking control of a mobile target ship with an autonomous underwater vehicle (AUV) in the underwater environment. The framework uses a hybrid acoustic-optical underwater communication to drive the AUV to the maximum achievable data rate angle. The acoustic link is used for the non-line-of-sight localization, and the optical link is for the line-of-sight transmission. I will conclude the talk by providing a perspective on the potential impact of designing networked control systems for exploring deep-ocean and monitoring underwater engineering applications.
Dr. Ibrahima N'Doye is a Research Scientist with the Electrical Engineering Department at King Abdullah University of Science and Technology (KAUST). He jointly received his Ph.D. degree in Automatic Control from the Research Center of Automatic Control, University of Lorraine (CRAN-CNRS), France, and his Ph.D. degree in Control Systems and Industrial Informatics from the University Hassan II Ain Chock, Morocco, in 2011. He was a Postdoctoral Researcher with the Faculty of Science, University of Luxembourg, Luxembourg, and the King Abdullah University of Science and Technology. His main research interests include estimation, control theory, and networked control systems. He is a recipient of the IEEE Senior Member grade in 2020. He is currently serving as an Associate Editor for the Proceedings of The Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering (JSCE), Co-organizer of the open track invited session of the 2023 IFAC World Congress, and Chairman of the sessions “Observers for nonlinear systems” and “Sensor fusion” of the 2023 American Control Conference.