LED beam steering for Li-Fi communications

Abstract

With the emergence of Light-Fidelity (Li-Fi) networks, it is essential to study the underlying challenges. Shadowing and low reflected energy that make the line-of-sight condition as a main requirement are the major obstacles in optical wireless communications. In this paper, we discuss the steps and procedure required for enabling a beam forming system for LED light. This can focus light on the desired direction improving throughput and overcome shadowing. A possible monolithic steering solution is introduced which can work despite incoherent light emanating from the LED. Electronic steering of the light beam will also have lighting applications.