Performance enhancement of MIMO based visible light communication

The camera based visible light communication (VLC) is the merger of VLC with vision technology in order to deploy VLC features in hand-held devices e.g., in Smartphone, employing light emitting diode (LED) transmitter to camera communication. However, the most advantageous features of VLC technology have not been achieved due to the low frame handling rate in camera module. In contrast, the spatially light source separation characteristic in camera module explores the scope to deploy multiple-input multiple-output (MIMO) concept for enhancing the overall system capacity and robust signal reception in camera based VLC system. In this paper, the performance of spatial multiplexing in MIMO based VLC system is evaluated.