Light-fidelity based biosignal transmission

Abstract The flickering of the light in the light emitting diode at a very high frequency is not perceived by the human eye. The phenomenon can be exploited for wirelessly transmitting data. In this regard, light-fidelity (Li-Fi) based wireless transmission has been proposed. The Li-Fi-based systems can transmit data at a rate of, as high as, 500 Mbits/s. Though it has shown a great potential in transmitting data packets in communication systems, it has not been explored to a great extent for transmitting biomedical signals in hospital environments. The Li-Fi-based wireless communication systems can offer several advantages over the conventional radio frequency (RF) wave-based communication systems. In this chapter, we discuss details about the Li-Fi-based communication systems over the RF-based communication systems with regards to human health. Further, we discuss the designing aspects of a simple Li-Fi-based electrocardiogram signal transmitter.