A Review of Advanced Transceiver Technologies in Visible Light Communications

Visible Light Communication (VLC) is an emerging technology that utilizes light-emitting diodes (LEDs) for both indoor illumination and wireless communications. It has the potential to enhance the existing WiFi network and connect a large number of high-speed internet users in future smart home environments. Over the past two decades, VLC techniques have made significant strides, resulting in transmission data rates increasing from just a few Mbps to several tens of Gbps. These achievements can be attributed to the development of various transceiver technologies. At the transmitter, LEDs should provide high-quality light for illumination and support wide modulation bandwidths. Meanwhile, at the receiver, optics systems should have functions such as optical filtering, light concentration, and, ideally, a wide field of view (FOV). The photodetector must efficiently convert the optical signal into an electrical signal. Different VLC systems typically consider various transceiver designs. In this paper, we provide a survey of some important emerging technologies used to create advanced optical transceivers in VLC.

Automated summary

Visible Light Communication (VLC) is an emerging technology that utilizes LEDs for indoor illumination and wireless communications. It has the potential to enhance WiFi networks and connect high-speed internet users in smart home environments. VLC techniques have made significant strides over the past two decades, with data transmission rates increasing from Mbps to Gbps, thanks to the development of transceiver technologies.