In November 2003, Visible Light Communications Consotium (VLCC) was established in Japan, and in 2007, two standards were proposed, including the standard for Visible Light Communication System and the standard for Visible Light Identification System.At the same time, the European Union launched its OME Gigabit Access (OMEGA) project, which aims to expand wireless networks in the form of visible light communications.In 2009, Minh et al. 3 carried out high-speed VLC experiments, tested the blue component of LED, and proved that the on-off keying could achieve a data rate of 100 Mivs by using a simple first-order analog equalizer, laying a foundation for high-speed VLC.And then, in 2010,Reference 35] Combining traditional VLC with OrthogonalFrequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO) technologies,The total transmission rate of 2220 Mbit's is achieved, which proves that VLC can also be combined with other communication technologies to improve the transmission rate of the system.In 2010, Vucic used positive if overcome the relatively low modulation index and other technical obstacles, then the theory of the extension!The technology of the cold division of the material, electrical and electronic industry has developed the previous standard with the FWIEEE ", namely EEE802.15.7.

From 2013 to 2014, Zhng and Tsonev respectively applied the novel ILED to the VLC system for experiments in literature and literature [39], and the system rate reached 5 RSCGoi respectively, which laid a solid foundation for the future practical observation of high-density visible light system. In 2014,Cossu et al. used RGB LED, wavelength division multiplexing and discrete multi-tone system to achieve a data rate of 5.6 Gbits within a range greater than 1.5m in the paper (401), and created the fastest VLC at that time, which was recorded in 2015 by Wang;The VLC communication experiment in S50M is carried out outdoors, and the speed of 1.8GHitst is achieved, which provides technical support for outdoor visible light communication.

Although the research on VLC in China started late, some remarkable achievements have been made in recent years. In 2013, the University of Information Engineering undertook the first visible light "863" project in China, and in 2015, the real-time access rate increased to 50Gbis. Professor Chi Nan of Fudan University has also made great progress in the field of VLC.Since Japanese researchers proposed visible light communication in 20,000, after more than ten years of development, its transmission speed has been getting higher and breakthroughs have been made. In 2011, it was rated as one of the world's top 50 Comings by Time Magazine. 14 Compared with Wi-Fi, Bluetooth, ZigBee and millimeter wave short-range wireless communication technologies,It has the advantages of rich spectrum, high transmission rate, no electromagnetic radiation, high security, high density and cost.These advantages make VLC have a wide application prospect.As long as the use of LED lighting occasions, may become its potential application scenarios.