Visible Light Communication the next Future Generation System

Optical Communication represents a leap in the field of communication compared to radio frequency (RF), which suffers the interference and low response time due to crowded bandwidth. Visible light communication (VLC) is preferred in optical communication, because it operates within the spectrum of visible light, which is healthy, harmless, and has a huge bandwidth. This paper presents a review for the great development in semiconductors field, especially light emitting diode (LED) and the Laser diode (LD), which is in illumination, and furthermore was exploited at the same time for the purpose of communications. the methods of optical signal modulation and comparing these methods were also reviewed based on their characteristics. The research paper also focused on the development of FBMC (filter bank multicarrier) technology and its use in the VLC system. VLC is the candidate for the next generation of communication, where it is developed to operate Indoors and outdoors.