Authors: Li, XJ; Min, CY; Gao, SS; Sun, GL; Chen, XB; Chen, HD

OPTICS COMMUNICATIONS

Volume: 451 Pages: 147-152 Published: NOV 15 2019 Language: English Document type: Article

DOI: 10.1016/j.optcom.2019.06.052

Abstract:

An overall bit rate of 625 Mb/s real-time mull-access VLC system is presented in this paper. In order to decrease the effect of ambient light and deal with the non-linearity of LED, we propose a new algorithm to get orthogonal codes which is suitable for OOK modulation. By employing a single white LED and three photo diodes, three users are provided access to the VLC system individually at the same time. A data frame and CRC32 are adopted to realize a reliable and continuous data interaction between Ethernet and VLC system. All the numerical calculations are implemented by FPGAs so as to provide a practical high-speed transmission.

Full Text: https://www.sciencedirect.com/science/article/pii/S0030401819305619