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Visible Light Communications (VLC) is an innovative technology that uses the visible spectrum for high-speed data communications. In this paper the authors investigate the use of MIMO in the design of luminaires supporting VLC and, specifically, in enabling localization and high data rate services. Localization and transmission appear as two different problems in the communication system; however, the former is helpful to understand which is the diversity degree that the system can adopt, in order to achieve the required performance in terms of BER and data rate. Finally, they consider also how different users can access the Internet by means of a TDMA-like access scheme.
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