Experimental Demonstration of 50-Mb/s Visible Light Communications Using 4 x 4 MIMO

Burton, Andrew, Le Minh, Hoa, Ghassemlooy, Zabih, Bentley, Edward and Botella, Carmen (2014) Experimental Demonstration of 50-Mb/s Visible Light Communications Using 4 x 4 MIMO. IEEE Photonics Technology Letters, 26 (9). pp. 945-948. ISSN 1041-1135

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Abstract

This letter reports the experimental demonstration of an indoor visible light nonimaging multiple-input multiple-output system with an aggregate error free bit rate of 50 Mb/s over a distance of 2 m. The system uses four independent white LED transmitters, each transmitting 12.5 Mb/s of data in the ON-OFF keying nonreturn zero format, and four independent nonimaging optical receivers. The performance of four detection methods ranging from the basic channel inversion to the more advanced space time techniques is compared experimentally. The results gathered demonstrate that the simplest technique is capable of the same bit error rate as the most complex scheme. The system also provides full illumination with a mean level of 350 Lux satisfying the ISO lighting standards for home and office environments.

Item Type:	Article
Uncontrolled Keywords:	MIMO, MMSE, V-BLAST, VLC, ZF, nonimaging, pseudoinverse
Subjects:	H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	24 Apr 2014 11:37
Last Modified:	12 Oct 2019 19:20
URI:	http://nrl.northumbria.ac.uk/id/eprint/16115

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