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

Andrew Burton, Hoa Le Minh, Zabih Ghassemlooy, Edward Bentley, Carmen Botella

Research output: Contribution to journalArticlepeer-review

142 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)945-948
JournalIEEE Photonics Technology Letters
Issue number9
Early online date11 Mar 2014
Publication statusPublished - 1 May 2014


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