Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 35, Issue 20, Pages 4358-4365Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2017.2694486
Keywords
Integrated VLC; multiple input multiple output; visible light communications; VLC demonstrator
Funding
- U.K. Engineering and Physical Sciences Research Council [EP/K00042X/1]
- EPSRC [EP/K00042X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K00042X/1] Funding Source: researchfish
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In this paper, we report the performance of an imaging multiple-input multiple-output (MIMO) visible light communication (VLC) system. The VLC transmitter consists of a two-dimensional (2-D), individually addressable Gallium Nitride micro light-emitting diode (mu LED) array. The receiver uses a 2-D avalanche photodiode array fabricated using complementary metal oxide semiconductor (CMOS). Using integrated CMOS-based LED drivers, a data rate greater than 1 Gb/s was obtained at a link distance of 1 m with the system field of view of 3.45 degrees using four channels. At a reduced link distance of 0.5 m, a data rate of 7.48 Gb/s was obtained using a nine channel MIMO system. This demonstrates the feasibility of compact MIMO systems that offer substantial data rates.
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