A multigigabit per second integrated multiple-input multiple-output VLC demonstrator

Rajbhandari, Sujan and Jalajakumari, Aravind V.N. and Chun, Hyunchae and Faulkner, Grahame and Cameron, Katherine and Henderson, Robert and Tsonev, Dobroslav and Haas, Harald and Xie, Enyuan and McKendry, Jonathan J. D. and Herrnsdorf, Johannes and Ferreira, Ricardo and Gu, Erdan and Dawson, Martin D. and O'Brien, Dominic (2017) A multigigabit per second integrated multiple-input multiple-output VLC demonstrator. Journal of Lightwave Technology, 35 (20). ISSN 0733-8724 (https://doi.org/10.1109/JLT.2017.2694486)

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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, individually addressable Gallium Nitride micro light emitting diode (µLED) array. The receiver uses a two-dimensional avalanche photodiode (APD) array fabricated using complementary metal oxide semiconductor (CMOS). Using integrated CMOS-based LED drivers, a data rate greater than 1 Gbps was obtained at a link distance of 1 m with the system field of view (FOV) of 3.45 degree using four channels. At a reduced link distance of 0.5 m, a data rate of 7.48 Gbps was obtained using a nine channel MIMO system. This demonstrates the feasibility of compact MIMO systems which offer substantial data rates.


Rajbhandari, Sujan ORCID logoORCID: https://orcid.org/0000-0001-8742-118X, Jalajakumari, Aravind V.N., Chun, Hyunchae, Faulkner, Grahame, Cameron, Katherine, Henderson, Robert, Tsonev, Dobroslav, Haas, Harald, Xie, Enyuan ORCID logoORCID: https://orcid.org/0000-0001-7776-8091, McKendry, Jonathan J. D. ORCID logoORCID: https://orcid.org/0000-0002-6379-3955, Herrnsdorf, Johannes ORCID logoORCID: https://orcid.org/0000-0002-3856-5782, Ferreira, Ricardo ORCID logoORCID: https://orcid.org/0000-0003-1731-1588, Gu, Erdan ORCID logoORCID: https://orcid.org/0000-0002-7607-9902, Dawson, Martin D. ORCID logoORCID: https://orcid.org/0000-0002-6639-2989 and O'Brien, Dominic;