Journal ArticleDOI
A 3-Gb/s Single-LED OFDM-Based Wireless VLC Link Using a Gallium Nitride $\mu{\rm LED}$
Dobroslav Tsonev,Hyunchae Chun,Sujan Rajbhandari,Jonathan J. D. McKendry,Stefan Videv,Erdan Gu,Mohsin Haji,Scott Watson,Anthony Kelly,Grahame Faulkner,Martin D. Dawson,Harald Haas,Dominic O'Brien +12 more
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TLDR
In this article, the authors presented a visible light communication (VLC) system based on a single 50-μm gallium nitride light emitting diode (LED) with a 3-dB modulation bandwidth of at least 60 MHz.Abstract:
This letter presents a visible light communication (VLC) system based on a single 50- μm gallium nitride light emitting diode (LED). A device of this size exhibits a 3-dB modulation bandwidth of at least 60 MHz - significantly higher than commercially available white lighting LEDs. Orthogonal frequency division multiplexing is employed as a modulation scheme. This enables the limited modulation bandwidth of the device to be fully used. Pre- and postequalization techniques, as well as adaptive data loading, are successfully applied to achieve a demonstration of wireless communication at speeds exceeding 3 Gb/s. To date, this is the fastest wireless VLC system using a single LED.read more
Citations
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Journal ArticleDOI
Visible Light Communication, Networking, and Sensing: A Survey, Potential and Challenges
TL;DR: This survey provides a technology overview and review of existing literature of visible light communication and sensing and outlines important challenges that need to be addressed in order to design high-speed mobile networks using visible light Communication-VLC.
Journal ArticleDOI
What is LiFi
TL;DR: This paper will show how LiFi takes VLC further by using light emitting diodes (LEDs) to realise fully networked wireless systems to illustrate that LiFi attocells are not a theoretical concept any more, but at the point of real-world deployment.
Journal ArticleDOI
LED Based Indoor Visible Light Communications: State of the Art
TL;DR: This paper provides a comprehensive survey on VLC with an emphasis on challenges faced in indoor applications over the period 1979-2014.
Proceedings ArticleDOI
What is LiFi
Harald Haas,Cheng Chen +1 more
TL;DR: Light-Fidelity takes visible light communication (VLC) further by using light emitting diodes (LEDs) to realise fully networked wireless systems for the Internet-of-Things (IoT), 5G and beyond.
Journal ArticleDOI
A Comparative Survey of Optical Wireless Technologies: Architectures and Applications
TL;DR: In this article, the authors provide a technology overview and a review on optical wireless technologies, such as visible light communication, light fidelity, optical camera communication, free space optical communication, and light detection and ranging.
References
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Journal ArticleDOI
1-Gb/s Transmission Over a Phosphorescent White LED by Using Rate-Adaptive Discrete Multitone Modulation
TL;DR: A VLC system based on a white LED for indoor broadband wireless access has been demonstrated, with twice the highest capacity that had been previously obtained by using an optimized discrete multitone modulation technique and adaptive bit- and power-loading algorithms.
Journal ArticleDOI
A Gigabit/s Indoor Wireless Transmission Using MIMO-OFDM Visible-Light Communications
TL;DR: An experimental demonstration of indoor wireless visible-light communication transmission at 1 Gb/s is reported, using a four-channel multiple-input multiple-output link that uses white LED sources.
Journal ArticleDOI
Visible-Light Communications Using a CMOS-Controlled Micro-Light- Emitting-Diode Array
Jonathan J. D. McKendry,David Massoubre,Shuailong Zhang,Bruce Rae,Richard P. Green,Erdan Gu,Robert Henderson,Anthony Kelly,Martin D. Dawson +8 more
TL;DR: In this paper, the authors reported the high-frequency modulation of individual pixels in 8 × 8 arrays of III-nitride-based micro-pixellated light-emitting diodes, where the pixels within the array range from 14 to 84 μ m in diameter.
Journal ArticleDOI
Information Rate of OFDM-Based Optical Wireless Communication Systems With Nonlinear Distortion
Svilen Dimitrov,Harald Haas +1 more
TL;DR: In this paper, a piecewise polynomial function is proposed as a generalized model for the nonlinear transfer characteristic of the transmitter for optical wireless communications (OWC), and the two general multicarrier modulation formats for OWC based on orthogonal frequency-division multiplexing (OFDM), direct-current-biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical ON-OFFDM (ACO-) are studied.
Journal ArticleDOI
High-Speed Visible Light Communications Using Individual Pixels in a Micro Light-Emitting Diode Array
Jonathan J. D. McKendry,Richard P. Green,Anthony Kelly,Zheng Gong,Benoit Guilhabert,David Massoubre,Erdan Gu,Martin D. Dawson +7 more
TL;DR: In this paper, the high-frequency modulation of individual pixels in III-nitride-based micro-pixel light-emitting diode arrays, where each array consists of 16 × 16 individually addressable 72-μm-diameter pixels, are reported.
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Fundamental analysis for visible-light communication system using LED lights
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