1-Gb/s Transmission Over a Phosphorescent White LED by Using Rate-Adaptive Discrete Multitone Modulation
TLDR
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.Abstract:
Light-emitting diodes (LEDs), which will be increasingly used in lighting technology, will also allow for distribution of broadband optical wireless signals. Visible-light communication (VLC) using white LEDs offers several advantages over the RF-based wireless systems, i.e., license-free spectrum, low power consumption, and higher privacy. Mostly, optical wireless can provide much higher data rates. In this paper, we demonstrate a VLC system based on a white LED for indoor broadband wireless access. After investigating the nonlinear effects of the LED and the power amplifier, a data rate of 1 Gb/s has been achieved at the standard illuminance level, by using an optimized discrete multitone modulation technique and adaptive bit- and power-loading algorithms. The bit-error ratio of the received data was $1.5\cdot 10^{-3}$ , which is within the limit of common forward error correction (FEC) coding. These results twice the highest capacity that had been previously obtained.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
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.
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
TL;DR: 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.
Journal ArticleDOI
3.4 Gbit/s visible optical wireless transmission based on RGB LED
TL;DR: A gigabit-class indoor visible light communication system using commercially available RGB White LED and exploiting an optimized DMT modulation is experimentally realized and the resulting bit error ratios are the highest ever achieved in VLC systems.
Journal ArticleDOI
High-speed visible light communication systems
Liane Grobe,Anagnostis Paraskevopoulos,Jonas Hilt,Dominic Schulz,Friedrich Lassak,Florian Hartlieb,Christoph Kottke,Volker Jungnickel,Klaus-Dieter Langer +8 more
TL;DR: Current achievements and trends in high-speed indoor visible light communication (VLC) research are presented and for the first time, a bidirectional real-time VLC prototype achieving data rates of up to 500 Mb/s is presented.
References
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Journal ArticleDOI
Fundamental analysis for visible-light communication system using LED lights
T. Komine,Masao Nakagawa +1 more
TL;DR: Based on numerical analyses, it is shown that the proposed indoor visible-light communication system utilizing white LED lights is expected to be the indoor communication of the next generation.
Journal ArticleDOI
OFDM for Optical Communications
TL;DR: In this paper, the authors give a tutorial overview of OFDM and highlight the aspects that are likely to be important in optical applications, and discuss the constraints imposed by single mode optical fiber, multimode optical fiber and optical wireless.
Patent
Ensemble modem structure for imperfect transmission media
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Proceedings ArticleDOI
On the Extended Relationships Among EVM, BER and SNR as Performance Metrics
TL;DR: The error vector magnitude (EVM) bit error rate (BER) and signal to noise ratio (SNR) and the fact that with such relationship it would be possible to predict or in cases substitute EVM in places of BER or even SNR is presented.