Journal ArticleDOI
Demonstration of High-Speed 2 × 2 Non-Imaging MIMO Nyquist Single Carrier Visible Light Communication With Frequency Domain Equalization
Yuanquan Wang,Nan Chi +1 more
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TLDR
In this article, a high-speed 2 × 2 non-imaging MIMO Nyquist single carrier visible light communication system is presented, where two commercially available blue light emitting diodes with 3 −dB electrical bandwidth of 10 −MHz and two avalanche photo diode with 100 −MHz are used as transmitters and receivers, respectively.Abstract:
We experimentally demonstrate a high-speed 2 × 2 non-imaging multiple-input multiple-output nyquist single carrier visible light communication system. Two commercially available blue light emitting diodes with 3 dB electrical bandwidth of 10 MHz and two avalanche photo diodes with 3 dB electrical bandwidth of 100 MHz are used as transmitters and receivers, respectively. A frequency domain equalization method based on two pairs of time-multiplexed training symbols is proposed, which allows de-multiplexing and post-equalization simultaneously processing in one step. Frequency domain averaging and time-domain averaging are also implemented and analyzed in this paper. In this demonstration, the overall data rate is 500 Mb/s. The measured bit error rates for two receivers are both below the 7% pre-forward-error-correction threshold of $ \hbox{3.8} \times 10^{-3}$ after 40 cm free-air transmission.read more
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Journal ArticleDOI
Visible Light Communication: Concepts, Applications and Challenges
Luiz Eduardo Mendes Matheus,Alex Borges Vieira,Luiz F. M. Vieira,Marcos A. M. Vieira,Omprakash Gnawali +4 more
TL;DR: A comprehensive state-of-the-art survey of VLC technology, from its physical aspects and communication architecture to its main applications and research challenges, and presents the main research platforms available today.
Journal ArticleDOI
A review of gallium nitride LEDs for multi-gigabit-per-second visible light data communications
Sujan Rajbhandari,Sujan Rajbhandari,Jonathan J. D. McKendry,Johannes Herrnsdorf,Hyunchae Chun,Grahame Faulkner,Harald Haas,Ian Watson,Dominic O'Brien,Martin D. Dawson +9 more
TL;DR: The state-of-the-art technology enabling bandwidth of GaN LEDs in the range of >400 MHz is explored and advances in key technologies, including advanced modulation, equalisation, and multiplexing that have enabled free-space VLC data rates beyond 10 Gb/s are outlined.
Journal ArticleDOI
Channel modeling for visible light communications-a survey
TL;DR: This survey paper addresses various issues on the fundamental characteristic features of VLC systems, the impact of indoor environments on system performance, and the analysis and discussions of five different types of typical VLC channel models and other related parameters in V LC channel models.
Journal ArticleDOI
Performance Analysis of Indoor Diffuse VLC MIMO Channels Using Angular Diversity Detectors
TL;DR: The results show that exploiting specular and diffuse reflections provide significant improvements in link performance and a novel approach called adaptive spatial modulation is proposed to cope with rank deficient channels.
Journal ArticleDOI
On the coverage of multiple-input multiple-output visible light communications [Invited]
Chen Chen,Wen-De Zhong,Dehao Wu +2 more
TL;DR: A comprehensive investigation of both the illumination and communication coverages of an indoor MIMO-VLC system based on NHS-OFDM is presented and the analytical bit error rate expression of the system is derived.
References
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Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
TL;DR: This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions and discusses similarities and differences of SC and OFDM systems and coexistence possibilities, and presents examples of SC-FDE performance capabilities.
Journal ArticleDOI
High data rate multiple input multiple output (MIMO) optical wireless communications using white led lighting
Lubin Zeng,Dominic O'Brien,Hoa Minh,Grahame Faulkner,Kyung-Woo Lee,Daekwang Jung,Yun-Je Oh,Eun Tae Won +7 more
TL;DR: In this paper, a non-imaging optical MIMO system does not perform properly at all receiver positions due to symmetry, but an imaging based system can operate under all foreseeable circumstances, and simulations show such systems can operate at several hundred Mbit/s, and up to G Bit/s in many circumstances.
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
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
Demonstration of 575-Mb/s downlink and 225-Mb/s uplink bi-directional SCM-WDM visible light communication using RGB LED and phosphor-based LED
TL;DR: This work proposes and experimentally demonstrate a novel full-duplex bi-directional subcarrier multiplexing (SCM)-wavelength division multiplexed (WDM) visible light communication (VLC) system based on commercially available red-green-blue (RGB) light emitting diode (LED) and phosphor-based LED (P-LED) with 575-Mb/s upstream transmission.
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