3.22-Gb/s WDM Visible Light Communication of a Single RGB LED Employing Carrier-Less Amplitude and Phase Modulation

Wu, Fang–Jing; Lin, Chun-Ting; Wei, Chia-Chien; Chen, Cheng-Wei; Chen, Zhenyu; Huang, H. W.

doi:10.1364/ofc.2013.oth1g.4

Cited by 77 publications

(31 citation statements)

References 4 publications

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“…04, 2017; accepted Jul. 25,2017light LEDs [4,5] . An LED can be used for both illumination and data transmission simultaneously [6] , and the standards on these topics have been proposed in IEEE 802.15.7 [7] .…”

Section: Introductionmentioning

confidence: 99%

Power optimization under brightness and communication requirements for visible light communication based on MacAdam ellipse

Lou

Gong

et al. 2017

J. Commun. Inf. Netw.

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Data transmission with RGB LEDs is attracting significant research interest in VLC (Visible Light Communication). We consider the power optimization under brightness and communication requirements for RGB LEDs, and model the color constraint using the MacAdam ellipse instead of a fixed point in the chromaticity diagram. Then an optimization problem is formulated to determine the transmission power consumption and the corresponding coordinates in the chromaticity diagram. We propose a novel two-step algorithm to solve the optimization problem with lower implementation complexity. Numerical results show that the proposed approach shows the same performance as the optimal solution using a brute-force method, and requires the lower power consumption using MacAdam ellipse instead of merely a fixed point in the chromaticity diagram.

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Section: Introductionmentioning

confidence: 99%

Power optimization under brightness and communication requirements for visible light communication based on MacAdam ellipse

Lou

Gong

et al. 2017

J. Commun. Inf. Netw.

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“…Recently a 5.6-Gb/s VLC transmission has been firstly demonstrated with bit and power loading based discrete multi-tone (DMT) modulation [2]. Moreover, to eliminate the inter-symbol interference (ISI) in high speed VLC systems and further improve the system performance, series of linear equalization schemes have been widely utilized, such as decision feedback equalization (DFE) [3], training symbol [4], decision-directed least mean square (DD-LMS) [5] and recursive least square (RLS) [6]. In our previous work, we proposed to use a blind post equalization scheme called modified cascaded multi-modulus algorithm (M-CMMA) for a carrierless amplitude and phase (CAP) modulation-based VLC system [7].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Performance of a High-Speed WDM CAP64 VLC System Employing Volterra Series-Based Nonlinear Equalizer

et al. 2015

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The light-emitting diode nonlinearity in visible light communication (VLC) systems is considered to be a major problem that deteriorates system performance. In this paper, we experimentally demonstrate a high-speed WDM CAP64 VLC system employing a Volterra series-based nonlinear equalizer to mitigate the nonlinear effect. A modified cascaded multimodulus algorithm (M-CMMA) is utilized to calculate the error function and update the weights of the nonlinear equalizer without using training symbols. An aggregate data rate of 4.5 Gb/s is successfully achieved over 2-m indoor freespace transmission with a bit error rate (BER) below the 7% forward error correction limit of 3:8 Â 10 À3 . With the Volterra nonlinear equalizer, the Q factor of the VLC system is 1. 6 dB better than that without using the nonlinear equalizer, and the transmission distance is also increased by about 110 cm at the BER of 3:8 Â 10 À3 . To the best of our knowledge, this is the first time that the Volterra nonlinear equalizer is utilized for highspeed carrierless amplitude and phase (CAP) modulation-based VLC systems.

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“…Employing RGB-LED and spectrally efficient modulations, some outstanding achievements on high speed VLC transmission have been reported. In [4], Wu et al have presented a 3.22-Gb/s RGB-LED based VLC system utilizing carrier-less amplitude and phase (CAP) modulation. A 3.4-Gb/s WDM VLC system based on discrete multi-tone (DMT) has been experimentally demonstrated in [5].…”

Section: Introductionmentioning

confidence: 99%

45-Gb/s RGB-LED based WDM visible light communication system employing CAP modulation and RLS based adaptive equalization

Wang¹,

Huang²,

Tao³

et al. 2015

Opt. Express

138

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Inter-symbol interference (ISI) is one of the key problems that seriously limit transmission data rate in high-speed VLC systems. To eliminate ISI and further improve the system performance, series of equalization schemes have been widely investigated. As an adaptive algorithm commonly used in wireless communication, RLS is also suitable for visible light communication due to its quick convergence and better performance. In this paper, for the first time we experimentally demonstrate a high-speed RGB-LED based WDM VLC system employing carrier-less amplitude and phase (CAP) modulation and recursive least square (RLS) based adaptive equalization. An aggregate data rate of 4.5Gb/s is successfully achieved over 1.5-m indoor free space transmission with the bit error rate (BER) below the 7% forward error correction (FEC) limit of 3.8x10(-3). To the best of our knowledge, this is the highest data rate ever achieved in RGB-LED based VLC systems.

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3.22-Gb/s WDM Visible Light Communication of a Single RGB LED Employing Carrier-Less Amplitude and Phase Modulation

Cited by 77 publications

References 4 publications

Power optimization under brightness and communication requirements for visible light communication based on MacAdam ellipse

Power optimization under brightness and communication requirements for visible light communication based on MacAdam ellipse

Enhanced Performance of a High-Speed WDM CAP64 VLC System Employing Volterra Series-Based Nonlinear Equalizer

45-Gb/s RGB-LED based WDM visible light communication system employing CAP modulation and RLS based adaptive equalization

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