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   Articles with "vlc systems" as a keyword



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Simplified and accelerated PPM receivers for VLC systems

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recommendations! Published in 2018 at "Iet Optoelectronics"

DOI: 10.1049/iet-opt.2017.0052

Abstract: This study presents two receivers for visible light communication (VLC) systems. First, modified pulse position modulation (PPM) (MPPMD) and variable pulse position modulation (VPPM) (MVPPMD) demodulators are considered for MPPM and traditional VPPM schemes. The… read more here.

Keywords: vlc systems; ppm receivers; simplified accelerated; vppm ... See more keywords
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An inter-lighting interference cancellation scheme for MISO-VLC systems

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recommendations! Published in 2017 at "International Journal of Electronics"

DOI: 10.1080/00207217.2017.1296594

Abstract: ABSTRACT In this paper, we propose an inter-lighting interference cancellation (ILIC) scheme to reduce the interference between adjacent light-emitting diodes (LEDs) and enhance the transmission capacity of multiple-input–single-output (MISO)-visible light communication (VLC) systems. In indoor… read more here.

Keywords: vlc systems; interference; vlc; scheme ... See more keywords
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Multi-user High Data Rate Indoor VLC Systems

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recommendations! Published in 2020 at "Iete Journal of Research"

DOI: 10.1080/03772063.2020.1847703

Abstract: In this paper, we propose, design and evaluate the performance of an angle diversity transmitter (ADT) to achieve high data rate multi-user indoor visible light communication (VLC) systems. Our pro... read more here.

Keywords: vlc systems; multi user; data rate; high data ... See more keywords
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Hybrid RF/VLC Systems: A Comprehensive Survey on Network Topologies, Performance Analyses, Applications, and Future Directions

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recommendations! Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3129154

Abstract: Wireless communications refer to data transmissions in unguided propagation media through the use of wireless carriers such as radio frequency (RF) and visible light (VL) waves. The rising demand for high data rates, especially, in… read more here.

Keywords: hybrid vlc; systems comprehensive; vlc systems; comprehensive survey ... See more keywords
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Time-Delay Twin Support Vector Regression- Based Adaptive Predistorter for LED Nonlinearity in Visible Light Communications

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recommendations! Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2023.3253900

Abstract: In visible light communication (VLC) systems based on light emitting diodes (LEDs), the nonlinearity of LEDs often leads to a high bit error rate (BER), which limits the system’s performance. While artificial neural networks (ANNs)… read more here.

Keywords: time; led nonlinearity; predistorter; nonlinearity ... See more keywords
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Flexible Quadrature Spatial Pulse Amplitude Modulation for VLC Systems

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recommendations! Published in 2022 at "IEEE Systems Journal"

DOI: 10.1109/jsyst.2021.3125370

Abstract: Quadrature-spatial modulation (QSM) offers high spectral efficiency (SE) without interchannel interference for both radio frequency and visible light communication (VLC) systems. In this article, a new QSM scheme called flexible quadrature spatial pulse amplitude modulation… read more here.

Keywords: modulation; amplitude modulation; quadrature spatial; spatial pulse ... See more keywords
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On Secure VLC Systems With Spatially Random Terminals

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recommendations! Published in 2017 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2016.2643632

Abstract: This letter investigates the secrecy performance of a visible light communication (VLC) system with a legitimate receiver and a group of eavesdroppers. Considering the randomness of the locations of the legitimate receiver and the eavesdroppers,… read more here.

Keywords: vlc systems; systems spatially; spatially random; secure vlc ... See more keywords
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A New Transceiver Design for Protograph LDPC-Coded LACO-OFDM VLC Systems With Deep Learning

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recommendations! Published in 2023 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2022.3233628

Abstract: As a spectral-efficient and transmission-reliable technique, channel coded layered asymmetrically clipped optical orthogonal frequency-division multiplexing (LACO-OFDM) has attracted considerable interest in visible light communications. In this letter, we investigate the protograph low-density parity-check (LDPC)-coded LACO-OFDM… read more here.

Keywords: coded laco; laco ofdm; protograph; ofdm vlc ... See more keywords
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Joint Probabilistic Shaping and Beamforming Scheme for MISO VLC Systems

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recommendations! Published in 2022 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2021.3134268

Abstract: We propose a joint probabilistic shaping and beamforming scheme to approach the channel capacity of multiple-input single-output (MISO) visible light communication (VLC) systems subject to both peak and average power constraints. In this scheme, unipolar… read more here.

Keywords: probabilistic shaping; joint probabilistic; beamforming scheme; shaping beamforming ... See more keywords
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PAPR reduction by combining clipping and piecewise linear companding for OFDM-based VLC systems

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recommendations! Published in 2021 at "Optical Engineering"

DOI: 10.1117/1.oe.60.6.066105

Abstract: Abstract. A scheme called clipping-piecewise linear companding (C-PLC) was proposed in this paper to address the problem of high clipping noise and peak-to-average power ratio (PAPR) in optical orthogonal frequency division multiplexing (O-OFDM) signal for… read more here.

Keywords: vlc systems; ofdm; piecewise linear; clipping piecewise ... See more keywords
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Channel and Bit Adaptive Power Control Strategy for Uplink NOMA VLC Systems

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recommendations! Published in 2019 at "Applied Sciences"

DOI: 10.3390/app9020220

Abstract: Non-orthogonal multiple access (NOMA) can be an effective solution to the limited bandwidth of light emitting diodes for visible light communication (VLC) systems to support multiuser communication. The current available works for NOMA VLC systems… read more here.

Keywords: vlc systems; power control; power; adaptive power ... See more keywords