PAPR reduction and non-linearity alleviation using hybrid of precoding and companding in a visible light communication (VLC) system
Sign Up to like & getrecommendations! Published in 2020 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-020-02426-1
Abstract: In this paper, a hybrid technique using a precoder and a µ law compander is proposed to alleviate light emitting diode (LED) nonlinearity as well as peak-to-average power ratio (PAPR) reduction in a VLC system.… read more here.
Keywords: vlc system; system; papr reduction; reduction non ... See more keywords
Adaptive learning architecture-based predistorter for nonlinear VLC system
Sign Up to like & getrecommendations! Published in 2019 at "Photonic Network Communications"
DOI: 10.1007/s11107-019-00848-w
Abstract: A light-emitting diode (LED) acts as a transmitter in a visible-light communication (VLC) system. However, the nonlinear characteristics of LED limit the performance of the VLC system by degrading the quality of a transmitted signal.… read more here.
Keywords: system; predistorter; performance; vlc system ... See more keywords
Image transmission in an OFDM VLC system using symbol scrambling and chaotic Walsh-Hadamard precoding
Sign Up to like & getrecommendations! Published in 2019 at "Optoelectronics Letters"
DOI: 10.1007/s11801-019-8165-7
Abstract: An image secure transmission scheme combining symbol scrambling and chaotic Wahsh-Hardmard precoding is proposed in orthogonal frequency division multiplexing (OFDM)-based visible light communication (VLC) system. In the proposed scheme, a two-dimensional (2D) logistic-sine-coupling map (LSCM)… read more here.
Keywords: walsh hadamard; scrambling chaotic; symbol scrambling; image ... See more keywords
BER analysis of dynamic FOV based MIMO-NOMA-VLC system
Sign Up to like & getrecommendations! Published in 2021 at "AEU - International Journal of Electronics and Communications"
DOI: 10.1016/j.aeue.2021.153989
Abstract: Abstract Visible Light Communication (VLC) has evolved as a breakthrough technology for beyond 5G networks by providing a wide license-free spectrum. In this paper, we build a robust NOMA-VLC Network which exploits the MIMO technique.… read more here.
Keywords: system; mimo noma; noma vlc; vlc system ... See more keywords
Blind carrier phase estimation based on geometric projection for the multi-band VLC system
Sign Up to like & getrecommendations! Published in 2019 at "Optik"
DOI: 10.1016/j.ijleo.2019.02.075
Abstract: Abstract The carrier phase offset induced by the mismatch between the signal subcarrier frequency and arbitrary waveform generator (AWG) reference clock is a key problem for high-speed multi-band visible light communication (VLC) system. In this… read more here.
Keywords: multi band; system; vlc system; carrier phase ... See more keywords
A hybrid VLP and VLC system using m-CAP modulation and fingerprinting algorithm
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.125699
Abstract: Abstract A global positioning system (GPS) with high positioning accuracy (PA) is not feasible for challenging environments such as tunnels, underground, complex buildings, etc. For such environments, the alternative technology of visible light positioning (VLP)… read more here.
Keywords: system; step; fingerprinting algorithm; step size ... See more keywords
BER performance analysis of OFDM‐based integrated PLC and MIMO‐VLC system
Sign Up to like & getrecommendations! Published in 2020 at "Iet Optoelectronics"
DOI: 10.1049/iet-opt.2019.0132
Abstract: In the present paper, the bit error rate (BER) performance of hybrid power line communication (PLC) and multiple-input multiple-output (MIMO) visible light communication (VLC) system (HPMV) has been investigated using line-of-sight (LOS) and LOS plus… read more here.
Keywords: system; configuration; mimo vlc; vlc ... See more keywords
A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3206006
Abstract: In this paper, in order to improve the reliability of Multi-User Multiple-Input Multiple-Output Visible Light Communication (MU-MIMO-VLC) system, we propose a precoding scheme that based on Singular Value Decomposition (SVD) and Geometric Mean Decomposition (GMD)… read more here.
Keywords: scheme; decomposition; mimo vlc; vlc system ... See more keywords
AI-Driven Enhancements for Handover in Visible Light Communication Systems
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2024.3430188
Abstract: A modified genetic algorithm (MGA) optimization procedure, alongside time series machine learning (ML) classifiers, is proposed to minimize handovers in a digital twin-based visible light communication (VLC) system. Frequent handovers have a direct impact on… read more here.
Keywords: vlc system; visible light; driven enhancements; light communication ... See more keywords
The Spatial Dimming Scheme for the MU-MIMO-OFDM VLC System
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2018.2866706
Abstract: Multiuser visible light communication (MU-VLC) systems utilizing multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) are gaining increased attentions recently. Visible light communication (VLC) links are expected to work under different illumination conditions and, thus,… read more here.
Keywords: ofdm vlc; spatial dimming; dimming schemes; vlc ... See more keywords
Design and Implementation of Low-Complexity Pre-Equalizer for 1.5 GHz VLC System
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2024.3351192
Abstract: Visible light communications (VLC) has experienced rapid development in recent years as a strong competitor for next-generation wireless applications due to its wider bandwidth, higher security, and better electromagnetic immunity compared with conventional radio frequency… read more here.
Keywords: transmitter; vlc system; bandwidth; vlc ... See more keywords