Lights and shadows: A comprehensive survey on cooperative and precoding schemes to overcome LOS blockage and interference in indoor VLC

MM Céspedes, BG Guzmán, VPG Jiménez - Sensors, 2021 - mdpi.com
Visible light communications (VLC) have received significant attention as a way of moving
part of the saturated indoor wireless traffic to the wide and unregulated visible optical …

An efficient PCCM masking scheme for PAPR reduction and encryption in OFDM-VLC system

JPP Jemimah, S Miruna Joe Amali - Telecommunication Systems, 2024 - Springer
Wide usage of Orthogonal frequency division multiplexing (OFDM) in visible light
communication (VLC) systems aids in sharing immense multimedia files. But, an increase in …

Reducing traffic congestion in makkah during Hajj through the use of AI technology

F Gazzawe, M Albahar - Heliyon, 2024 - cell.com
This research addresses the pervasive issue of traffic congestion during the Hajj, where
approximately 250,000 vehicles substantially exacerbate travel times and road accidents …

Increasing the reach of visible light communication links through constant-envelope OFDM signals

H Camporez, W Costa, M Pontes, M Segatto… - Optics …, 2023 - Elsevier
The transmission of constant-envelope orthogonal frequency division multiplexing (CE-
OFDM) signals, based on electrical phase modulation, was shown to improve the tolerance …

Design and Performance Evaluation of a Relay-Assisted Hybrid LoRa/Optical Wireless Communication System for IoUT

J Bolboli, M Salman, RP Naik… - IEEE Open Journal of …, 2024 - ieeexplore.ieee.org
Long-range wide-area network (LoRaWAN) offers reliable connectivity for terrestrial
applications, but its use in underwater wireless communication faces challenges, particularly …

A Manchester-OOK visible light communication system for patient monitoring in intensive care units

KM Van Der Zwaag, MP Marinho, WDS Costa… - IEEE …, 2021 - ieeexplore.ieee.org
Visible Light Communication (VLC) is an interesting solution in Intensive Care (IC) medical
environments to, among others, prevent the spread of emerging diseases. This work …

Experimental evaluation of pulse sha** based 5G multicarrier modulation formats in visible light communication systems

FT Monteiro, WS Costa, JLC Neves, DMI Silva… - Optics …, 2020 - Elsevier
A performance comparison between the pulse sha** based multicarrier modulation
formats, candidates for the fifth generation (5G) of wireless networks, applied to visible light …

Direct equalization with convolutional neural networks in OFDM based VLC systems

WS Costa, JLA Samatelo, HRO Rocha… - 2019 IEEE Latin …, 2019 - ieeexplore.ieee.org
Fast fading communication channels are difficult to be estimated with conventional methods
like least square (LS) or minimum mean square error (MMSE). Hence, the purpose of this …

Increasing the power and spectral efficiencies of an OFDM-based VLC system through multi-objective optimization

W Costa, H Camporez, M Pontes, M Segatto, H Rocha… - JOSA A, 2023 - opg.optica.org
The nonlinearity induced by light-emitting diodes in visible light communication (VLC)
systems presents a challenge to the parametrization of orthogonal frequency division …

CNN direct equalization in OFDM-VLC systems: evaluations in a numerical model based on experimental characterizations

WS Costa, JLA Samatelo, HRO Rocha… - Photonic Network …, 2023 - Springer
An investigation on the orthogonal frequency division multiplexing (OFDM) equalization
using deep learning architectures for a multipath single-input single-output visible light …