Results 21 to 30 of about 5,269,364 (177)

Investigation and Implementation of Dicode Pulse Position Modulation Over Indoor Visible Light Communication System [PDF]

A visible light communication (VLC) system with green technology is available and enables users to use white LEDs for illumination as well as for high data rate transmission over wireless optical links.
Buhafa, Adel Mohamed
core   +3 more sources

A Block Bi-Diagonalization-Based Pre-Coding for Indoor Multiple-Input-Multiple-Output-Visible Light Communication System

Energies, 2020
Visible Light Communication (VLC) is a promising field in optical wireless communications, which uses the illumination infrastructure for data transmission.
Prabu Subramani, Ganesh Babu Rajendran, Jewel Sengupta, Rocío Pérez de Prado, Parameshachari Bidare Divakarachari   +4 more
doaj   +1 more source

Simultaneous transmission of audio and video signals using visible light communications [PDF]

, 2013
A visible light communication system for parallel transmission of high-quality audio and video signals using illumination white and red light-emitting diodes (LEDs) is presented in this paper. For video transmission, we adopts the pulse width modulation (
Son, Do, Cho, Eun Byeol, Son, Do Ky, Inkyu Moon, Cho, EunByeol, Chung Ghiu Lee, Ghassemlooy, Zabih, Kim, Soeun, Moon, Inkyu, Zabih Ghassemlooy, Lee, Chung Ghiu, Soeun Kim, Do Ky Son, EunByeol Cho   +13 more
core   +2 more sources

PWM-based PPM format for dimming control in visible light communication system [PDF]

, 2012
We report simulation results of pulse width modulation (PWM)-based pulse position modulation (PPM) signal format for visible light communication systems. For simultaneous operation of data transmission and dimming control, PPM data format is added to PWM
Jang, Hyung-Joon, Choi, Joon-Ho, Ghassemlooy, Zabih, Z. Ghassemlooy, Joon-Ho Choi, Hyung-Joon Jang, Lee, Chung Ghiu, Chung Ghiu Lee   +7 more
core   +1 more source

Micro-LED as a Promising Candidate for High-Speed Visible Light Communication

Applied Sciences, 2020
Visible Light Communication (VLC) technology is an emerging technology using visible light modulation that, in the modern world, will mainly facilitate high-speed internet connectivity.
Konthoujam James Singh, Yu-Ming Huang, Tanveer Ahmed, An-Chen Liu, Sung-Wen Huang Chen, Fang-Jyun Liou, Tingzhu Wu, Chien-Chung Lin, Chi-Wai Chow, Gong-Ru Lin, Hao-Chung Kuo   +10 more
doaj   +1 more source

Smart receiver for visible light communications: Design and Analysis [PDF]

, 2012
This paper presents the concept, design and analysis for a visible light communications receiver to guard against blocking and enhance mobility. Different geometrical shapes have been investigated, with two being chosen and analyzed in MATLAB for the ...
Haigh, P. A., P. A. Haigh, Z. Ghassemlooy, A. Burton, Ghassemlooy, Z., S. Rajbhandari, Burton, A., Le Minh, H., Ghassemlooy, Zabih, H. Le Minh, Burton, Andrew, Rajbhandari, Sujan, Haigh, Paul, Le Minh, Hoa, Rajbhandari, S.   +14 more
core   +1 more source

Wavelength-Multiplexed Polymer LEDs: Towards 55 Mb/s Organic Visible Light Communications [PDF]

, 2015
We present recent progress on visible light communication systems using polymer light-emitting diodes as the transmitters and a commercial silicon photodetector as the receiver.
Papakonstantinou, I, Bausi, Francesco, Haigh, PA, Cacialli, Franco, Haigh, Paul Anthony, Le Minh, H, Burton, A, Cacialli, F, Popoola, Wasiu Oyewole, Bausi, F, Papakonstantinou, Ioannis, Popoola, Wasiu O., Burton, Andrew, Haigh, Paul, Le Minh, Hoa, Popoola, WO   +15 more
core   +1 more source

A Review of Advanced Transceiver Technologies in Visible Light Communications

Photonics, 2023
Visible Light Communication (VLC) is an emerging technology that utilizes light-emitting diodes (LEDs) for both indoor illumination and wireless communications.
Cuiwei He, Chen Chen
doaj   +1 more source

Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications

IEEE Photonics Journal, 2019
Ubiquitous light-emitting diodes provide natural infrastructures for multiuser visible light communications (VLCs). However, the current available works for multiuser VLC systems mainly focus on broadcast scenarios and beamforming techniques.
Zhen-Yu Wang, Hong-Yi Yu, Da-Ming Wang
doaj   +1 more source

A study on the VLC security at the physical layer for two indoor scenarios [PDF]

MATEC Web of Conferences, 2021
The visible light communication (VLC) systems are generally considered secure since the light cannot penetrate through solid objects. However, both in the line of sight (LoS) scenarios as well as in non LoS scenarios with wide and strong optical signal ...
Riurean Simona
doaj   +1 more source