Results 11 to 20 of about 847,683 (321)

Multiuser MIMO-OFDM for Visible Light Communications

open access: yesIEEE Photonics Journal, 2015
Visible light communication (VLC) is emerging as a promising technique to provide ubiquitous wireless connection. In this paper, a multiuser VLC system utilizing multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) is ...
Qi Wang, Zhaocheng Wang, Linglong Dai
doaj   +2 more sources

Deep Q-Learning-Based Resource Allocation in NOMA Visible Light Communications

open access: yesIEEE Open Journal of the Communications Society, 2022
Visible light communication (VLC) has been introduced as a key enabler for high-data rate wireless services in future wireless communication networks. In addition to this, it was also demonstrated recently that non-orthogonal multiple access (NOMA) can ...
Ahmed Al hammadi   +5 more
doaj   +2 more sources

Dimmable Visible Light Communications Based on Multilayer ACO-OFDM

open access: yesIEEE Photonics Journal, 2016
This paper proposes a dimmable scheme for a visible light communication (VLC) system based on multilayer asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM), which is able to support a wide dimming range for different ...
Qi Wang   +3 more
doaj   +2 more sources

Mobile User Connectivity in Relay-Assisted Visible Light Communications [PDF]

open access: yesSensors, 2018
In this paper, we investigate relay-assisted visible light communications (VLC) where a mobile user acts as a relay and forwards data from a transmitter to the end mobile user.
Petr Pešek   +5 more
doaj   +2 more sources

Organic semiconductors for visible light communications. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2020
Organic semiconductors are an important class of optoelectronic material that are widely studied because of the scope for tuning their properties by tuning their chemical structure, and simple fabrication to make flexible films and devices. Although most effort has focused on developing displays and lighting from these materials, their distinctive ...
Manousiadis PP   +3 more
europepmc   +5 more sources

Negatively Biased Solar Cell Optical Receiver for Underwater Wireless Optical Communication System With Low Peak Average Power Ratio

open access: yesIEEE Photonics Journal, 2022
Charging batteries in underwater scenarios is generally very expensive and impractical, and solar cell (SC)-based underwater simultaneous lightwave information and power transfer (SLIPT) systems are a powerful solution.
Wen Lei   +5 more
doaj   +1 more source

Visible Light Communications via Intelligent Reflecting Surfaces: Metasurfaces vs Mirror Arrays

open access: yesIEEE Open Journal of the Communications Society, 2021
We propose two types of intelligent reflecting systems based on programmable metasurfaces and mirrors to focus the incident optical power towards a visible light communication receiver.
A. Abdelhady   +4 more
semanticscholar   +1 more source

Visible Light Communications Illuminates the Future

open access: yesAdvances in Computing and Engineering, 2021
The use of Internet, video and audio calls at a very low cost is now common for all people around the world. This implies a tremendous carrying capacity for the carrier wave.
Moustafa Hussein
doaj   +1 more source

Joint Resource Management for Intelligent Reflecting Surface–Aided Visible Light Communications

open access: yesIEEE Transactions on Wireless Communications, 2022
Though visible light communication (VLC) is a significant supplement to current communication technologies, disadvantages such as the sensitivity to obstacles limit its development and commercialization.
Shiyuan Sun   +3 more
semanticscholar   +1 more source

Positioning Using Visible Light Communications: A Perspective Arcs Approach [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2022
Visible light positioning (VLP) is an accurate indoor positioning technology that uses luminaires as transmitters. In particular, circular luminaires are a common source type for VLP, which are typically treated only as point sources for positioning ...
Zhiyu Zhu   +5 more
semanticscholar   +1 more source

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