Results 31 to 40 of about 59,671 (235)

Efficient Exploitation of Radio Frequency and Visible Light Communication Bands for D2D in Mobile Networks [PDF]

open access: yes, 2019
The concept of device-to-device (D2D) communication, combining common radio frequency (RF) and visible light communication (VLC), is seen as a feasible way how to cope with spectrum crunch in the RF domain and how to maximize spectral efficiency in ...
Bečvář Z.   +4 more
core   +1 more source

An Efficient Flicker-Free FEC Coding Scheme for Dimmable Visible Light Communication Based on Polar Codes

open access: yesIEEE Photonics Journal, 2017
Visible light communication (VLC) can provide short-range optical wireless communication, together with illumination using light-emitting diode (LED) lightings.
Junbin Fang   +7 more
doaj   +1 more source

THROUGHPUT INCREASE IN THE OFFICE LI-FI SYSTEM

open access: yesInformation and Telecommunication Sciences, 2021
Background. Wi-Fi has many disadvantages, such as how the maximum bandwidth is limited by the frequency of the range. The work uses Li-Fi technology, which uses visible light for data transmission.
Олександр Романов   +1 more
doaj   +1 more source

A Comprehensive Modeling of Vehicle-to-Vehicle Based VLC System Under Practical Considerations, an Investigation of Performance, and Diversity Property

open access: yesIEEE Transactions on Communications, 2022
In this work, a vehicle-to-vehicle (V2V) visible light communications (VLC) model for two practical scenarios, is proposed. In scenario 1, the random lateral shift of vehicles and the deterministic longitudinal separation between two communicating ...
Pranav Sharda   +3 more
semanticscholar   +1 more source

Design and Implementation of a Voice Broadcasting System from a PC to Mobile Devices [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
Mobile technology is rapidly developed, this developing leads the production of the multimedia smartphone that supports wireless LAN (WLAN) that are widely deployed because of its ease of use, flexibility, sharing application and support for multimedia ...
Omar Ibrahim, Omar AL-Saffar
doaj   +1 more source

Meta-Reinforcement Learning for Reliable Communication in THz/VLC Wireless VR Networks [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2021
In this paper, the problem of enhancing the quality of virtual reality (VR) services is studied for an indoor terahertz (THz)/visible light communication (VLC) wireless network.
Yining Wang   +6 more
semanticscholar   +1 more source

ELOVL4 Mutations That Cause Spinocerebellar Ataxia-34 Differentially Alter Very Long Chain Fatty Acid Biosynthesis

open access: yesJournal of Lipid Research, 2023
The FA Elongase-4 (ELOVL4) enzyme mediates biosynthesis of both very long chain (VLC)-PUFAs and VLC-saturated FA (VLC-SFAs). VLC-PUFAs play critical roles in retina and sperm function, whereas VLC-SFAs are predominantly associated with brain function and
Yeboah Kofi Gyening   +5 more
doaj   +1 more source

Sistem Komunikasi Suara Bawah Air dengan Metoda Simplex menggunakan Visible Light Communication (VLC)

open access: yesJurnal Elkomika, 2019
ABSTRAK Sistem komunikasi suara bawah air telah dikenal sejak lama, diantaranya sonar dan akustik. Seiring perkembangan zaman dan kemajuan teknologi, kini hadir komunikasi dengan media transmisi cahaya tampak yaitu Visible Light Communication (VLC) yang
LUCIA JAMBOLA   +3 more
doaj   +1 more source

Cryptanalysis of an MPEG-Video Encryption Scheme Based on Secret Huffman Tables [PDF]

open access: yes, 2007
This paper studies the security of a recently-proposed MPEG-video encryption scheme based on secret Huffman tables. Our cryptanalysis shows that: 1) the key space of the encryption scheme is not sufficiently large against divide-and-conquer (DAC) attack ...
A. Uhl   +10 more
core   +3 more sources

Distributed DRL-Based Downlink Power Allocation for Hybrid RF/VLC Networks

open access: yesIEEE Photonics Journal, 2022
Hybrid radio frequency (RF) and visible light communication (VLC) networks can provide high throughput and energy efficiency with VLC access points (APs) while ensuring ubiquitous coverage with RF APs.
B. Ciftler   +2 more
semanticscholar   +1 more source

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