Results 31 to 40 of about 6,925 (205)
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 +10 more
doaj +1 more source
Improvement of indoor VLC network downlink scheduling and resource allocation [PDF]
, 2016 Indoor visible light communications (VLC) combines illumination and communication by utilizing the high-modulation-speed of LEDs. VLC is anticipated to be complementary to radio frequency communications and an important part of next generation ...
Chen, Yan +2 more
core +1 more source
Adaptive Dual Color Visible Light Communication (VLC) System [PDF]
, 2018 In this work, we propose a Visible Light Communication (VLC) system dynamically adapting, through a decision-making process based on a simple fuzzy-logic, the transmitting color selection to the external environmental conditions. Transmitted Signals are opportunisti-cally treated through softwarization approaches by using basic hardware (i.e.
Costanzo, Antonio +2 more
openaire +2 more sources
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
Dynamic FOV visible light communications receiver for dense optical networks [PDF]
, 2019 This study explores how the field-of-view (FOV) of a visible light communications (VLCs) receiver can be manipulated to realise the best signal-to-noise ratio (SNR) while supporting device mobility and optimal access point (AP) selection.
Abdalla, I. +2 more
core +1 more source
Single-Photon Avalanche Diodes in CMOS Technologies for Optical Communications [PDF]
, 2017 As optical communications may soon supplement Wi-Fi technologies, a concept known as visible light communications (VLC), low-cost receivers must provide extreme sensitivity to alleviate attenuation factors and overall power usage within communications ...
Fisher, Edward
core +2 more sources
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
Multiple Access Techniques for VLC in Large Space Indoor Scenarios: A Comparative Study [PDF]
, 2019 The growing demand for high speed indoor wireless connectivity is among the driving forces for data transmission based on visible-light communications (VLC). For relatively large-space indoor scenarios, the development of appropriate spectrally-efficient
Eltokhey, Mahmoud Wafik +2 more
core +3 more sources
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
Efficient frequency-domain channel equalisation methods for OFDM visible light communications [PDF]
, 2016 The authors present efficient frequency-domain channel estimation methods based on the intra-symbol frequency-domain averaging (ISFA), minimum mean squared error (MMSE) and weighted inter-frame averaging (WIFA) schemes for the orthogonal frequency ...
Ghassemlooy, Zabih +6 more
core +1 more source