Results 31 to 40 of about 6,856 (205)
An Adaptive Turbo Coded-OFDM Scheme for Visible Light Communications [PDF]
, 2019 In visible light communications (VLC) the main bottleneck is the limited bandwidth of the light emitting diodes, which limits the maximum transmission data rates.
Ataee, Mahdi +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
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
Optical Non-Orthogonal Multiple Access for Visible Light Communication [PDF]
, 2017 The proliferation of mobile Internet and connected devices, offering a variety of services at different levels of performance, represents a major challenge for the fifth generation wireless networks and beyond.
Hussain, Sajjad +5 more
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
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
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
Experimental demonstration of RGB LED-based optical camera communications [PDF]
, 2015 Red, green, and blue (RGB) light-emitting diodes (LEDs) are widely used in everyday illumination, particularly where color-changing lighting is required.
Luo, Pengfei +7 more
core +3 more sources
IEEE Access, 2022 Visible Light Communications (VLC) are receiving increased attention in the wireless communications research community. VLC is secured, power efficient, and operates in the visible light range, thus RF communication bandwidth limitation is overcome.
Sara M. Farid +3 more
doaj +1 more source