Results 21 to 30 of about 8,543,121 (289)
Design of a visible light communication system for deep sea divers based on analogue frequency modulation [PDF]
, 2016 This paper presents the design, development and test of an underwater visible light communication system for the deep sea divers. To achieve a practical communication range, frequency modulation technique has been utilized to modulate the voice signal ...
Ahmad, Zahir +3 more
core +4 more sources
Fasys: Visible-Light-Based Communication and Positioning Services towards Smart Cities
Sensors, 2023 Visible-light-based transmission application plays an important role in various types of sensor services for the Internet of Things (IoTs). However, in big data scenarios, current visible-light-based systems cannot achieve concurrent high-speed ...
Baozhu Yu +4 more
doaj +1 more source
Improved Visible Light Communication Receiver Performance by Leveraging the Spatial Dimension [PDF]
, 2022 In wireless communications systems, signals can be transmitted as time (temporal) or spatial variants across 3D space, and in both ways. However, using temporal variant communication channels in high-speed data transmission introduces inter-symbol ...
Rahman, MD Rashed
core +1 more source
Zero power light labeling based on visible light communication
Dianxin kexue, 2023 In order to achieve zero energy consumption of visible light labels, MATLAB and MULTISIM were used to simulate the impedance matching of the receiver, matching the input impedance of the first-order equalization circuit with the internal resistance of ...
Tianyang MA, Xiongbin CHEN, Yiwu XU
doaj +2 more sources
An Indoor Visible Light Positioning System for Multi-Cell Networks
Photonics, 2022 Indoor positioning systems based on visible light communication (VLC) using white light-emitting diodes (WLEDs) have been widely studied in the literature. In this paper, we present an indoor visible-light positioning (VLP) system based on red–green–blue
Roger Alexander Martínez-Ciro +3 more
doaj +1 more source
An Overview of Visible Light Communication Systems
International journal of Computer Networks & Communications, 2015 Visible Light Communication (VLC) has gained great interest in the last decade due to the rapid developments in Light Emitting Diodes (LEDs) fabrication. Efficiency, durability and long life span of LEDs make them a promising residential lighting equipment as well as an alternative cheap and fast data transfer equipment.
Taner Çevik, Serdar Yilmaz
openaire +2 more sources
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. +14 more
core +1 more source
Visible light communications: Challenges and possibilities
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008 Solid-state lighting is a rapidly developing field. White-light and other visible LEDs are becoming more efficient, have high reliability and can be incorporated into many lighting applications. Recent examples include car head-lights based on white LEDs, and LED illumination as an architectural feature.
O'Brien, D +6 more
openaire +3 more sources
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
MAC/PHY Comprehensive Visible Light Communication Networks Simulation
Sensors, 2020 In this paper, the effect of channel conditions on the global behavior of a wireless Visible Light Communications (VLC) optical network are studied.
Edmundo Torres-Zapata +4 more
doaj +1 more source