Results 71 to 80 of about 6,856 (205)

Propagation Characteristics Comparisons between mmWave and Visible Light Bands in the Conference Scenario

Photonics, 2022
Millimeter-wave (mmWave) communications and visible light communications (VLC) are proposed to form hybrid mmWave/VLC systems. Furthermore, channel modeling is the foundation of system design and optimization.
Baobao Liu, Pan Tang, Jianhua Zhang, Yue Yin, Guangyi Liu, Liang Xia   +5 more
doaj   +1 more source

Multifunction LED Lighting System Combining Tunable Spectrum and Data Communication [PDF]

, 2015
A comparison of two different lighting systems combining tunable illumination, visible light communications (VLC) and sensing capabilities. The first method is based on light emitting diodes (LED) as light source and multifunction smart sensors and the ...
Rodríguez Trujillo, Alonso
core  

QCL‐Based Cryogen‐Free THz Optical Wireless Communication Link

Laser &Photonics Reviews, Volume 19, Issue 6, March 18, 2025.
A novel QCL‐based, cryogen‐free, and transportable wireless communication system is presented operating at 2.83 THz. The QCL device is mounted in a compact Stirling refrigerator, while a room‐temperature graphene‐based FET is used as a receiver, implementing a binary on‐off keying (OOK) modulation scheme with Manchester encoding.
Alessia Sorgi, Marco Meucci, Muhammad A. Umair, Francesco Cappelli, Guido Toci, Paolo De Natale, Leonardo Viti, Andrea C. Ferrari, Miriam S. Vitiello, Luigi Consolino, Jacopo Catani   +10 more
wiley   +1 more source

Multidimensional Constellation Design Based on Geometric Shaping for MISO VLC With Per-LED Optical Power Constraints

IEEE Photonics Journal
Visible light communication (VLC) integrates illumination and communication, offering significant potential for 6G mobile communications. In 6G communications, reliability and low latency are critical.
Bo Gao, Jia-Ning Guo, Jian Zhang, Yan-Yu Zhang, Dun Li   +4 more
doaj   +1 more source

Controlled Signal Technique in VL‐NOMA Communication Under Interference‐Controlled Environment With Intelligent Reflecting Surfaces

Engineering Reports, Volume 7, Issue 1, January 2025.
This paper proposes a controlled signal technique for visible light non‐orthogonal multiple access (VL‐NOMA) communication in an interference‐controlled environment with intelligent reflecting surfaces (IRS). We have used IRS, which is a cutting‐edge enabling technology that modifies the signal's reflection by utilizing numerous inexpensive passive ...
C. E. Ngene, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

Infrared Uplink Design for Visible Light Communication (VLC) Systems with Beam Steering [PDF]

2019 IEEE International Conference on Computational Science and Engineering (CSE) and IEEE International Conference on Embedded and Ubiquitous Computing (EUC), 2019
arXiv admin note: substantial text overlap with arXiv:1903.10923, arXiv:1903 ...
Alsulami, Osama Zwaid, Alresheedi, Mohammed T., Elmirghani, Jaafar M. H.   +2 more
openaire   +2 more sources

QoE‐based dynamic resource allocation for heterogeneous smart distribution grids

IET Communications, Volume 19, Issue 1, January/December 2025.
This article introduces an innovative metric termed as Quality of Experience (QoE) by amalgamating the terminal operations concerning data rate, latency, and packet loss rate. With the aim of maximizing the QoE, we design a dynamic resource allocation scheme in a heterogeneous wireless communication and power line communication network.
You Li, Yan Huo, Zhongguo Zhou, Qinghe Gao, Tao Jing, Tao Yan, Sisi Xiao   +6 more
wiley   +1 more source

Analysis of visible light communication (VLC)for biomedical application

International Journal of Engineering & Technology, 2018
In the visible light communication (VLC), light emitting diodes (LEDs) are used as transmitters; the air is the transmission medium and the photodiodes are used for receivers. This is often referred to as light fidelity (Li-Fi). In this method, provide the methodology to evaluate the performance of VLC hotspot networks in the context of data ...
S Yogeeswaran, Ramesh G P
openaire   +1 more source

Performance Enhancement of Indoor VLC Systems Using DPSS‐Based DCO‐GFDM Modulation

IET Communications, Volume 19, Issue 1, January/December 2025.
VLC is a promising solution for future wireless communication systems due to its high data rate, wide bandwidth, and enhanced security features. However, challenges such as high PAPR and OOB spectral leakage limit its performance. In this study, we propose the integration of DPSS with DCO‐GFDM to enhance the performance of indoor VLC systems.
Amin Emami, Gholamreza Baghersalimi, Hossein Goorani   +2 more
wiley   +1 more source

Robust Connectivity in 6G Enabled Indoor VLC Networks Using Intelligent Reflecting Surfaces

IET Communications, Volume 19, Issue 1, January/December 2025.
Visible light communication (VLC) in 6G optical networks offers high data rates with extended network coverage. The challenge is that these VLC networks are susceptible to signal obstructions that lower line‐of‐sight (LoS) link quality. This paper proposes a novel framework that uses Intelligent reflecting surfaces, which provide improved non‐LoS ...
Ali Alqahtani, Ashu Taneja, Nayef Alqahtani   +2 more
wiley   +1 more source