Results 61 to 70 of about 813 (181)

Debunking war information disorder: A case study in assessing the use of multimedia verification tools

Journal of the Association for Information Science and Technology, Volume 76, Issue 5, Page 752-769, May 2025.
Abstract This paper investigates the use of multimedia verification, in particular, computational tools and Open‐source Intelligence (OSINT) methods, for verifying online multimedia content in the context of the ongoing wars in Ukraine and Gaza. Our study examines the workflows and tools used by several fact‐checkers and journalists working at Faktisk,
Sohail Ahmed Khan, Laurence Dierickx, Jan‐Gunnar Furuly, Henrik Brattli Vold, Rano Tahseen, Carl‐Gustav Linden, Duc‐Tien Dang‐Nguyen   +6 more
wiley   +1 more source

Performance Analysis of SIMO‐UVLC System in Mix‐Water Medium

Engineering Reports, Volume 7, Issue 4, April 2025.
An autonomous underwater vehicle (AUV) communicates with a submarine that is mounted M‐ary of LEDs. It is considered that AUV transmits optical signals through mixed water layers within strong turbulence channel conditions while maintaining pointing error.
Mohammad Furqan Ali, Dushantha Nalin K. Jayakody   +1 more
wiley   +1 more source

Physical-Layer Security for Indoor Hybrid PLC/VLC Networks With NOMA

IEEE Open Journal of the Communications Society
Hybrid power line communication (PLC)/visible light communication (VLC) networks have been demonstrated to be crucial for indoor practical communications and have attracted widespread attention.
Xiang Zhao, Yuqing Zhao, Ju Huang, Wenbo Zhao, Jinyong Sun   +4 more
doaj   +1 more source

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

Indoor Positioning for Multiphotodiode Device Using Visible-Light Communications

IEEE Photonics Journal, 2016
With the widespread use of light-emitting diodes (LEDs) for lighting, their ability to support communications through visible light has become promising for various wireless applications.
Wei Xu, Jia Wang, Hong Shen, Hua Zhang, Xiaohu You   +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

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

Signal-to-Noise Ratio Enhancements Enabling 1.6-km Outdoor Visible Light Communication Using Vehicle Lights and Cameras

IEEE Access
Light-based communications offer a promising alternative to alleviate congestion in crowded radio frequency bands and extend communication frequencies towards the THz range.
Don E. Barber, Sean M. Kennedy, John C. McEachen, Murali Tummala   +3 more
doaj   +1 more source

Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications

IEEE Photonics Journal, 2018
Color converting films of colloidal quantum dots (CQDs) encapsulated with flexible glass are integrated with microsize GaN LEDs (μLEDs) in order to form optical sources for high-speed visible light communications (VLC).
Caroline Foucher, Mohamed Islim Sufyan, Benoit Jack Eloi Guilhabert, Stefan Videv, Sujan Rajbhandari, Ariel Gomez Diaz, Hyunchae Chun, Dimali A. Vithanage, Graham A. Turnbull, Ifor D. W. Samuel, Grahame Faulkner, Dominic C. O'Brien, Harald Haas, Nicolas Laurand, Martin D. Dawson   +14 more
doaj   +1 more source

Recent Progress in GaN-Based High-Bandwidth Micro-LEDs and Photodetectors for High-Speed Visible Light Communication

Photonics
Visible light communication (VLC) is an emerging communication technology that integrates lighting and communication, offering significant advantages in terms of data transmission rates and broad application prospects.
Handan Xu, Jiakang Ai, Tianlin Deng, Yuandong Ruan, Di Sun, Yue Liao, Xugao Cui, Pengfei Tian   +7 more
doaj   +1 more source