Results 41 to 50 of about 110,006 (297)

Multiuser Massive MIMO-OFDM for Visible Light Communication Systems

IEEE Access, 2023
Visible light communication (VLC) has emerged as a viable supplement to existing radio frequency (RF) communication systems. The limited modulation bandwidth of sources is one of the significant challenges in the multiuser (MU) VLC systems, which ...
Mohammad Javad Zakavi, S. Alireza Nezamalhosseini, Lawrence R. Chen   +2 more
doaj   +1 more source

Design for The Indoor Visible Light Communication Application System Based on LED Visible Light

MATEC Web of Conferences, 2017
This paper designs an indoor visible light communication application system based on LED. The system can modulate the original signal one or more times, move to a specific frequency band, transmit on the power line, in the LED terminal use this module to
Lian Wenyu, Liu Jia, Cui Shigang, He Lin, Zhang Yunxi   +4 more
doaj   +1 more source

An All-Organic Flexible Visible Light Communication System

Sensors, 2018
Visible light communication systems can be used in a wide variety of applications, from driving to home automation. The use of wearables can increase the potential applications in indoor systems to send and receive specific and customized information. We
César Vega-Colado, Belén Arredondo, Juan Carlos Torres, Eduardo López-Fraguas, Ricardo Vergaz, Diego Martín-Martín, Gonzalo del Pozo, Beatriz Romero, Palvi Apilo, Xabier Quintana, Morten A. Geday, Cristina de Dios, José Manuel Sánchez-Pena   +12 more
doaj   +1 more source

Using Linear Interpolation to Reduce the Training Samples for Regression Based Visible Light Positioning System

IEEE Photonics Journal, 2020
We put forward and experimentally demonstrate a second order machine-learning (ML) based visible-light-positioning (VLP) system using simple linear interpolation algorithm to reduce the training samples required in the ML algorithm.
Yu-Chun Wu, Ke-Ling Hsu, Yang Liu, Chong-You Hong, Chi-Wai Chow, Chien-Hung Yeh, Xin-Lan Liao, Kun-Hsien Lin, Yi-Yuan Chen   +8 more
doaj   +1 more source

Angle-of-Arrival (AOA) Visible Light Positioning (VLP) System Using Solar Cells With Third-Order Regression and Ridge Regression Algorithms

IEEE Photonics Journal, 2020
We put forward and demonstrate a angle-of-arrival (AOA) based visible-light-positioning (VLP) system using quadrant-solar-cell (QSC) and third-order ridge regression machine learning (RRML) to improve the positioning accuracy.
Chong-You Hong, Yu-Chun Wu, Yang Liu, Chi-Wai Chow, Chien-Hung Yeh, Ke-Ling Hsu, Dong-Chang Lin, Xin-Lan Liao, Kun-Hsien Lin, Yi-Yuan Chen   +9 more
doaj   +1 more source

Power distribution and Q-factor analysis of diffuse cellular indoor visible light communication systems [PDF]

, 2011
Comparing with the existing incandescent, light-emitting diodes (LEDs) offer higher power efficiency, higher brightness, longer lifetime, and have a fast dynamic response in the order of a few megahertz.
Ghassemlooy, Zabih, Wu, Dehao, Kavian, Yousef, Rajbhandari, Sujan, Le Minh, Hoa   +4 more
core  

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

Off-Axis Co-Optical Path Large-Range Line Scanning Chromatic Confocal Sensor

Photonic Sensors
This article proposes a line scanning chromatic confocal sensor to solve the problem of limited chromatic confocal measurement due to the small measurement range and low measurement efficiency in the industrial inspection process.
Meizhong Liao, Yuqi Yang, Xiaolian Lu, Haiqi Li, Jun Zhang, Jinfeng Wang, Zhe Chen   +6 more
doaj   +1 more source

Single-Source VLCP System Based on Solar Cell Array Receiver and Right-Angled Tetrahedron Trilateration VLP (RATT-VLP) Algorithm

Photonics
A significant deployment limitation for visible light communication and positioning (VLCP) systems in energy- and light-source-restricted scenarios is the reliance of photodetectors (PDs) on external power supplies, compromising sustainability and ...
Dawei Xie, Zhongxu Liu, Changyuan Yu
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source