Results 21 to 30 of about 104,021 (275)

Low-Complexity Beamforming Design for a Cooperative Reconfigurable Intelligent Surface-Aided Cell-Free Network

open access: yesSensors, 2023
Cell-free (CF) networks are proposed to suppress the interference among collocated cells by deploying several BSs without cell boundaries. Nevertheless, as installing several base stations (BSs) may require high power consumption, cooperative CF networks
Muhammad Zain Siddiqi   +6 more
doaj   +1 more source

Optical Wireless Cabin Communication System [PDF]

open access: yes2019 IEEE Conference on Standards for Communications and Networking (CSCN), 2019
Offering a high data rate to users inside the cabin is attractive for the aircraft building companies. This paper presents an optical wireless system that uses visible light for transmitting data. The reading light for each seat is used as a transmitter in this work to offer high data rates.
Osama Zwaid Alsulami   +2 more
openaire   +2 more sources

Parasitic Elements Shorted to Ground to Enhance the Bandwidth of a Dual-Polarized Antenna

open access: yesInternational Journal of Antennas and Propagation, 2022
An ultra-wideband dual-polarized antenna covering multiple communication standards such as LTE700/GSM850/GSM900 is proposed in this paper. The antenna consists of two dipoles that are perpendicularly placed to each other. The two dipoles can generate +45°
Haokai Jia, Jinjun Mo, Lin Peng
doaj   +1 more source

ENHANCEMENT OF DATA MANAGEMENT IN BROADBAND WIRELESS COMMUNICATION SYSTEM USING MOBILITY MANAGEMENT MODEL

open access: yesICTACT Journal on Communication Technology, 2022
With the development of communication networks towards broadband and mobility, optical fiber wireless communication system combines optical fiber communication and wireless communication.
Nirmal Adhikari   +2 more
doaj   +1 more source

Experimental Study and Application of Response Mask Invariant Characteristic for Generalized Visible Light Communication Channel

open access: yesIEEE Photonics Journal, 2018
In this paper, we describe a generalized visible light communication (VLC) channel, which consists of the frequency responses of the light emitting diode (LED), the wireless optical channel, and the photo detector (PD).
Fangzhou Wu   +3 more
doaj   +1 more source

Future broadband access network challenges [PDF]

open access: yes, 2010
Copyright @ 2010 IEEEThe optical and wireless communication systems convergence will activate the potential capacity of photonic technology for providing the expected growth in interactive video, voice communication and data traffic services that are ...
Abdollahi, SR   +3 more
core   +1 more source

Optical Wireless Information Transfer with Nonlinear Micromechanical Resonators [PDF]

open access: yes, 2017
Wireless transfer of information is the basis of modern communication. It includes cellular, WiFi, Bluetooth and GPS systems, all of which use electromagnetic radio waves with frequencies ranging from typically 100 MHz to a few GHz. However, several long-
Boales, Joseph A   +2 more
core   +2 more sources

Fully Photonic Wireless Link for Transmission of Synchronization Signals [PDF]

open access: yes, 2016
Rapid industrialization and increasing demand of business tools for high-speed communications supports the request for optical communications in free space. Copper cables and related technologies such as cable modems and Digital Subscriber Line (DSL) are
Barcik, P., Kolka, Zdeněk, Wilfert, O.
core   +4 more sources

HRO-OFDM Scheme Design and Optimization for a Hybrid RF/VLC Baseband System

open access: yesIEEE Photonics Journal, 2017
A hybrid radio frequency (RF) and visible light communication (VLC) system can provide better data rate performance and user experience, and only the hybrid RF/VLC systems that use independent RF access points (APs) and VLC APs have been currently ...
Fangzhou Wu, Li Chen, Weidong Wang
doaj   +1 more source

V-Shape Liquid Crystal-Based Retromodulator Air to Ground Optical Communications [PDF]

open access: yes, 2008
This paper describes the use of a 2D liquid crystal retro-modulator as a free space, wireless, optical link. The retro-modulator is made up of a retro-reflecting cornercube onto which 2 cascaded V-shape smectics liquid crystal modulators are mounted. The
A. Carrasco   +7 more
core   +3 more sources

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