Results 11 to 20 of about 20,056 (308)

High-frequency Si/SiGe phototransistor model: Operation on multiple polarization points [PDF]

open access: yesE3S Web of Conferences, 2022
This article presents the results of our research on the modeling of an HPT SiGe heterojunction phototransistor. Usually this HPTs type work for a single point of polarization in this work, we were interested in modeling the same HPT on different points ...
Diop A.M.   +6 more
doaj   +1 more source

High Spectrum Efficiency and High Security Radio-Over-Fiber Systems with Compressive-Sensing-Based Chaotic Encryption. [PDF]

open access: yesMicromachines (Basel)
With the increasing demand for high throughput and ultra-dense small cell deployment in the next-generation communication networks, spectrum resources are becoming increasingly strained.
Wang Z   +5 more
europepmc   +2 more sources

Analisa Perbandingan Kinerja Modulasi Langsung dan Modulasi Eksternal pada Adaptif Fiber Bragg Grating di Radio over Fiber System

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2023
Kombinasi Frekuensi Radio dan Fiber Optik telah menghasilkan transmisi berkapasitas tinggi dengan biaya komponen yang lebih rendah dan menjadikan Radio over Fiber sebagai trend komunikasi broadband besar saat ini.
Febrizal Ujang   +5 more
doaj   +1 more source

Power over Fiber in Radio over Fiber Systems in 5G Scenarios [PDF]

open access: yes2019 21st International Conference on Transparent Optical Networks (ICTON), 2019
5G verticals needs of dedicated power architectures for providing efficient systems. Some schematics and measurements on optical power delivery to remote nodes in 5G scenarios are described. Different types of optical fibers including plastic and silica optical fibers are considered.
Carmen Vázquez 0001   +5 more
openaire   +2 more sources

Optically Powered and Controlled Drones Using Optical Fibers for Airborne Base Stations

open access: yesPhotonics, 2022
Mobile communication services are crucial during emergency disasters and temporary events, and future mobile communication systems should be able to provide such services. Airborne base stations using drones are highly effective as stand-in base stations
Natsuki Shindo   +4 more
doaj   +1 more source

An Optically Powered Radio over Fiber Remove Unit using Wavelength Division Multiplexing [PDF]

open access: yes, 2008
Power over fiber and radio over fiber transmission have been combined in a single optical fiber using wavelength division multiplexing for the first time.
C. Lethien   +12 more
core   +1 more source

RoFnet – Reconfigurable Radio over Fiber Network Architecture Overview

open access: yesJournal of Telecommunications and Information Technology, 2023
This paper introduces the basic operational concepts of the RoFnet – reconfigurable radio over fiber network, which is a project supported by the Portuguese Foundation forScience and Technology.
Maria C. R. Medeiros   +8 more
doaj   +1 more source

Analog Radio Over Fiber Aided C-RAN: Optical Aided Beamforming for Multi-User Adaptive MIMO Design

open access: yesFrontiers in Communications and Networks, 2021
Given the increasing demand for high data-rate, high-performance wireless communications services, the demand on the radio access networks (RAN) has been increasing significantly, where optical fiber has been widely used both for the backhaul and ...
Yichuan Li   +4 more
doaj   +1 more source

Fiber link design considerations for cloud-Radio Access Networks [PDF]

open access: yes, 2014
Analog radio over fiber (RoF) links may offer advantages for cloud-Radio Access Networks in terms of component cost, but the behavior of the distortion with large numbers of subcarriers needs to be understood. In this paper, this is presented in terms of
Luis C. Vieira   +7 more
core   +1 more source

Remote downconversion scheme for uplink configuration in radio/fiber systems [PDF]

open access: yes, 2005
The authors present a novel technology for uplink transmission in radio over fiber (RoF) distribution systems. The technique employs remote downconversion of the uplink data to intermediate frequency (IF) in the base station (BS).
Barry, Liam P.   +3 more
core   +1 more source

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