Results 11 to 20 of about 21,925 (307)

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

Perspectives of Radio over Fiber Technologies [PDF]

open access: yesOFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008
Radio-over-fiber technologies enable efficient provisioning of broadband wireless services both in access and in in-building networks, in particular when combined with flexible optical routing and dispersion-robust RoF transport techniques, such as optical frequency multiplying.
Koonen A.M.J.   +6 more
openaire   +1 more source

Low power all-digital radio-over-fiber transmission for 28-GHz band using parallel electro-absorption modulators [PDF]

open access: yes, 2020
We present a low-power all-digital radio-over-fiber transmitter for beyond 28-GHz using sigma-delta modulation, a 140mW NRZ driver and parallel electro-absorption modulators. 5.25Gb/s (2.625Gb/s) 64-QAM is transported over 10-km SSMF at 1560nm with 7.6% (
Bauwelinck, Johan   +12 more
core   +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

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

Radio-over-fiber transmission using vortex modes [PDF]

open access: yes2015 International Topical Meeting on Microwave Photonics (MWP), 2015
This paper demonstrates experimentally the distribution of radio-over-fiber (RoF) signals using orbital angular momentum (OAM) of light over standard OM4 multimode fiber (MMF) at 850 nm wavelength. Five independent OAM modes are used to convey RoF signals in the microwave regime showing robust performance and therefore opening new prospects for ...
Tatarczak, A.   +5 more
openaire   +2 more sources

Fast tunable lasers in radio-over-fiber access networks [PDF]

open access: yes, 2006
The authors present a novel concept of employing optical wavelength packet switching (WPS) in radio-over-fiber (RoF) access networks. The Central Station is equipped with a fast tunable laser (TL), which is externally modulated with a data signal ...
Barry, Liam P.   +3 more
core   +1 more source

Experimental characterization of Sigma Delta Radio over fiber system for 5G C-RAN downlink

open access: yesICT Express, 2020
Radio over Fiber is a promising technology for the 5G Cloud Radio Access Network. We demonstrate experimentally Sigma Delta Radio over Fiber by means of Sigma Delta Modulator (SDM) subsequently replacing expensive digital to analog converters.
Muhammad Usman Hadi   +3 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

Demonstration of wavelength packet switched radio-over-fiber system [PDF]

open access: yes, 2007
The authors present a novel concept of employing optical wavelength packet switching in radio-over-fiber access networks. In such a system, the tunable laser (TL) would be employed as a transmitter in the central station. The optical carrier generated by
Barry, Liam P.   +3 more
core   +1 more source

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