Results 21 to 30 of about 20,056 (308)

Hybrid radio over fiber system for generation and distribution of UWB signals [PDF]

open access: yes, 2008
The authors investigate a hybrid radio over fiber system for the generation and distribution of UWB signals. This system is based on gain-switched laser, which is used to generate short optical pulses.
Barry, Liam P.   +5 more
core   +1 more source

Statistical Distribution of EVM Measurements for Direct-Modulation Radio-Over-Fiber Links Transporting OFDM Signals [PDF]

open access: yes, 2013
The effect of distortion on the error vector magnitude (EVM) performance of orthogonal frequency-division multiplexing (OFDM) signals with different numbers of subcarriers and the connection to the peak-to-average power ratio (PAPR) of such signals is ...
Nkansah, Anthony   +3 more
core   +1 more source

Hybrid OFDM and Radio-Over-Fiber Transport System Based on a Polarization Modulator

open access: yesIEEE Photonics Journal, 2015
A hybrid orthogonal frequency-division multiplexing (OFDM) and quadruple-frequency radio-over-fiber (RoF) transport system is developed based on colorless optical polarization beam splitters and an optical polarization-arrangement technique.
Ching-Hung Chang   +8 more
doaj   +1 more source

5G-Compatible IF-Over-Fiber Transmission Using a Low-Cost SFP-Class Transceiver

open access: yesIEEE Access, 2022
With the rise of 5G and beyond, the ever-increasing data-rates demanded by mobile access are severely challenging the capacity of optical fronthaul networks.
Marco A. Fernandes   +4 more
doaj   +1 more source

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.   +7 more
core   +1 more source

Baseband Radio over Fiber Aided Millimeter-Wave Distributed Antenna for Optical/Wireless Integration [PDF]

open access: yes, 2013
A Baseband Radio Over Fiber (BROF) architecture is proposed, where upto four Radio Frequency (RF) carriers can be generated, while using the heterodyne photo-detection of only two optical signals. This proposed BROF architecture has a star-like structure
Salman Ghafoor   +7 more
core   +1 more source

Multilevel modulated signal transmission over serial single-mode and multimode fiber links using vertical-cavity surface-emitting lasers for millimeter-wave wireless communications [PDF]

open access: yes, 2007
Quadrature phase-shift keying, 16 quadrature amplitude modulation (QAM), and 64-QAM data transmission-Worldwide Interoperability for Microwave Access modulation schemes-at 6 and 20 MS/s is demonstrated for a link that emulates a cost-effective 1.55-m ...
Shen, Pengbo   +3 more
core   +1 more source

Power limits with adjustable 10G receiver parameters for A-RoF transmission

open access: yesElektronika ir Elektrotechnika, 2023
Current paper characterizes the performance of the three-radio-frequency-channels, orthogonal-frequency-division-multiplexed (OFDM) radio-over-fiber (RoF) transmission system in terms of error-vector-magnitude and received optical signal power for a ...
Inna Kurbatska   +5 more
doaj   +1 more source

Simultaneous Dual Band Transmission Over Multimode Fiber-Fed Indoor Wireless Network [PDF]

open access: yes, 2006
Performance measurements of different combinations of digital enhanced cordless telecommunications packet radio service, global system for mobile communications, universal mobile telecommunication service, and 802.11g (54 Mbps) signals in a dual band ...
Lethien, Christophe   +7 more
core   +1 more source

Performance evaluation of OFDM and impulse-radio ultra-wideband over fiber distribution for in-building networks [PDF]

open access: yes, 2009
This paper reports the compared performance of the two main ultra-wideband (UWB) implementations, OFDM-based (OFDM-UWB) and impulse-radio UWB, when transmitted over optical fiber for in-building communications employing external electro-optic modulation.
Roberto Llorente   +7 more
core   +1 more source

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