Results 121 to 130 of about 10,695,132 (298)

Radio over fibre distribution systems for ultra-wide band and millimetre wave applications [PDF]

open access: yes, 2011
Short range wireless technology such as ultra-wideband (UWB) and 60 GHz millimetre wave (mm-wave) play a key role for wireless connectivity in indoor home, office environment or large enclosed public areas.
Shams Eldin, Haymen
core   +2 more sources

Fully photonic analogue to digital conversion technique for super broadband digitized radio over fibre link [PDF]

open access: yes, 2011
The official published version can be obtained from the link below - Copyright @ 2011 IEEEDigitized-Radio over Fibre (DRoF) techniques provide higher dynamic range and are more robust against optical link impairments.
Nilavalan, R   +2 more
core   +3 more sources

Linearization Technologies for Broadband Radio-Over-Fiber Transmission Systems

open access: yesPhotonics, 2014
Linearization technologies that can be used for linearizing RoF transmission are reviewed. Three main linearization methods, i.e. electrical analog linearization, optical linearization, and electrical digital linearization are presented and compared ...
Xiupu Zhang   +3 more
doaj   +1 more source

Performance evaluation of radio-over-fibre (RoF) system using Mach-Zehnder Modulator (MZM) and on-off keying (OOK) modulation schemes [PDF]

open access: yes, 2010
This paper investigates the bit error rate (BER) performance of a radio-over-fibre system utilizing binary phase shift keying (BPSK) at radio frequency (RF) of 5 GHz. The RF signal is externally modulated using the Mach-Zehnder modulator (MZM).
Ghassemlooy, Zabih   +5 more
core  

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

open access: yesAdvanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa   +5 more
wiley   +1 more source

Photonic integrated technologies for future radio-over-fiber systems [PDF]

open access: yesAPL Photonics
This Tutorial explores the pivotal role of photonic integrated technologies for future radio-over-fiber systems, covering their operational principles, evolution, and open issues.
Luca Rinaldi   +3 more
doaj   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Energy-efficient radio-over-fiber system for next-generation cloud radio access networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
The paper proposes a novel adaptive radio-over-fiber (RoF) system for next-generation cloud radio access network (C-RAN), aiming to optimize the operation cost in terms of power consumption while maintaining required data rate. By jointly considering the
Bo Wang, Limei Peng, Pin-Han Ho
doaj   +1 more source

Modal noise impact in Radio over Fiber multimode fiber links

open access: yesOptics Express, 2008
A novel analysis is given on the statistics of modal noise for a graded-index multimode fiber (MMF) link excited by an analog intensity modulated laser diode. We present the speckle contrast as a function of the power spectrum of the modulated source and the transfer function of the MMF which behaves as an imperfect transversal microwave photonic ...
Gasulla I., Capmany J.
openaire   +2 more sources

Reduced Dispersion Duplex DQPSK Radio-Over-Fiber Communications Using Single-Laser-Based Multiple Side-Bands

open access: yes
Multiple side-bands are generated from a single laser diode with the aid of optical carrier suppression, which facilitates the transmission of reduced-rate parallel streams mapped to the side-bands. As a benefit, all the signal processing tasks including
Hanzo, Lajos, Ghafoor, Salman
core   +1 more source

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