Results 21 to 30 of about 251,545 (286)
Frontiers of Physics, 2021 The demand for data transmission is rising expensively for the applications of biomedical sensors data, multimedia technologies, and ultrahigh-definition online video streaming. Such applications require larger bandwidth with minimum latency and seamless
Suresh Kumar +2 more
semanticscholar +1 more source
Hybrid OFDM and Radio-Over-Fiber Transport System Based on a Polarization Modulator
IEEE 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
IEEE 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
Duobinary modulation/predistortion techniques effects on high bit rate radio over fiber systems
, 2021 The work has presented duobinary modulation and predistortion techniques for the radio over fiber system enhancement for achieving security level. Duobinary modulation technique has more compact modulated spectral linewidth with standard non return to ...
Mahmoud M. A. Eid +5 more
semanticscholar +1 more source
Advanced radio over fiber network technologies
Optics Express, 2013 The evolution of wireless communication networks supporting emerging broadband services and applications offers new opportunities for realizing integrated optical and wireless network infrastructures. We report on some of our recent activities investigating advanced technologies for next generation converged optical wireless networks.
Dalma, Novak, Rod, Waterhouse
openaire +2 more sources
Power limits with adjustable 10G receiver parameters for A-RoF transmission
Elektronika 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
Optical Fiber Communications Conference and Exhibition, 2022 Sigma-Delta-over-Fiber and Analog-Radio-over-Fiber are compared in terms of non-linearity impairments in a transmitter with external optical modulation. The results show that Sigma-Delta-over-Fiber is more robust towards nonlinear characteristics in the ...
F. Olofsson +3 more
semanticscholar +1 more source
Phase-modulated radio over fiber multimode links
Optics Express, 2012 We present the first experimental demonstration of a phase-modulated MMF link implementing high-frequency digital transmission in a cost-effective solution based on direct detection. Successful subcarrier transmission of QPSK, 16-QAM and 64-QAM data channels for bit rates up to 120 Mb/s through a 5 km MMF link is achieved over the microwave region ...
Gasulla Mestre, Ivana +1 more
openaire +3 more sources
Photonic Systems and Devices for Linear Cell Radar
Applied Sciences, 2019 This paper reviews linear cell radar systems, which are radar systems consisting of many antenna units connected by radio-over-fiber to monitor linear-shaped areas. A linear cell system using a millimeter-wave band can provide high-resolution imaging for
Tetsuya Kawanishi +4 more
doaj +1 more source
Transport Schemes for Fiber-Wireless Technology: Transmission Performance and Energy Efficiency
Photonics, 2014 Fiber-wireless technology has been actively researched as a potential candidate for next generation broadband wireless signal distribution. Despite the popularity, this hybrid scheme has many technical challenges that impede the uptake and commercial ...
Christina Lim +2 more
doaj +1 more source