Results 21 to 30 of about 149,583 (306)
Radio-over-fiber transmission using vortex modes [PDF]
2015 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
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
Study of millimeter wave phase shift in 40 GHz hybrid mode locked lasers [PDF]
, 2009 An investigation into using hybrid mode-locked lasers to implement millimeter wave phase shift is presented. The phase shift is measured directly using a vector network analyzer enabling straightforward characterization of such systems.
Cryan, MJ, Khawaja, BAM
core +2 more sources
Remote downconversion with wavelength reuse for the radio/fiber uplink connection [PDF]
, 2006 The authors present a novel technology for uplink transmission in radio-over-fiber distribution systems. The technique employs remote downconversion of the uplink data to intermediate frequency (IF) in the base station (BS).
Barry, Liam P. +2 more
core +1 more source
Multifunctional operation of a fiber Bragg grating in a WDM/SCM radio over fiber distribution system [PDF]
, 2004 A radio over fiber distribution system incorporating both sub-carrier multiplexing (SCM) and wavelength division multiplexing (WDM) technologies is presented.
Anandarajah, Prince M. +2 more
core +1 more source
Improved IEEE 802.11 point coordination function considering fiber-delay difference in distributed antenna systems [PDF]
, 2014 In this paper, we present an improved IEEE 802.11 wireless local-area network (WLAN) medium access control (MAC) mechanism for simulcast radio-over-fiber-based distributed antenna systems where multiple remote antenna units (RAUs) are connected to one ...
Dai, Yitang +6 more
core +1 more source
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
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 over Fiber in Radio over Fiber Systems in 5G Scenarios [PDF]
2019 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.
Vazquez, C. +5 more
openaire +1 more source