Integration of radio over fiber (RoF) with fiber to the home (FTTH) schemes [PDF]
, 2021 Two integrating techniques and topologies for fiber optic network systems such as RoF and FTTH have been studied and presented in this project. Two digital signals with data rate 622Mb/s and 1.25Gb/s are considered as the two service signals to be hybrid.
openaire +1 more source
A Survey on Radio over Fiber (RoF) for Wireless Broadband Access Technologies [PDF]
International Journal of Computer Applications, 2013 this paper presents a survey on RoF for Wireless Broadband Access technology like WiMAX (Fixed and Mobile). RoF is considered to achieve an effective delivery of wireless and baseband signal, and it also reduces the power consumption. In the other hand WiMAX (Worldwide Interoperability for Microwave Access) is recent fast growing broadband access ...
S. Prakasam, R. Karthikeyan
openaire +1 more source
Verification of Applicability of 90 GHz Band Millimeter‐Wave for Obstacle Detection to Railway
IEEJ Transactions on Electrical and Electronic Engineering, Volume 18, Issue 6, Page 960-969, May 2023., 2023 Abstract Obstacles on railway tracks are a factor hindering safe and stable operation. For this reason, obstacle detection systems have been introduced at level crossings, slopes and under platforms. However, they have been introduced only in limited sections for limited applications.
Kazuki Nakamura +8 more
wiley +1 more source
Investigation of Optical Modulators in Optimized Nonlinear Compensated LTE RoF System [PDF]
, 2014 In this paper, we investigate a nonlinear compensation technique with two different architectures using direct modulation (DM) and external modulation (EM) techniques, termed as DM based frequency dithering (DMFD) and EM based frequency dithering (EMFD).
Ghassemlooy, Zabih +3 more
core +1 more source
Mitigation of nonlinearities in analog radio over fiber links using machine learning approach
ICT Express, 2021 Machine learning (ML) techniques are looked upon as an innovative and realistic direction to cope up with nonlinearity issues in fiber optics communication.
Muhammad Usman Hadi
doaj +1 more source
Hybrid Radio over Fiber and Visible Light (RoF-VLC) Communication System [PDF]
37th European Conference and Exposition on Optical Communications, 2011 We experimentally demonstrate the integration of Radio-over-Fiber and Visible Light Communication technologies, into a hybrid system for indoor communication. The system, realized according to IEEE 802.11g standard, works effectively at typical office luminance level.
A. M. Khalid +4 more
openaire +2 more sources
Experimental demonstration of digital predistortion for orthogonal frequency-division multiplexing-radio over fibre links near laser resonance [PDF]
, 2015 Radio over fibre (RoF), an enabling technology for distribution of wireless broadband service signals through analogue optical links, suffers from non-linear distortion. Digital predistortion has been demonstrated as an effective approach to overcome the
Vieira, Luis Carlos, Gomes, Nathan J.
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Statistical Distribution of EVM Measurements for Direct-Modulation Radio-Over-Fiber Links Transporting OFDM Signals [PDF]
, 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
IEEE Photonics Journal, 2016 A hybrid fiber-to-the-home (FTTH) and radio-over-fiber (RoF) transport system is proposed to transmit one wired signal and two wireless signals simultaneously through an optical lightwave.
C. H. Chang +9 more
doaj +1 more source
Nonlinearity and Noise Effects in Multi-level Signal Millimeter-Wave over Fiber Transmission using Single- and Dual-Wavelength Modulation [PDF]
, 2010 We transmit multilevel quadrature amplitude modulation (QAM) data-IEEE 802.16 schemes-at 20 MSps and an orthogonal frequency-division multiplexing (OFDM) 802.11 g signal (54 Mbps) with a 25 GHz millimeter-wave over fiber system, which employs a dual ...
Jeanne James +9 more
core +1 more source