Results 61 to 70 of about 4,370 (221)

Future broadband access network challenges [PDF]

, 2010
Copyright @ 2010 IEEEThe optical and wireless communication systems convergence will activate the potential capacity of photonic technology for providing the expected growth in interactive video, voice communication and data traffic services that are ...
Abdollahi, SR, Al-Raweshidy, H, Darzi, A, Nilavalan, R   +3 more
core   +1 more source

Sub‐THz Generation Device Based on Optical Difference Frequency Generation Using MgO:LiTaO3${\rm LiTaO}_3$ Rectangular Waveguide

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This letter proposes a sub‐THz generation device based on optical difference‐frequency generation in a periodically poled MgO:LiTaO3 rectangular waveguide. Experimental demonstration verified signal generation at ~100 GHz from an intensity‐modulated optical input using a frequency‐quadrupled two‐tone source.
Ken Paramayudha, Yui Otagaki, Hiroshi Murata   +2 more
wiley   +1 more source

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
Fernando X.N., Gomes N.J., Hekkala A., Hekkala A., Luis Carlos Vieira, Moon H., Nathan Joseph Gomes, Song J.B., Vieira L.C., Vieira L.C., Wake D.   +10 more
core   +1 more source

Guest Editorial: Edge Intelligence for Next Generation Industrial IoT Applications

IET Networks, Volume 14, Issue 1, January/December 2025.
ABSTRACT The transformation of industrial systems through real‐time analytics, autonomous control, and intelligent data acquisition has underscored the pivotal role of Industrial Edge Computing (IEC) in next‐generation Industrial Internet of Things (IIoT) environments.
Varun G. Menon, Mainak Adhikari, Brij Bhooshan Gupta, Abhishek Hazra, Spyridon Mastorakis   +4 more
wiley   +1 more source

Self-Start Multi-Wavelength Laser Source with Tunable Delay-Line Interferometer and Optical Fiber Reflector for Wireless Communication System

Applied Sciences, 2021
The radio-over-fiber (RoF) technique has gained a lot of interest recently, as the millimeter-wave signals can be generated and delivered in the optical domain with the advantages of low attenuation, high capacity, and being free from electromagnetic ...
Amare-Mulatie Dehnaw, Run-Kai Shiu, Ruei-Bin Chen, Jyun-Wei Li, Yibeltal-Chanie Manie, Hsing-Chih Liang, Peng-Chun Peng   +6 more
doaj   +1 more source

Transmission Quality Measurement of Two Types of 60 GHz Millimeter-Wave Generation and Distribution Systems [PDF]

, 2009
International audienceIn this paper, we demonstrate and compare experimentally two techniques achieving very high-data-rates (> 1 Gb/s) wireless transmission in the 60 GHz window using radio over fiber (RoF) for reach extension.
Blache, Fabrice, Charbonnier, Benoit, Enard, Alain, Goix, Michel, Lecoche, Frédéric, Li, Hong Wu, Mallecot, Franck, Tanguy, Eric, Van Dijk, Frederic   +8 more
core   +2 more sources

Performance Optimization of SNR and SFDR in RoF Link for the Next Generation Networks

The Journal of Engineering, Volume 2025, Issue 1, January/December 2025.
Figure 1 showing the fundamental concept of RoF link designing over a dispersive medium. The complete RoF link is divided into three different sections. These sections are nominated as, central station (CS), optical distribution networks (ODN) and base station (BS). CS to BS conversation is called downlink transmission, while from BS to CS it is called
Balram Tamrakar, Varun Gupta, Shubham Shukla, Maaz Mahmood Siddique, Anurag Sinha, Md. Sazid Reza, Prachi Mishra, Radhika Gupta, Karan, Himanshu Singh, Ahmed Alkhayyat   +10 more
wiley   +1 more source

All-Optical Generation of Two IEEE802.11n Signals for 2 $\times$ 2 MIMO-RoF via MRR System

IEEE Photonics Journal, 2014
A radio-over-fiber system capable of very spectrally efficient data transmission and based on multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) is presented here.
I. S. Amiri, S. E. Alavi, N. Fisal, A. S. M. Supa'at, H. Ahmad   +4 more
doaj   +1 more source

Comparison between analog radio-over-fiber and sigma delta modulated radio-over-fiber [PDF]

, 2017
With the continuously increasing demand of cost effective, broadband wireless access, radio-over-fiber (RoF) starts to gain more and more momentum. Various techniques already exist, using analog (ARoF) or digitized (DRoF) radio signals over fiber; each ...
Bauwelinck, Johan, Breyne, Laurens, Demeester, Piet, Torfs, Guy, Yin, Xin   +4 more
core   +1 more source

Frequency Comb Effect on Chaos in Semiconductor Lasers, a Bifurcation Study

International Journal of Optics, Volume 2025, Issue 1, 2025.
This study investigates the effects of optical frequency comb injection on the chaotic dynamics of semiconductor lasers through a bifurcation analysis. By examining the behavior of semiconductor lasers under different comb parameters (i.e., the number of signals, comb spacing), the research explores how these factors influence the system’s transition ...
Najm M. Al-Hosiny, Haochong Huang
wiley   +1 more source