Results 61 to 70 of about 4,319 (225)

High Dimensional Modulation and MIMO Techniques for Access Networks [PDF]

, 2012
Exploration of advanced modulation formats and multiplexing techniques for next generation optical access networks are of interest as promising solutions for delivering multiple services to end-users.
Daud, M. E., Ibrahim, A., Ibrahim, Z., Kamarudin, A. F., Md Noh, M. S., Mohd Anuar, M. A., Mokhatar, S. N.   +6 more
core   +3 more sources

Distributed remote antenna unit with selection‐based of (RoF‐IoT) paradigm: Performance improvement

IET Communications, Volume 19, Issue 1, January/December 2025.
Abstract Mixing the wireless medium with fiber optics can form a new communication system called a radio‐over‐fiber (RoF) network; it is a promising solution that can provide high bandwidth and a reliable connection between numerous sensors in wireless sensor networks (WSN) and the central office (base station) within a particular area.
Shakir Salman Ahmad, Hamed Al‐Raweshidy, Ahmed Alkhayyat   +2 more
wiley   +1 more source

A Cascode Pair Based on SiGe HPT for RoF/LiFi Applications

Electronics Letters, Volume 61, Issue 1, January/December 2025.
In this letter, a Si/SiGe phototransistor fully integrated in an industrial 55‐nm node BiCMOS technology is incorporated in a cascode pair for high‐speed photodetection. After having presented the phototranistor structure, the opto‐microwave performances are discussed and compared with a single stage phototransistor.
Thary Valentin, Algani Catherine, Chevalier Pascal, Polleux Jean‐Luc   +3 more
wiley   +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

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

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

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

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

RoF-based indoor WiMAX transmission system [PDF]

[[abstract]]In this paper, we use the radio-over-fiber (RoF) technology to extend indoor WiMAX coverage. The RoF-based indoor WiMAX experimental platform can be divided into two kinds of basic architectures: point-to-point and point-to-multipoint.
Chuang, Ming-Hsueh
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