Results 51 to 60 of about 33,221 (289)

Demonstration of 256 QAM 10 Gbps Signal Transmission over 570 km Fiber-based NG Radio over Fiber System [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
The rapid development of the Fifth Generation (5G) networks encourages researchers to improve the Radio over Fiber (RoF) technique to achieve data rates of 10 Gbps and beyond.
Hasan k. Al Deen, Haider J. Abd
doaj   +1 more source

Neural Network DPD for Aggrandizing SM-VCSEL-SSMF-Based Radio over Fiber Link Performance

Photonics, 2021
This paper demonstrates an unprecedented novel neural network (NN)-based digital predistortion (DPD) solution to overcome the signal impairments and nonlinearities in Analog Optical fronthauls using radio over fiber (RoF) systems.
Muhammad Usman Hadi, Muhammad Awais, Mohsin Raza, Kiran Khurshid, Hyun Jung   +4 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

A Machine Learning Aided Reference-Tone-Based Phase Noise Correction Framework for Fiber-Wireless Systems

IEEE Transactions on Machine Learning in Communications and Networking
In recent years, the research involving the use of machine learning in the field of communication networks have shown promising results, in particular, improving receiver sensitivity against noise and link impairment.
Guo Hao Thng, Said Mikki
doaj   +1 more source

Performance Limits of Direct Wideband Coherent 3D Localization in Distributed Massive MIMO Systems

Sensors, 2021
We address the accuracy of wideband direct position estimation of a radio transmitter via a distributed antenna array in 5G cellular systems. Our derivations are based only on the presence of spatially coherent line-of-sight (LoS) signal components ...
Nenad Vukmirović, Miljko Erić, Petar M. Djurić   +2 more
doaj   +1 more source

Intelligent Analog Radio Over Fiber aided C-RAN for Mitigating Nonlinearity and Improving Robustness

2022 IEEE Symposium on Computers and Communications (ISCC), 2022
As a low-cost solution for the 5G communication system, centralised radio access network (C-RAN) has been implemented in the ultra-dense environment, where radio over fiber (RoF) technology can enable reduced operational cost as well as coordinated multi-point (CoMP) despite its less robustness and reduced system performance. On the other hand, machine
Li, Yichuan, El-Hajjar, Mohammed
openaire   +2 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

High-Speed Wireless Access in Forested Rural Areas Using Analog Radio-over-Fiber Technology [PDF]

Latin America Optics and Photonics Conference, 2018
A low complexity Ka-band hybrid photonic-wireless link based on a commercial SFP+ module is demonstrated, offering an economical and efficient solution for access provisioning to rural areas. A rain forest environment is emulated and low BER is achieved.
Konstantinou, Dimitrios, Morales, Alvaro, Aghmari, Imane, Rommel, Simon, Raddo, Thiago R., Johannsen, Ulf, Monroy, Idelfonso Tafur   +6 more
openaire   +2 more sources

The Murchison Widefield Array: Design Overview [PDF]

, 2009
The Murchison Widefield Array (MWA) is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a wide range of science investigations, but is initially focused on three key science ...
Benkevitch, Leonid, Bowman, Judd D., Briggs, Frank H., Bunton, John D., Burns, Steven, Cappallo, Roger J., Corey, Brian E., Derome, Mark, Deshpande, Avinash, deSouza, Ludi, Doeleman, Sheperd S., Gopalakrishna, M. R., Greenhill, Lincoln J., Herne, David, Hewitt, Jacqueline N., Kamini, P. A., Kasper, Justin C., Kincaid, Barton B., Kocz, Jonathan, Kowald, Errol, Kratzenberg, Eric, Kumar, Deepak, Lonsdale, Colin J., Lynch, Mervyn J., Madhavi, S., Matejek, Michael, Mitchell, Daniel, Morales, Miguel F., Morgan, Edward, Oberoi, Divya, Ord, Steven, Pathikulangara, Joseph, Prabu, T., Rogers, Alan E. E., Roshi, Anish, Salah, Joseph E., Sault, Robert J., Shankar, N. Udaya, Srivani, K. S., Stevens, Jamie, Tingay, Steven, Vaccarella, Annino, Waterson, Mark, Wayth, Randall B., Webster, Rachel L., Whitney, Alan R., Williams, Andrew, Williams, Christopher   +47 more
core   +3 more sources