Results 41 to 50 of about 7,602,251 (213)

Resource Allocation for Hybrid RF/FSO Multi-Channel Multi-Radio Wireless Mesh Networks

IEEE Access, 2020
The overwhelming data rates in next generation wireless networks impose a burden on the high-capacity network planning. One promising strategy to meet the demand for high-capacity communications is to augment radio frequency (RF) based multi-channel ...
Yan Zhao, Wenxiao Shi, Hanyang Shi, Wei Liu, Zhuo Wang, Jiadong Zhang   +5 more
doaj   +1 more source

Dual‐Metasurface‐Integrated Fiber Array for Bidirectional Cylindrical‐Vector‐Beam Multiplexed Communication Using Off‐Axis Spatial Manipulation

Laser &Photonics Reviews, EarlyView.
A dual‐layer metasurface is integrated on a fiber‐array facet to realize compact, plug‐and‐play free‐space optical links with cylindrical vector beam (CVB) space‐division multiplexing. An optimized off‐axis collimation layer steers multiple channels, while a Dammann vortex layer performs polarization–topology conversion for bidirectional CVB (de ...
Xipeng Lu, Jinke Li, Jin Tae Kim, Shaoyan Li, Hongliang Li, Duk‐Yong Choi, Sang‐Shin Lee   +6 more
wiley   +1 more source

Modelling System Parameters for Improvised Performance in Free Space Optics (FSO) Networks

International Journal of Electrical and Electronics Research, 2023
Free space optics (FSO) is a remote method for correspondence that send information by means of an optical source. The medium among transmitter and recipient is a free space that has an away from of sight for imparting the sign. Air, vacuum, and space can go about as free space.
K. Sony, Babu K. Rajesh, Ch. Suneetha, N. Venkatesh, Y. Dasaratha Rami Reddy   +4 more
openaire   +1 more source

Biocontrol and plant growth‐promoting potential of Streptomyces strains against fungal pathogens of tomato and wheat for a sustainable agriculture

Pest Management Science, EarlyView.
This study highlights the biocontrol potential of Streptomyces strain Strep_22. In vitro, it inhibits key fungal pathogens by 91.52%. In vivo, it significantly reduces disease incidence in wheat and tomato while enhancing biomass, shoot, and root development, offering a highly promising, sustainable ecological alternative to chemical pesticides ...
Thomas Conte, Maria Grazia Morea, Gaetana Ricciardi, Angelo Pastino, Francesco Lops, Maria Luisa Raimondo, Antonia Carlucci   +6 more
wiley   +1 more source

Performance Analysis of FSO under Turbulent Channel Using OSTBC

مجلة النهرين للعلوم الهندسية, 2018
Free Space Optics (FSO) plays a vital role in modern wireless communications due to its advantages over fiber optics and RF techniques where a transmission of huge bandwidth and access to remote places become possible.
Lwaa Faisal Abdulameer, Hala Fadhil
doaj   +1 more source

Impact of Thermal-Induced Turbulent Distribution Along FSO Link on Transmission of Photonically Generated mmW Signals in the Frequency Range 26–40 GHz

IEEE Photonics Journal, 2020
Microwave photonics is a promising solution to transmit millimeter wave (mmW) signals for the 5th generation (5G) mobile communications as part of a centralized radio access network (C-RAN).
Luis Vallejo, Matej Komanec, Beatriz Ortega, Jan Bohata, Dong-Nhat Nguyen, Stanislav Zvanovec, Vicenc Almenar   +6 more
doaj   +1 more source

Curved Track Analysis of FSO Link for Ground-to-Train Communications [PDF]

, 2014
In this work, a free space optical (FSO) link for the ground-to-train (G2T-FSO) communications is proposed. Analytical analysis is carried out for the curved rail tracks.
Poliak, Juraj, Ghassemlooy, Zabih, Paudel, Rupak, R. Paudel, O. Wilfert, Z. Ghassemlooy, E. Leitgeb, Leitgeb, Erich, J. Poliak, Wilfert, Otakar   +9 more
core  

Routing and Downlink Resource Allocation for Multicast Traffic in LEO Satellite Constellations

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT In this work, we optimize unicast and multicast traffic delivery over non‐terrestrial networks (NTNs) to users on the ground through direct satellite downlink (DL). We consider a gateway‐free mesh architecture with low Earth orbit (LEO) satellites interconnected via inter‐satellite links (ISLs), where unicast and multicast services compete for
Federico Lozano‐Cuadra, Israel Leyva‐Mayorga, Jimmy Jessen Nielsen, Beatriz Soret   +3 more
wiley   +1 more source

A Critical Analysis of Optimization Algorithms for Cultural Heritage Conservation and Management

Engineering Reports, Volume 8, Issue 10, October 2026.
Methodological framework and decision‐support roadmap for optimization algorithms in cultural heritage conservation and management. ABSTRACT Heritage buildings symbolize cultural identity, architectural character, and historical epitome of communities.
Eslam Mohammed Abdelkader, Abobakr Al‐Sakkaf, Moaaz Elkabalawy, Kyrillos Ebrahim, Haytham Elmousalami, Mohammed Algamati, Ghasan Alfalah   +6 more
wiley   +1 more source

Modeling of optical wave propagation through turbulent atmosphere using fractional approach for FSO wireless communication

Journal of Physics Communications, 2023
Free space optical (FSO) wireless communication has emerged as a viable alternative to the existing fiber optics and radio frequency (RF) communications due to its ability to operate in unlicensed spectrum, offering huge data handling capacities and ...
Abdullah Nafis Khan, Muhammad Zubair, Usman Younis   +2 more
doaj   +1 more source