Results 1 to 10 of about 36,566 (236)

Revolutionizing Free-Space Optics: A Survey of Enabling Technologies, Challenges, Trends, and Prospects of Beyond 5G Free-Space Optical (FSO) Communication Systems [PDF]

open access: goldSensors
As the demand for high-speed, low-latency communication continues to grow, free-space optical (FSO) communication has gained prominence as a promising solution for supporting the next generation of wireless networks, especially in the context of the 5G ...
Isiaka A. Alimi, Paulo P. Monteiro
doaj   +4 more sources

Performance Analysis of Hybrid FSO Systems Using FSO/RF-FSO Link Adaptation [PDF]

open access: yesIEEE Photonics Journal, 2018
Free-space optical (FSO) links are considered as cost-effective, noninvasive alternative to fiber optic cables for 5G cellular backhaul networking. For FSO-based backhaul networks, we propose an additional millimeter-wavelength (MMW) radio-frequency (RF)-
Banibrata Bag   +5 more
doaj   +4 more sources

The Secrecy Comparison of RF and FSO Eavesdropping Attacks in Mixed RF-FSO Relay Networks

open access: yesIEEE Photonics Journal, 2022
In this paper, we study the secrecy performance of mixed radio-frequency (RF) - free space optical (FSO) systems by considering both RF and FSO eavesdropper attacks.
Eylem Erdogan   +3 more
doaj   +2 more sources

Multiplicity of solutions for the discrete boundary value problem involving the p-Laplacian [PDF]

open access: yesArab Journal of Mathematical Sciences, 2023
Purpose – The purpose of this paper is the study of existence and multiplicity of solutions for a nonlinear discrete boundary value problems involving the p-laplacian.
Abdelrachid El Amrouss, Omar Hammouti
doaj   +1 more source

A full duplex FSO transmission system using RZ-4PAM downlink signals with 67% duty cycle and AMI uplink signals [PDF]

open access: yesITM Web of Conferences, 2022
To improve the transceiver quality of Free Space Optical (FSO) system and ensure that user access is feasible the network, a high-speed full-duplex 100 meters FSO transmission scheme using 67% duty cycle RZ-4PAM downlink and alternative mark inversion ...
Yu Ni   +13 more
doaj   +1 more source

Flood risk modeling in the watershed of Charâa stream, Province of Berkane (North-Eastern Morocco) [PDF]

open access: yesE3S Web of Conferences, 2021
The knowledge on floods in Morocco is sporadic and scattered between historical writings and natural events following each other in time and space. In this context, the identification of areas likely to be affected by floods is essential for better ...
Afif Hafssa   +4 more
doaj   +1 more source

Comparative BER Analysis of Free Space Optical System Using Wavelength Diversity over Exponentiated Weibull Channel [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2021
Atmospheric turbulence is considered as major threat to Free Space Optical (FSO) communication as it causes irradiance and phase fluctuations of the transmitted signal which degrade the performance of FSO system.
Dhaval Shah   +2 more
doaj   +1 more source

EXAMPLE OF SWITCHING HYBRID FSO/RF SYSTEMS [PDF]

open access: yesActa Electrotechnica et Informatica, 2021
This article addresses the issue of optical communication with Free Space Optics (FSO) and its use. The article deals with the design and construction of a monitoring system designed for the collection and processing of data characterizing the nature of
Renát HALUŠKA, Ľuboš OVSENÍK
doaj   +1 more source

A survey on performance evaluation of artificial intelligence algorithms for improving IoT security systems

open access: yesScientific Reports, 2023
Security is an important field in the Internet of Things (IoT) systems. The IoT and security are topical domains. Because it was obtained 35,077 document results from the Scopus database.
Hind Meziane, Noura Ouerdi
doaj   +1 more source

Modeling the risks of marine submersion on the Saidia coastal- Cap de l'Eau (Northeast Morocco) [PDF]

open access: yesE3S Web of Conferences, 2021
The coastline is an area of ecological and environmental balance between the continent and the sea. The coastline from Saidia to Cap de l'Eau, located on the Mediterranean coast of Morocco, is the subject of this study.
Ramdani Samhane   +4 more
doaj   +1 more source

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