Results 1 to 10 of about 3,678 (136)

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

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)-
Ales Prokes   +2 more
exaly   +3 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

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

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

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

Least energy sign-changing solutions for a nonlocal anisotropic Kirchhoff type equation

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this paper, we investigate the existence of sign-changing solutions for the following class of fractional Kirchhoff type equations with potential (1+b[u]α2)((-Δx)αu-Δyu)+V(x,y)u=f(x,y,u),(x,y)∈ℝN=ℝn×ℝm,\left( {1 + b\left[ u \right]_\alpha ^2} \right ...
Rahmani Mohammed   +3 more
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

Flood Hazard Mapping in Rural Area: Case of Ephemeral Watercourses in SidiBoulenouar Zone [PDF]

open access: yesE3S Web of Conferences, 2021
The eastern region of Morocco is characterized by an arid to semi-arid climate. It is often confronted with heavy rainfall episodes that can generate floods that can cause adverse human and property damage.
Amar Imane   +3 more
doaj   +1 more source

Improved performance of hybrid optical communications system

open access: yesAl-Qadisiyah Journal for Engineering Science, 2021
Frees Space Optical (FSO) system employs space to transfer information between the transmitter and receiver using light. However, the single-beam Single Input Single Output (SISO) technology is well known for being subject to air attenuation induced by ...
Hassan Hamed Naji
doaj   +1 more source

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