Performance Analysis of Hybrid FSO Systems Using FSO/RF-FSO Link Adaptation [PDF]
IEEE 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 +6 more sources
The Secrecy Comparison of RF and FSO Eavesdropping Attacks in Mixed RF-FSO Relay Networks
IEEE 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.
Günes Karabulut-Kurt +2 more
exaly +4 more sources
Wireless Energy and Information Transmission in FSO and RF-FSO Links [PDF]
IEEE Wireless Communications Letters, 2018 We propose and analyze a wireless energy and information transmission scheme in free-space optical (FSO) links. The results are presented for both quasi-static and fast-fading conditions. We derive closed-form expressions for throughput, outage probability, and optimal power allocation optimizing the system throughput/outage probability.
Behrooz Makki +2 more
exaly +4 more sources
Quantize and Encode Relaying Through FSO and Hybrid FSO/RF Links
IEEE Transactions on Vehicular Technology, 2015 A relaying scheme that uses both radio frequency (RF) and free space optical (FSO) links is investigated. In the proposed quantize and encode relaying (QER), a mobile source broadcasts the RF signal using quadrature amplitude modulation (QAM). The relay estimates and quantizes the log-likelihood ratio (LLR) of each received bit in the symbol and ...
Deva Borah
exaly +2 more sources
Practical Switching-Based Hybrid FSO/RF Transmission and Its Performance Analysis
IEEE Photonics Journal, 2014 Hybrid free-space optical (FSO)/radio-frequency (RF) systems have emerged as a promising solution for high-data-rate wireless backhaul. We present and analyze a switching-based transmission scheme for the hybrid FSO/RF system.
Hong-Chuan Yang, Mohamed-Slim Alouini
exaly +3 more sources
Effect of Pointing Errors on the Performance of Hybrid FSO/RF Networks
IEEE Access, 2019 The performance of a free space optics (FSO) transmission suffers from the atmospheric turbulence and the attenuation in foggy environment. By employing relay nodes, the error rate and the coverage area of the FSO communication system can be ...
Shubha Sharma, A S Madhukumar
exaly +3 more sources
Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels
Computation, 2019 The hybrid system of free space optic (FSO) and radio frequency (RF) has come forth as alternative good solution for increasing demand for high data rates in wireless communication networks.
George Tombras +2 more
exaly +3 more sources
Multiplicity of solutions for the discrete boundary value problem involving the p-Laplacian [PDF]
Arab 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]
ITM 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]
E3S 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