Hybrid FSO/RF networks: A review of practical constraints, applications and challenges

SAH Mohsan, MA Khan, H Amjad - Optical Switching and Networking, 2023 - Elsevier
Radio frequency (RF) spectrum is highly occupied and adding further broadband channels
to fulfill the exiting user requirements has become difficult. Optical free-space …

Intelligent reflecting surfaces assisted UAV communications for massive networks: current trends, challenges, and research directions

SAH Mohsan, MA Khan, MH Alsharif, P Uthansakul… - Sensors, 2022 - mdpi.com
An intelligent reflecting surface (IRS) can intelligently configure wavefronts such as
amplitude, frequency, phase, and even polarization through passive reflections and without …

On the design of RIS–UAV relay-assisted hybrid FSO/RF satellite–aerial–ground integrated network

TV Nguyen, HD Le, AT Pham - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Satellite–aerial–ground integrated network (SAGIN) has been widely envisioned as a
promising network architecture for 6G. In the SAGINs, high-altitude platform (HAP)-aided …

A review–unguided optical communications: Developments, technology evolution, and challenges

AAB Raj, P Krishnan, U Darusalam, G Kaddoum… - Electronics, 2023 - mdpi.com
This review paper discusses the complete evolution of free-space optical (FSO)
communication, also known as unguided optical communication (UOC) technologies, all the …

Free space optical communication: An enabling backhaul technology for 6G non-terrestrial networks

M Elamassie, M Uysal - Photonics, 2023 - mdpi.com
The deployment of non-terrestrial networks (NTNs) is envisioned to achieve global coverage
for 6G and beyond. In addition to space nodes, aerial NTN nodes such as high-altitude …

A survey on intelligent-reflecting-surface-assisted UAV communications

KW Park, HM Kim, OS Shin - Energies, 2022 - mdpi.com
Both the unmanned aerial vehicle (UAV) and intelligent reflecting surface (IRS) are attracting
growing attention as enabling technologies for future wireless networks. In particular, IRS …

RIS assisted UAV for weather-dependent satellite terrestrial integrated network with hybrid FSO/RF systems

X Li, Y Li, X Song, L Shao, H Li - IEEE Photonics Journal, 2023 - ieeexplore.ieee.org
In this paper, we investigate the performance of hybrid free-space optical (FSO) and radio
frequency (RF) relay systems in satellite terrestrial integrated network where the effect of …

RIS-aided mixed RF-FSO wireless networks: Secrecy performance analysis with simultaneous eavesdropping

MM Rahman, ASM Badrudduza, NA Sarker… - IEEE …, 2023 - ieeexplore.ieee.org
In order to meet the demands of diverse services within sixth-generation networks across a
range of industries, numerous approaches are being employed to address notable signal …

Performance analysis of optical reflecting surface-assisted optical space shift keying-based MIMO-FSO system

N Vishwakarma, R Swaminathan… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Recently, the use of reconfigurable intelligent surfaces (RIS) has gained popularity and is
emerging as a promising technique to provide improved link reliability and enhanced …

Performance analysis of IRS-assisted multi-link FSO system under pointing errors

T Ishida, CB Naila, H Okada… - IEEE Photonics …, 2024 - ieeexplore.ieee.org
The integration of intelligent reflecting surfaces (IRS) into free-space optical (FSO)
communication systems is considered as a promising and innovative approach to …