Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systems

UAV-based Hybrid FSO/RF Communication Networks (UHCNs) enable wireless networks with dynamic coverage and adaptability by combining Free Space Optics (FSO), Radio Frequency (RF), and Unmanned Aerial Vehicle (UAV) technologies, making them crucial for 6G. With significant emergence and applications o...

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Main Authors: Kamran Ali Memon, Khalid H. Mohammadani, Abdul Ghaffar, Khurrum Karim Qureshi, Muhammad Mahmood Ali
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Results in Engineering
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590123025019383
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author Kamran Ali Memon
Khalid H. Mohammadani
Abdul Ghaffar
Khurrum Karim Qureshi
Muhammad Mahmood Ali
author_facet Kamran Ali Memon
Khalid H. Mohammadani
Abdul Ghaffar
Khurrum Karim Qureshi
Muhammad Mahmood Ali
author_sort Kamran Ali Memon
collection DOAJ
description UAV-based Hybrid FSO/RF Communication Networks (UHCNs) enable wireless networks with dynamic coverage and adaptability by combining Free Space Optics (FSO), Radio Frequency (RF), and Unmanned Aerial Vehicle (UAV) technologies, making them crucial for 6G. With significant emergence and applications over the last decade, these networks face multifaceted challenges like switching mechanisms, security concerns, resource management, power and energy efficiency, which have encouraged the scientific community to produce a substantial volume of new findings/literature. However, existing literature lacks a quantitative assessment of research progress and emerging trends in UHCNs. This study utilized scientometric analysis to analyze and visualize five years of Web of Science (WoS) data. The analysis included co-citation, co-authorship, and co-occurrence networks to present the latest research trends and cutting-edge investigations in UHCNs. Knowledge clusters were systematically categorized, and key clusters in knowledge mapping were identified. The study employed several types of analysis. These included structural, visual, and temporal analysis based on citation frequency to trace the origins of UHCN research, its evolution, and its current state. It identified key works that significantly contributed to its development and emerging trends. The analysis encompassed 298 critical articles, 299 leading core authors, and 291 cited authors, spanned 08 knowledge domains/hotspots, highlighted 294 trending frontier keywords, and involved contributors from 63 countries, 300 research institutions, and 295 publishing journals. New research trends emphasize the need to design RIS-UAVs that use less energy, have open testbeds to test them in the real world, and standards for deploying autonomous UAVs safely and ethically. This study aims to facilitate interdisciplinary and multidisciplinary research and draw a significant audience from the academic and industrial communities involved in UHCN research.
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spelling doaj-art-03ba9e3fe97249f8aeddad848eb9044b2025-08-20T03:28:24ZengElsevierResults in Engineering2590-12302025-09-012710586710.1016/j.rineng.2025.105867Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systemsKamran Ali Memon0Khalid H. Mohammadani1Abdul Ghaffar2Khurrum Karim Qureshi3Muhammad Mahmood Ali4Interdisciplinary Research Center for Communication Systems and Sensing, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 34464, Saudi Arabia; Corresponding authors.Electro-Optical Communication (ECO) group, Department of Electrical Engineering, Eindhoven University of Technology (TU/e), Eindhoven, 5612AE, NetherlandsKey Laboratory of Air-Driven Equipment Technology of Zhejiang, College of Mechanical Engineering, Quzhou University, Quzhou 31261, ChinaInterdisciplinary Research Center for Communication Systems and Sensing, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 34464, Saudi Arabia; Optical Communications and Sensors Laboratory (OCSL) and Department of Electrical Engineering, KFUPM, Dhahran 34464, Saudi ArabiaCentre for Mathematical Modelling and Intelligent Systems for Health and Environment (MISHE) and Department of Mechatronic Engineering, Atlantic Technological University Sligo, Ash Lane, Sligo F91 YW50, Ireland; Corresponding authors.UAV-based Hybrid FSO/RF Communication Networks (UHCNs) enable wireless networks with dynamic coverage and adaptability by combining Free Space Optics (FSO), Radio Frequency (RF), and Unmanned Aerial Vehicle (UAV) technologies, making them crucial for 6G. With significant emergence and applications over the last decade, these networks face multifaceted challenges like switching mechanisms, security concerns, resource management, power and energy efficiency, which have encouraged the scientific community to produce a substantial volume of new findings/literature. However, existing literature lacks a quantitative assessment of research progress and emerging trends in UHCNs. This study utilized scientometric analysis to analyze and visualize five years of Web of Science (WoS) data. The analysis included co-citation, co-authorship, and co-occurrence networks to present the latest research trends and cutting-edge investigations in UHCNs. Knowledge clusters were systematically categorized, and key clusters in knowledge mapping were identified. The study employed several types of analysis. These included structural, visual, and temporal analysis based on citation frequency to trace the origins of UHCN research, its evolution, and its current state. It identified key works that significantly contributed to its development and emerging trends. The analysis encompassed 298 critical articles, 299 leading core authors, and 291 cited authors, spanned 08 knowledge domains/hotspots, highlighted 294 trending frontier keywords, and involved contributors from 63 countries, 300 research institutions, and 295 publishing journals. New research trends emphasize the need to design RIS-UAVs that use less energy, have open testbeds to test them in the real world, and standards for deploying autonomous UAVs safely and ethically. This study aims to facilitate interdisciplinary and multidisciplinary research and draw a significant audience from the academic and industrial communities involved in UHCN research.http://www.sciencedirect.com/science/article/pii/S2590123025019383RFFSOUAVsWireless power transferRISCitation frequency
spellingShingle Kamran Ali Memon
Khalid H. Mohammadani
Abdul Ghaffar
Khurrum Karim Qureshi
Muhammad Mahmood Ali
Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systems
Results in Engineering
RF
FSO
UAVs
Wireless power transfer
RIS
Citation frequency
title Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systems
title_full Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systems
title_fullStr Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systems
title_full_unstemmed Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systems
title_short Knowledge mapping and trend identification in UAV-enabled hybrid FSO/RF communication systems
title_sort knowledge mapping and trend identification in uav enabled hybrid fso rf communication systems
topic RF
FSO
UAVs
Wireless power transfer
RIS
Citation frequency
url http://www.sciencedirect.com/science/article/pii/S2590123025019383
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