THz-enabled UAV communications: Motivations, results, applications, challenges, and future considerations

Amodu, Oluwatosin Ahmed; Jarray, Chedia; Busari, Sherif Adeshina; Othman, Mohamed

doi:10.1016/j.adhoc.2022.103073

Cited by 19 publications

(9 citation statements)

References 27 publications

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“…The literature is replete with numerous practical applications that draw parallels to cascaded systems or, equivalently, the product of random variables. Noteworthy examples can be found in the domains of multihop THz links [16], reconfigurable intelligent surfaces (RIS) [17], and drone communication [18], all of which demonstrate the relevance and versatility of our approach. In the mentioned channels, takes values according to the structure in (5) for j = 1 : p+1 and j = 1 : q + 1.…”

Section: Cascaded H-fading With Beam Misalignment Channelsmentioning

confidence: 98%

A Unified Analysis of Fox H-Fading With Beam Misalignment: Theory and Applications

Silva,

Queiroz,

Figueiredo

et al. 2023

IEEE Open J. Veh. Technol.

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This paper presents a unified analysis of the Fox H-fading channel with beam misalignment. A statistical framework is introduced that includes new expressions for the probability density function, cumulative distribution function, higher-order moments of the envelope/instantaneous signal-to-noise ratio (SNR), and moment generating function of the instantaneous SNR. The analysis also derives expressions for important metrics such as the bit error probability, outage probability, and ergodic channel capacity, as well as an asymptotic analysis of these metrics. Moreover, this work investigates several special cases and provides a detailed examination of the relationship between the Nakagami-m, α-F, and extended generalized-K fading models and the Fox H-fading distribution. As a result, this analysis facilitates an understanding of how existing work in the literature can be obtained as particular cases of this study. Furthermore, Monte Carlo simulations are conducted to corroborate several curves for different values that characterize the channel and beam misalignment parameters. This presentation helps to extend our understanding of the behavior of the Fox H-fading channel under beam misalignment, which has potential applications in wireless communications and other fields.INDEX TERMS Fox H-fading distribution, beam misalignment, unified analysis.

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Section: Cascaded H-fading With Beam Misalignment Channelsmentioning

confidence: 98%

A Unified Analysis of Fox H-Fading With Beam Misalignment: Theory and Applications

Silva,

Queiroz,

Figueiredo

et al. 2023

IEEE Open J. Veh. Technol.

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“…Developing transceivers capable of operating efficiently at THz frequencies involves intricate design and engineering challenges. These transceivers must handle high data rates, maintain signal integrity, and operate within the limited size and weight constraints of UAVs [22].…”

Section: Challenges In Integrating Thz With Uav Platformsmentioning

confidence: 99%

“…THz signals are highly susceptible to blockages from physical objects such as buildings, trees, and even atmospheric particles. These obstructions can significantly degrade signal quality and limit the effective range and reliability of THz communication systems [22].…”

Section: Challenges In Integrating Thz With Uav Platformsmentioning

confidence: 99%

Unmanned Aerial Vehicle-Assisted Terahertz–Visible Light Communication Systems: An In-Depth Performance Analysis

Rajahrajasingh,

Jayakody

2024

Sensors

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This paper investigates the performance of dual-hop unmanned aerial vehicle (UAV)-assisted communication channels, employing a decode-and-forward (DF) relay architecture. The system leverages terahertz (THz) communication for the primary hop and visible light communication (VLC) for the secondary hop. We conduct an in-depth analysis by deriving closed-form expressions for the end-to-end (E2E) bit error rate (BER). Additionally, we use a Monte Carlo simulation approach to generate best-fitting curves, validating our analytical expressions. A performance evaluation through BER and outage probability metrics demonstrates the effectiveness of the proposed system. Specifically, our results indicate that the proposed system outperforms Free-Space Optics (FSO)-VLC and Radio-Frequency (RF)-VLC at a higher signal-to-noise ratio (SNR). The results of this study provide valuable insights into the feasibility and limitations of UAV-assisted THz-VLC communication systems.

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“…UAVs can strongly benefit from sensing and positioning capabilities offered by 6G systems in unlicensed bands at THz. The ultra-high throughput and enhanced sensing capabilities provided by THz communication may offer several opportunities [3], [4], opening the door for new services, such as advanced swarms of UAVs, where UAVs may need to exchange large amount of data to handle an increasing number of sensors to provide integrated sensing, localization, and mapping. However, THz technology is not yet mature enough to be commercially viable.…”

Section: Introductionmentioning

confidence: 99%

Graphene Devices for Aerial Wireless Communications at THz

Mura,

Cassioli,

Shundalau

et al. 2024

J. Phys.: Conf. Ser.

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This paper investigates the state-of-the-art of graphene-based technologies for the prospective use cases of end-to-end terahertz (THz) communication systems, such as industrial Internet of Things (IoT) applications and unmanned aerial vehicles (UAVs). THz communications offer ultra-high throughput and enhanced sensing capabilities, enabling advanced applications like UAV swarms and integrated sensing, localization, and mapping. The potential of wireless THz communication can be unlocked by graphene technology. Graphene, owing to its remarkable electrical, thermal, and mechanical properties, emerges as a promising candidate for a multitude of applications in aerial wireless communications in the THz band, including high-speed electronic devices, tunable metamaterials, and innovative antennas. However, reliable tools for the simulation-based design of graphene components, able to account for the fabrication-related uncertainties, are still missing. This paper presents the envisaged possibilities of wireless communications in THz bands, overviews graphene devices for RF applications at THz, and discusses the open issues of modelling THz devices and THz channel.

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THz-enabled UAV communications: Motivations, results, applications, challenges, and future considerations

Cited by 19 publications

References 27 publications

A Unified Analysis of Fox H-Fading With Beam Misalignment: Theory and Applications

A Unified Analysis of Fox H-Fading With Beam Misalignment: Theory and Applications

Unmanned Aerial Vehicle-Assisted Terahertz–Visible Light Communication Systems: An In-Depth Performance Analysis

Graphene Devices for Aerial Wireless Communications at THz

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