Aerial Intelligent Reflecting Surface Enabled Terahertz Covert Communications in Beyond-5G Internet of Things

Mamaghani, Milad Tatar; Hong, Yi

doi:10.48550/arxiv.2111.11650

Cited by 3 publications

(4 citation statements)

References 26 publications

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“…a) G2G communications: In this context, the works in [41], [42], and [85]- [87] investigated a novel downlink framework using ARIS to assist high-frequency communications between GBS and GUs. By leveraging the mobility of ARIS and adjusting its position, the direct NLoS links between GBS and users can be replaced by two connected LOS links.…”

Section: B Millimeter Wave/thzmentioning

confidence: 99%

“…a) Existence of jammer: The work in [85] considered the communication between a GBS-GU pair to serve multiple GUs, where at most one user is scheduled at a given slot, while the other GUs act as potential eavesdroppers. Contrary to previous works focusing on securing the transmissions, we were interested in ensuring covert communications whose goal is to ensure the transmissions to be undetectable at the eavesdroppers.…”

Section: F Physical Layer Securitymentioning

confidence: 99%

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Nonterrestrial Communications Assisted by Reconfigurable Intelligent Surfaces

Qiao

Kammoun

et al. 2022

Proc. IEEE

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| Nonterrestrial communications have emerged as a key enabler for seamless connectivity in the upcoming generation networks. This kind of network can support high data rate communications among aerial platforms (i.e., unmanned aerial vehicles (UAVs), high-altitude platforms (HAPs), and satellites) and cellular networks, achieving anywhere and anytime connections. However, there are many practical implementation limitations, especially overload power consumption, high probability of blockage, and dynamic propagation environment. Fortunately, the recent technology reconfigurable intelligent surface (RIS) is expected to be one of the most cost-efficient solutions to address such issues. RIS with low-cost elements can bypass blockages and create multiple line-of-sight (LoS) links and provide controllable communication channels. In this article, we present a comprehensive literature review on the RIS-assisted nonterrestrial networks (RANTNs). First, the framework of the RANTNs is introduced with detailed discussion about distinct properties of RIS in NTNs and the two Manuscript

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Section: B Millimeter Wave/thzmentioning

confidence: 99%

Section: F Physical Layer Securitymentioning

confidence: 99%

Nonterrestrial Communications Assisted by Reconfigurable Intelligent Surfaces

Qiao

Kammoun

et al. 2022

Proc. IEEE

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“…In [19], the authors investigated AIRS to support ultra-reliable low latency (URLLC) communication to tackle the interference caused by the dense network. An AIRS communication system over Terahertz (THz) bands for confidential data dissemination from an access point (AP) towards multiple ground user equipments (UEs) on the internet-of-things (IoT) networks was investigated in [20]. In order to analyze the performance of AIRS under high-altitude, a wireless architecture mounted on a high-altitude aerial platform enabled by AIRS was investigated in [21].…”

Section: Introductionmentioning

confidence: 99%

Aerial Intelligent Reflecting Surfaces in MIMO-NOMA Networks: Fundamentals, Potential Achievements, and Challenges

Lima

Sena

Dinis

et al. 2022

IEEE Open J. Commun. Soc.

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Non-orthogonal multiple access (NOMA) technique and unmanned aerial vehicles (UAVs) have been recognized as promising technologies for enabling the stringent requirements of the different network infrastructures expected for the next generation of wireless networks. In parallel, intelligent reconfigurable surfaces (IRSs) have been widely pointed out as an auspicious solution to further improve spectral efficiency, coverage range, and connectivity. By integrating IRS with UAV and NOMA schemes with multiple-input multiple-output (MIMO) it is possible to smartly improve the overall network performance. In order to explore some of these potentials, this paper provides a comprehensive discussion about the interplay of aerial IRS in MIMO-NOMA (AIRS-NOMA) networks, as well its architecture, functionality principles, and performance gains. In particular, attractive gains related to the data rate maximization, user fairness, energy efficiency, and coverage range are highlighted. Simulation results are provided to support our insightful discussions, in which it is revealed that the performance gains of AIRS-NOMA networks are superior when compared to terrestrial deployment. In addition, to guide new studies perspectives, it is addressed some issues and research opportunities associated with this potential integration.

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“…They have also presented an analytical criterion for determining the most energy-efficient height and mode. In [12], the authors propose a THz-band IRS communication system mounted on a UAV for distributing data from an access point to multiple ground users in IoT networks. They formulate an optimization problem in terms of the minimum average energy efficiency to improve communication while minimizing network power usage.…”

Section: Introductionmentioning

confidence: 99%

Mobile-IRS Assisted Next Generation UAV Communication Networks

Shakhatreh¹,

Sawalmeh²,

Alenezi³

et al. 2022

Preprint

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Prior research on intelligent reflection surface (IRS)assisted unmanned aerial vehicle (UAV) communications has focused on a fixed location for the IRS or mounted on a UAV.The assumption that the IRS is located at a fixed position will prohibit mobile users from maximizing many wireless network benefits, such as data rate and coverage. Furthermore, assuming that the IRS is placed on a UAV is impractical for various reasons, including the IRS's weight and size and the speed of wind in severe weather. Unlike previous studies, this study assumes a single UAV and an IRS mounted on a mobile ground vehicle (M-IRS) to be deployed in an Internet-of-Things (IoT) 6G wireless network to maximize the average data rate. Such a methodology for providing wireless coverage using an M-IRS assisted UAV system is expected in smart cities. In this paper, we formulate an optimization problem to find an efficient trajectory for the UAV, an efficient path for the M-IRS, and users' power allocation coefficients that maximize the average data rate for mobile ground users. Due to its intractability, we propose efficient techniques that can help in finding the solution to the optimization problem. First, we show that our dynamic power allocation technique outperforms the fixed power allocation technique in terms of network average sum rate. Then we employ the individual movement model (Random Waypoint Model) in order to represent the users' movements inside the coverage area. Finally, we propose an efficient approach using a Genetic Algorithm (GA) for finding an efficient trajectory for the UAV, and an efficient path for the M-IRS to provide wireless connectivity for mobile users during their movement. We demonstrate through simulations that our methodology can enhance the average data rate by 15% on average compared with the static IRS and by 25% on average compared without the IRS system.

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Aerial Intelligent Reflecting Surface Enabled Terahertz Covert Communications in Beyond-5G Internet of Things

Cited by 3 publications

References 26 publications

Nonterrestrial Communications Assisted by Reconfigurable Intelligent Surfaces

Nonterrestrial Communications Assisted by Reconfigurable Intelligent Surfaces

Aerial Intelligent Reflecting Surfaces in MIMO-NOMA Networks: Fundamentals, Potential Achievements, and Challenges

Mobile-IRS Assisted Next Generation UAV Communication Networks

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