Secrecy Performance Analysis of UAV-Assisted Relaying Communication Systems

Bao, Tingnan; Yang, Hong-Chuan; Hasna, Mazen O.

doi:10.1109/tvt.2019.2952525

Cited by 41 publications

(24 citation statements)

References 17 publications

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“…A closed‐form SOP expression for the air‐to‐ground and air‐to‐air link is derived considering the ED to be randomly distributed. In Reference 170, the closed‐form approximation of the intercept probability and the ergodic SR for a UAV‐assisted relaying system with single ED in urban environments is derived. The secrecy performance of the ground link in the presence of randomly deployed non‐colluding unmanned EDs is investigated in Reference 171.…”

Section: Pls Classificationsmentioning

confidence: 99%

A comprehensive survey of physical layer security over fading channels: Classifications, applications, and challenges

Yadav

Kumar²,

Kumar

2021

Trans Emerging Tel Tech

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Due to the open nature of wireless communication systems, the data transmission over these networks are vulnerable to malicious attack. To safeguard the transmitted data, physical layer security (PLS) has been emerged as a promising technique because of its unique feature of utilizing randomness of the wireless channel to secure the information. The preeminent idea of utilizing the channel imperfections such as fading and noise into the security providing resource is the basic approach behind PLS. For exploiting the randomness of the propagation medium, the analysis of the secrecy performance over the fading channel is of utmost importance. With the explanation of basic theory and technology, this paper presents an elaborated survey on the PLS research over the fading channels. To exploit the performance gains, we discuss the optimization approaches in different network design problems, for example, secrecy rate maximization, power minimization, and secure energy efficiency problems. We present a comparative study of the expressions of various performance metrics of the PLS along with classification depending upon the channel state information of the eavesdropper. The application and challenges of the PLS in the emerging wireless technologies are also reviewed and discussed. This paper incorporates almost all the aspects of PLS implemented over the fading channels. Furthermore, the paper is concluded with open research directions for the PLS system in various fields that can be explored to design a flexible and robust security system to satisfy the security requirements of the next‐generation networks.

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Section: Pls Classificationsmentioning

confidence: 99%

A comprehensive survey of physical layer security over fading channels: Classifications, applications, and challenges

Yadav

Kumar²,

Kumar

2021

Trans Emerging Tel Tech

View full text Add to dashboard Cite

show abstract

“…It should be emphasized, that for more practical consideration, a UAV in general cannot be perfectly statically deployed. UAV hovering may cause shadowing effect [34], and inevitable UAV jitter may introduce new randomness to the channel [35]. These effects will be specifically highlighted when we introduce the A2G channels in Subsection II.B.…”

Section: Preliminariesmentioning

confidence: 99%

“…where R s is the achievable SR defined in (11), and R th is the target SR threshold. Some variant forms of the outage probability has been discussed, e.g., the hybrid outage probability (HOP) which jointly considers the outage occurred in the main link and the outage induced by eavesdropping [48], the intercept probability (IP) which describes the probability that the SNR of the legitimate link is less than that of the eavesdropping link [34], and the secrecy connection probability (SCP) which describes the probability of non-zero secrecy capacity [54]. In practice, outage analysis is usually followed by artificial noise (AN)aided jamming design, which has been shown to be a practical solution for secure transmission when explicit CSI is unknown.…”

Section: Pls Scenarios and Secrecy Performance Metricsmentioning

confidence: 99%

“…In this case, the position of UAV and the relaying/jamming strategy should be jointly considered. For UAV relaying, a basic four-node model was discussed in [34], where a decode-and-forward (DF) UAV relay is deployed to aid the communication between a ground BS and Bob, in the presence of a ground Eve. Analytical expressions of the intercept probability and ESR were derived, and accordingly, the impact of the UAV altitude/power on the secrecy performance was discussed via numerical simulations.…”

Section: B Fixed Uav Positionmentioning

confidence: 99%

See 1 more Smart Citation

Physical Layer Security for UAV Communications in 5G and Beyond Networks

Wang,

Gao

et al. 2021

Preprint

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Due to its high mobility and flexible deployment, unmanned aerial vehicle (UAV) is drawing unprecedented interest in both military and civil applications to enable agile wireless communications and provide ubiquitous connectivity. Mainly operating in an open environment, UAV communications can benefit from dominant line-of-sight links; however, it on the other hand renders the UAVs more vulnerable to malicious eavesdropping or jamming attacks. Recently, physical layer security (PLS), which exploits the inherent randomness of the wireless channels for secure communications, has been introduced to UAV systems as an important complement to the conventional cryptographybased approaches. In this paper, a comprehensive survey on the current achievements of the UAV-aided wireless communications is conducted from the PLS perspective. We first introduce the basic concepts of UAV communications including the typical static/mobile deployment scenarios, the unique characteristics of air-to-ground channels, as well as various roles that a UAV may act when PLS is concerned. Then, we introduce the widely used secrecy performance metrics and start by reviewing the secrecy performance analysis and enhancing techniques for statically deployed UAV systems, and extend the discussion to a more general scenario where the UAVs' mobility is further exploited. For both cases, respectively, we summarize the commonly adopted methodologies in the corresponding analysis and design, then describe important works in the literature in detail. Finally, potential research directions and challenges are discussed to provide an outlook for future works in the area of UAV-PLS in 5G and beyond networks.

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“…This probabilistic method can characterize the likelihood of a wireless network achieving a secrecy rate by considering the channel randomness [18]. For example, the closed-form approximation of the intercept probability of a UAV-assisted relaying communication system was studied in [19], [20], while the exact expression of the secrecy outage probability (SOP) between the ground device and UAV has been investigated in [21], [22]. The trajectories and transmit power of the UAV communication systems with the aid of a UAV jammer were optimized in [23] to maximize the minimum average secrecy rate over all the users and an alternating iterative algorithm utilized the successive convex approximation technique was proposed.…”

Section: Introductionmentioning

confidence: 99%