Intelligent Reflecting Surface and UAV Assisted Secrecy Communication in Millimeter-Wave Networks

Sun, Guen; Tao, Xiaofeng; Li, Na; Xu, Jin

doi:10.1109/tvt.2021.3109467

Cited by 48 publications

(44 citation statements)

References 54 publications

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“…Results show that the secrecy rate of the IRS-enabled UAV network is maximized. In [11], the authors consider a mmWave network in which a single UAV BS transmits the message to the desired destination node in the presence of a single eavesdropper. The paper aims to design the position and beamforming of both UAV BS and IRS to maximize the secrecy rate.…”

Section: Recent Advances In Irs Enhanced Pls For Uav Communicationmentioning

confidence: 99%

Opportunities for Physical Layer Security in UAV Communication Enhanced with Intelligent Reflective Surfaces

Khan¹,

Lagunas²,

Ali³

et al. 2022

Preprint

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Unmanned Aerial Vehicles (UAVs) are an important component of next-generation wireless networks that can assist in high data rate communications and provide enhanced coverage.Their high mobility and aerial nature offer deployment flexibility and low-cost infrastructure support to existing cellular networks and provide many applications that rely on mobile wireless communications. However, security is a major challenge in UAV communications, and Physical Layer Security (PLS) is an important technique to improve the reliability and security of data shared with the assistance of UAVs. Recently, Intelligent Reflecting Surfaces (IRS) have emerged as a novel technology to extend and/or enhance wireless coverage by re-configuring the propagation environment of communications. This paper provides an overview of how IRS can improve the PLS of UAV networks. We discuss different use cases of PLS for IRS enhanced UAV communications and briefly review the recent advances in this area. Then based on the recent advances, we also present a case study that utilizes alternate optimization to maximize the secrecy capacity for IRS enhanced UAV scenario in the presence of multiple eavesdroppers. Finally, we highlight several open issues and research challenges to realize PLS in IRS enhanced UAV communications.

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Section: Recent Advances In Irs Enhanced Pls For Uav Communicationmentioning

confidence: 99%

Opportunities for Physical Layer Security in UAV Communication Enhanced with Intelligent Reflective Surfaces

Khan¹,

Lagunas²,

Ali³

et al. 2022

Preprint

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“…Therefore, the distance between the IRS and a certain communication node can be approximated by that between the reference point and the corresponding node. We assume that both UBS-Alice/Eve links and UBS-IRS link contain LOS and non-LOS (NLOS) components, which follow the free-space path loss model [19]. Following [32], we consider that all the channels are formulated as the product of large scale fading and small scale fading, and the small scale fading in the A2G links are assumed to be Rician fading.…”

Section: A A2g Wireless Channel Modelmentioning

confidence: 99%

“…Furthermore, in [18], the secure transmission problem was considered in an UAV and IRS assisted millimeter wave (mmWave) networks in the presence of an eavesdropper. In addition, [19] showed that the use of IRSs can effectively improve the coverage and reliability of mmWave UAV communication systems. In fact, all these results indicate that IRS greatly boosts the UAV transmission performance compared with no IRS case.…”

Section: Introductionmentioning

confidence: 99%

Active Intelligent Reflecting Surface Assisted Secure Air-to-Ground Communication with UAV Jittering

Ge¹,

Fan²

2022

Preprint

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Unmanned Aerial Vehicles (UAV)-enabled communication is a promising solution for secure air-to-ground (A2G) networks due to the additional secure degrees of freedom afforded by mobility. However, the jittering characteristics caused by the random airflow and the body vibration of the UAV itself have a non-negligible impact on the performance of UAV communication. Considering the impact of UAV jittering, this paper propose a robust and secure transmission design assisted by an novel active intelligent reflecting surface (IRS), where the reflecting elements in IRS not only adjust the phase shift but also amplify the amplitude of signals. Specifically, under the worst-case secrecy rate constraints, we aim to minimize the transmission power by the robust joint design of active IRS's reflecting coefficient and beamforming at the UAV-borne base station (UBS). However, it is challenging to solve the joint optimization problem due to its non-convexity. To tackle this problem, the non-convex problem is reformulated with linear approximation for the channel variations and linear matrix inequality transformed by S-procedure and Schur's complement. Then, we decouple this problem into two sub-problems, namely, passive beamforming and active IRS's reflecting coefficient optimization, and solve them through alternate optimization (AO). Finally, the numerical results demonstrate the potential of active IRS on power saving under secure transmission constraints and the impact of UAV jittering.

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“…However, conventional PLS techniques only focus on beamforming design at the transceivers, and may not provide good performance in some scenarios, e.g., when the legitimate user and the eavesdropper have highly correlated channels (e.g., when they are located in the same direction from the transmitter) [19]. Thanks to the capability of reconfiguring the propagation environment as desired, RISs have several applications in the context of PLS for improving the security of wireless communication systems [20]- [23]. For example, the authors of [20] studied the secrecy outage probability of an RIS-assisted single-antenna system where only one eavesdropper exist.…”

mentioning

confidence: 99%

“…In [22], the authors proposed a deep reinforcement learning (DRL)-based scheme to improve the security performance of RIS-assisted MIMO systems. The authors of [23] analyzed the security performance gains when deploying an RIS in unmanned aerial vehicle (UAV)-assisted mmWave wireless communication networks.…”

mentioning

confidence: 99%

Robust Transmission Design for RIS-assisted Secure Multiuser Communication Systems in the Presence of Hardware Impairments

Peng¹,

Weng²,

Pan³

et al. 2022

Preprint

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This paper investigates reconfigurable intelligent surface (RIS)-assisted secure multiuser communication systems subject to hardware impairments (HIs). We jointly optimize the beamforming vectors at the base station (BS) and the phase shifts of the reflecting elements at the RIS so as to maximize the weighted minimum secrecy rate (WMSR), subject to both transmission power constraints at the BS and unit-modulus constraints at the RIS. To address the formulated optimization problem, we first decouple it into two tractable subproblems and then use the block coordinate descent (BCD) method to alternately optimize the subproblems. Two different methods are proposed to solve the two obtained subproblems. The first method transforms each subproblem into a second order cone programming (SOCP) problem, which can be directly solved using CVX. The second method leverages the Minorization-Maximization (MM) algorithm. Specifically, we first derive a concave approximation function, which is a lower bound of the original objective function, and then the two subproblems are transformed into two simple surrogate problems with closedform solutions. Simulation results verify the performance gains of the proposed robust transmission method over existing nonrobust designs. In addition, the MM algorithm is shown to have much lower complexity than the SOCP-based algorithm.Index Terms-Intelligent reflecting surface (IRS), reconfigurable intelligent surface (RIS), hardware impairments (HIs), physical layer security (PLS). I. INTRODUCTIONThanks to the growing popularization of mobile devices, the global wireless network capacity is expected to increase 100fold by 2030 [1]. Furthermore, emerging applications, such as the industrial Internet of things, virtual reality (VR) and augmented reality (AR) [2], have high quality of service (QoS) requirements, such as ultra-low latency, ultra-high reliability and extremely high data rates [3]. Some potential techniques, such as massive multiple-input multiple-output (m-MIMO) arrays, millimeter wave (mmWave) and terahertz (THz) communications [4], have been proposed to meet the above Z. Peng, and R. Weng are with the

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Intelligent Reflecting Surface and UAV Assisted Secrecy Communication in Millimeter-Wave Networks

Cited by 48 publications

References 54 publications

Opportunities for Physical Layer Security in UAV Communication Enhanced with Intelligent Reflective Surfaces

Opportunities for Physical Layer Security in UAV Communication Enhanced with Intelligent Reflective Surfaces

Active Intelligent Reflecting Surface Assisted Secure Air-to-Ground Communication with UAV Jittering

Robust Transmission Design for RIS-assisted Secure Multiuser Communication Systems in the Presence of Hardware Impairments

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