RIS-Assisted Robust Hybrid Beamforming Against Simultaneous Jamming and Eavesdropping Attacks

Wireless communications are increasingly vulnerable to simultaneous jamming and eavesdropping attacks due to the inherent broadcast nature of wireless channels. With this focus, due to the potential of reconfigurable intelligent surface (RIS) in substantially saving power consumption and boosting in...

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Vydáno v:	IEEE transactions on wireless communications Ročník 21; číslo 11; s. 9212 - 9231
Hlavní autoři:	Sun, Yifu, An, Kang, Zhu, Yonggang, Zheng, Gan, Wong, Kai-Kit, Chatzinotas, Symeon, Yin, Haifan, Liu, Pengtao
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York IEEE 01.11.2022 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Algorithms anti-jamming communications Array signal processing Beamforming Cellular communication Closed form solutions Communication system security Complexity Constraints Convexity Eavesdropping Exact solutions hybrid beamforming Jamming Mathematical models Maximum power Optimization physical-layer security Power consumption Quadratic programming Radio frequency Reconfigurable intelligent surface Riemann manifold Robustness (mathematics) Security Wireless communication Wireless communications Wiretapping
ISSN:	1536-1276, 1558-2248
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Abstract	Wireless communications are increasingly vulnerable to simultaneous jamming and eavesdropping attacks due to the inherent broadcast nature of wireless channels. With this focus, due to the potential of reconfigurable intelligent surface (RIS) in substantially saving power consumption and boosting information security, this paper is the first work to investigate the effect of the RIS-assisted wireless transmitter in improving both the spectrum efficiency and the security of multi-user cellular network. Specifically, with the imperfect angular channel state information (CSI), we aim to address the worst-case sum rate maximization problem by jointly designing the receive decoder at the users, both the digital precoder and the artificial noise (AN) at the base station (BS), and the analog precoder at the RIS, while meeting the minimum achievable rate constraint, the maximum wiretap rate requirement, and the maximum power constraint. To address the non-convexity of the formulated problem, we first propose an alternative optimization (AO) method to obtain an efficient solution. In particular, a heuristic scheme is proposed to convert the imperfect angular CSI into a robust one and facilitate the developing a closed-form solution to the receive decoder. Then, after reformulating the original problem into a tractable one by exploiting the majorization-minimization (MM) method, the digital precoder and AN can be addressed by the quadratically constrained quadratic programming (QCQP), and the RIS-aided analog precoder is solved by the proposed price mechanism-based Riemannian manifold optimization (RMO). To further reduce the computational complexity of the proposed AO method and gain more insights, we develop a low-complexity monotonic optimization algorithm combined with the dual method (MO-dual) to identify the closed-form solution. Numerical simulations using realistic RIS and communication models demonstrate the superiority and validity of our proposed schemes over the existing benchmark schemes.
AbstractList	Wireless communications are increasingly vulnerable to simultaneous jamming and eavesdropping attacks due to the inherent broadcast nature of wireless channels. With this focus, due to the potential of reconfigurable intelligent surface (RIS) in substantially saving power consumption and boosting information security, this paper is the first work to investigate the effect of the RIS-assisted wireless transmitter in improving both the spectrum efficiency and the security of multi-user cellular network. Specifically, with the imperfect angular channel state information (CSI), we aim to address the worst-case sum rate maximization problem by jointly designing the receive decoder at the users, both the digital precoder and the artificial noise (AN) at the base station (BS), and the analog precoder at the RIS, while meeting the minimum achievable rate constraint, the maximum wiretap rate requirement, and the maximum power constraint. To address the non-convexity of the formulated problem, we first propose an alternative optimization (AO) method to obtain an efficient solution. In particular, a heuristic scheme is proposed to convert the imperfect angular CSI into a robust one and facilitate the developing a closed-form solution to the receive decoder. Then, after reformulating the original problem into a tractable one by exploiting the majorization-minimization (MM) method, the digital precoder and AN can be addressed by the quadratically constrained quadratic programming (QCQP), and the RIS-aided analog precoder is solved by the proposed price mechanism-based Riemannian manifold optimization (RMO). To further reduce the computational complexity of the proposed AO method and gain more insights, we develop a low-complexity monotonic optimization algorithm combined with the dual method (MO-dual) to identify the closed-form solution. Numerical simulations using realistic RIS and communication models demonstrate the superiority and validity of our proposed schemes over the existing benchmark schemes.
Author	Zheng, Gan An, Kang Sun, Yifu Zhu, Yonggang Chatzinotas, Symeon Liu, Pengtao Wong, Kai-Kit Yin, Haifan
Author_xml	– sequence: 1 givenname: Yifu orcidid: 0000-0003-4924-9387 surname: Sun fullname: Sun, Yifu email: sunyifu.nudt@nudt.edu.cn organization: College of Electronic Science and Technology, National University of Defense Technology, Changsha, China – sequence: 2 givenname: Kang orcidid: 0000-0003-4720-0635 surname: An fullname: An, Kang email: ankang89@nudt.edu.cn organization: Sixty-third Research Institute, National University of Defense Technology, Nanjing, China – sequence: 3 givenname: Yonggang orcidid: 0000-0002-1344-7392 surname: Zhu fullname: Zhu, Yonggang email: zhumaka1982@163.com organization: Sixty-third Research Institute, National University of Defense Technology, Nanjing, China – sequence: 4 givenname: Gan orcidid: 0000-0001-8457-6477 surname: Zheng fullname: Zheng, Gan email: g.zheng@lboro.ac.uk organization: Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, U.K – sequence: 5 givenname: Kai-Kit orcidid: 0000-0001-7521-0078 surname: Wong fullname: Wong, Kai-Kit email: kai-kit.wong@ucl.ac.uk organization: Department of Electronic and Electrical Engineering, University College London, London, U.K – sequence: 6 givenname: Symeon orcidid: 0000-0001-5122-0001 surname: Chatzinotas fullname: Chatzinotas, Symeon email: symeon.chatzinotas@uni.lu organization: Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Esch-sur-Alzette, Luxembourg – sequence: 7 givenname: Haifan orcidid: 0000-0002-5624-8764 surname: Yin fullname: Yin, Haifan email: yin@hust.edu.cn organization: School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, China – sequence: 8 givenname: Pengtao orcidid: 0000-0002-7027-7828 surname: Liu fullname: Liu, Pengtao email: liupengtao15@nudt.edu.cn organization: College of Electronic Science and Technology, National University of Defense Technology, Changsha, China
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SubjectTerms	Algorithms anti-jamming communications Array signal processing Beamforming Cellular communication Closed form solutions Communication system security Complexity Constraints Convexity Eavesdropping Exact solutions hybrid beamforming Jamming Mathematical models Maximum power Optimization physical-layer security Power consumption Quadratic programming Radio frequency Reconfigurable intelligent surface Riemann manifold Robustness (mathematics) Security Wireless communication Wireless communications Wiretapping
Title	RIS-Assisted Robust Hybrid Beamforming Against Simultaneous Jamming and Eavesdropping Attacks
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