STAR-RIS Aided Secure MIMO Communication Systems
This paper investigates simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) aided physical layer security (PLS) in multiple-input multiple-output (MIMO) systems, where the base station (BS) transmits secrecy information with the aid of STAR-RIS against multiple eav...
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| Main Authors | , , , , |
|---|---|
| Format | Journal Article |
| Language | English |
| Published |
01.04.2024
|
| Subjects | |
| Online Access | Get full text |
| DOI | 10.48550/arxiv.2404.01059 |
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| Abstract | This paper investigates simultaneous transmission and reflection
reconfigurable intelligent surface (STAR-RIS) aided physical layer security
(PLS) in multiple-input multiple-output (MIMO) systems, where the base station
(BS) transmits secrecy information with the aid of STAR-RIS against multiple
eavesdroppers equipped with multiple antennas. We aim to maximize the secrecy
rate by jointly optimizing the active beamforming at the BS and passive
beamforming at the STAR-RIS, subject to the hardware constraint for STAR-RIS.
To handle the coupling variables, a minimum mean-square error (MMSE) based
alternating optimization (AO) algorithm is applied. In particular, the
amplitudes and phases of STAR-RIS are divided into two blocks to simplify the
algorithm design. Besides, by applying the Majorization-Minimization (MM)
method, we derive a closed-form expression of the STAR-RIS's phase shifts.
Numerical results show that the proposed scheme significantly outperforms
various benchmark schemes, especially as the number of STAR-RIS elements
increases. |
|---|---|
| AbstractList | This paper investigates simultaneous transmission and reflection
reconfigurable intelligent surface (STAR-RIS) aided physical layer security
(PLS) in multiple-input multiple-output (MIMO) systems, where the base station
(BS) transmits secrecy information with the aid of STAR-RIS against multiple
eavesdroppers equipped with multiple antennas. We aim to maximize the secrecy
rate by jointly optimizing the active beamforming at the BS and passive
beamforming at the STAR-RIS, subject to the hardware constraint for STAR-RIS.
To handle the coupling variables, a minimum mean-square error (MMSE) based
alternating optimization (AO) algorithm is applied. In particular, the
amplitudes and phases of STAR-RIS are divided into two blocks to simplify the
algorithm design. Besides, by applying the Majorization-Minimization (MM)
method, we derive a closed-form expression of the STAR-RIS's phase shifts.
Numerical results show that the proposed scheme significantly outperforms
various benchmark schemes, especially as the number of STAR-RIS elements
increases. |
| Author | Wu, Qingqing Wang, Xinyi Dong, Xiequn Fei, Zesong Hua, Meng |
| Author_xml | – sequence: 1 givenname: Xiequn surname: Dong fullname: Dong, Xiequn – sequence: 2 givenname: Zesong surname: Fei fullname: Fei, Zesong – sequence: 3 givenname: Xinyi surname: Wang fullname: Wang, Xinyi – sequence: 4 givenname: Meng surname: Hua fullname: Hua, Meng – sequence: 5 givenname: Qingqing surname: Wu fullname: Wu, Qingqing |
| BackLink | https://doi.org/10.48550/arXiv.2404.01059$$DView paper in arXiv |
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| Snippet | This paper investigates simultaneous transmission and reflection
reconfigurable intelligent surface (STAR-RIS) aided physical layer security
(PLS) in... |
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| SubjectTerms | Computer Science - Information Theory Mathematics - Information Theory |
| Title | STAR-RIS Aided Secure MIMO Communication Systems |
| URI | https://arxiv.org/abs/2404.01059 |
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