Xiao, H;
Hu, X;
Li, A;
Wang, W;
Su, Z;
Wong, KK;
Yang, K;
(2023)
STAR-RIS-Assisted Joint Physical Layer Security and Covert Communications.
In:
2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall).
IEEE: Hong Kong, Hong Kong.
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Abstract
This paper investigates the utilization of simultaneously transmitting and reflecting RIS (STAR-RIS) in supporting joint physical layer security (PLS) and covert communications (CCs) in a multi-antenna millimeter-wave (mmWave) system. Specifically, analytical derivations are performed to obtain the closed-form expression of the warden's minimum detection error probability (DEP) considering the practical assumption. Subsequently, an optimization problem is formulated with the aim of maximizing the average sum of the covert rate and the secure rate while ensuring the covert requirement and quality of service (QoS) for legal users by jointly optimizing the active and passive beamformers. Due to the strong coupling among variables, an iterative algorithm based on the alternating strategy and the semi-definite relaxation (SDR) method is proposed to solve the non-convex optimization problem. Simulation results indicate the superiority of STAR-RIS in simultaneously implementing PLS and CCs.
| Type: | Proceedings paper |
|---|---|
| Title: | STAR-RIS-Assisted Joint Physical Layer Security and Covert Communications |
| Event: | 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall) |
| Dates: | 10 Oct 2023 - 13 Oct 2023 |
| ISBN-13: | 9798350329285 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/VTC2023-Fall60731.2023.10333375 |
| Publisher version: | http://dx.doi.org/10.1109/vtc2023-fall60731.2023.1... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Covert communications, Physical layer security, STAR-RIS, Multi-antenna, mmWave |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10185385 |
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