DeepAI AI Chat
Log In Sign Up

Rate-Splitting Multiple Access for Intelligent Reflecting Surface-Aided Secure Transmission

by   Ying Gao, et al.
Shanghai Jiao Tong University

In this letter, we study a rate-splitting multiple access (RSMA)-based intelligent reflecting surface (IRS)-aided multi-user multiple-input single-output (MISO) secure communication system with a potential eavesdropper (Eve). Aiming to maximize the minimum secrecy rate (SR) among all the legitimate users (LUs), a design problem for jointly optimizing the transmit beamforming with artificial noise (AN), the IRS beamforming, and the secrecy common rate allocation is formulated. Since the design problem is highly non-convex with coupled optimization variables, we develop a computationally efficient algorithm based on the alternating optimization (AO) technique to solve it suboptimally. Numerical results demonstrate that the proposed design can significantly improve the max-min SR over the benchmark schemes adopting other multiple access techniques. In particular, employing the RSMA strategy can substantially reduce the required numbers of IRS elements for achieving a target level of secrecy performance compared with the benchmark schemes.


page 1

page 2

page 3

page 4

page 5


Intelligent Reflecting Surface Assisted Secrecy Communication via Joint Beamforming and Jamming

In this letter, we investigate an intelligent reflecting surface (IRS) a...

Secure SWIPT in STAR-RIS Aided Downlink MISO Rate-Splitting Multiple Access Networks

Recently, simultaneously transmitting and reflecting reconfigurable inte...

Alternating Beamforming with Intelligent Reflecting Surface Element Allocation

Intelligent reflecting surface (IRS) has become a promising technology t...

Reconfigurable Intelligent Surfaces Empowered Cooperative Rate Splitting with User Relaying

Cooperative rate splitting (CRS), built upon rate splitting multiple acc...

Secure Two-Way Communications via Intelligent Reflecting Surfaces

In this letter, we propose to exploit an intelligent reflecting surface ...

Robust and Secure Beamforming for Intelligent Reflecting Surface Aided mmWave MISO Systems

In this letter, we investigate the robust and secure beamforming (RSBF) ...

Precoding and Beamforming Design for Intelligent Reconfigurable Surface-Aided Hybrid Secure Spatial Modulation

Intelligent reflecting surface (IRS) is an emerging technology for wirel...