TY - GEN
T1 - Joint Beamforming Design for Secure Transmission in STAR-RIS Aided ISAC
AU - Wei, Wenjing
AU - Pang, Xiaowei
AU - Xing, Chengwen
AU - Zhao, Nan
AU - Niyato, Dusit
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - In this paper, we investigate a secure transmission problem in a simultaneously transmitting and reflecting re-configurable intelligent surface (STAR-RIS) assisted integrated sensing and communication (ISAC) system. The STAR-RIS is exploited to establish line-of-sight links for sensing the target and transmitting the confidential signal to users via non-orthogonal multiple access. Specifically, the sum secrecy rate is maximized by jointly optimizing the transmit beamforming, artificial jamming and STAR-RIS's passive transmission and reflection beamformings, while ensuring the minimum beam-pattern gain required by the target is met. To deal with the non-convex problem, we divide it into two subproblems and leverage successive convex approximation to transform them into convex ones. Then, an alternating optimization algorithm is proposed to solve the problem iteratively. Simulation results demonstrate the effectiveness of the proposed scheme and the potential of STAR-RIS to enhance the security of ISAC.
AB - In this paper, we investigate a secure transmission problem in a simultaneously transmitting and reflecting re-configurable intelligent surface (STAR-RIS) assisted integrated sensing and communication (ISAC) system. The STAR-RIS is exploited to establish line-of-sight links for sensing the target and transmitting the confidential signal to users via non-orthogonal multiple access. Specifically, the sum secrecy rate is maximized by jointly optimizing the transmit beamforming, artificial jamming and STAR-RIS's passive transmission and reflection beamformings, while ensuring the minimum beam-pattern gain required by the target is met. To deal with the non-convex problem, we divide it into two subproblems and leverage successive convex approximation to transform them into convex ones. Then, an alternating optimization algorithm is proposed to solve the problem iteratively. Simulation results demonstrate the effectiveness of the proposed scheme and the potential of STAR-RIS to enhance the security of ISAC.
KW - Artificial jamming
KW - integrated sensing and communication
KW - physical layer security
KW - simultaneously transmitting and reflecting intelligent surface
UR - http://www.scopus.com/inward/record.url?scp=85202836997&partnerID=8YFLogxK
U2 - 10.1109/ICC51166.2024.10623132
DO - 10.1109/ICC51166.2024.10623132
M3 - Conference contribution
AN - SCOPUS:85202836997
T3 - IEEE International Conference on Communications
SP - 5075
EP - 5080
BT - ICC 2024 - IEEE International Conference on Communications
A2 - Valenti, Matthew
A2 - Reed, David
A2 - Torres, Melissa
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 59th Annual IEEE International Conference on Communications, ICC 2024
Y2 - 9 June 2024 through 13 June 2024
ER -