TY - GEN
T1 - Joint Precoding and Jamming Design for Secure Transmission in NOMA-ISAC Networks
AU - Li, Dongdong
AU - Yang, Zhutian
AU - Zhao, Nan
AU - Wu, Zhilu
AU - Li, Yonghui
AU - Niyato, Dusit
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Integrated sensing and communication (ISAC) is an up-and-coming technique for future 6G networks. However, the communication message carried by the detection waveform will face the risk of being eavesdropped, which leads to the challenge of wireless security for ISAC networks. In this paper, we leverage non-orthogonal multiple access (NOMA) to support more users for the ISAC network, with the precoding well designed to guarantee the security. Specifically, we formulate a joint precoding optimization problem to maximize the sum secrecy rate for multiple users via artificial jamming, where the superimposed signal for NOMA users can be concurrently employed for the target detection. Since the optimization problem is non-convex, it is transformed into a convex one based on successive convex approximation (SCA). Then, we propose an iterative algorithm, through which the original optimization problem can be solved effectively. Simulation results show that the proposed secure NOMA-ISAC scheme can guarantee the secure transmission while ensuring the sensing performance.
AB - Integrated sensing and communication (ISAC) is an up-and-coming technique for future 6G networks. However, the communication message carried by the detection waveform will face the risk of being eavesdropped, which leads to the challenge of wireless security for ISAC networks. In this paper, we leverage non-orthogonal multiple access (NOMA) to support more users for the ISAC network, with the precoding well designed to guarantee the security. Specifically, we formulate a joint precoding optimization problem to maximize the sum secrecy rate for multiple users via artificial jamming, where the superimposed signal for NOMA users can be concurrently employed for the target detection. Since the optimization problem is non-convex, it is transformed into a convex one based on successive convex approximation (SCA). Then, we propose an iterative algorithm, through which the original optimization problem can be solved effectively. Simulation results show that the proposed secure NOMA-ISAC scheme can guarantee the secure transmission while ensuring the sensing performance.
KW - Integrated sensing and communication
KW - non-orthogonal multiple access
KW - physical layer security
KW - precoding optimization
UR - https://www.scopus.com/pages/publications/85149123798
U2 - 10.1109/WCSP55476.2022.10039359
DO - 10.1109/WCSP55476.2022.10039359
M3 - 会议稿件
AN - SCOPUS:85149123798
T3 - 2022 IEEE 14th International Conference on Wireless Communications and Signal Processing, WCSP 2022
SP - 764
EP - 769
BT - 2022 IEEE 14th International Conference on Wireless Communications and Signal Processing, WCSP 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE International Conference on Wireless Communications and Signal Processing, WCSP 2022
Y2 - 1 November 2022 through 3 November 2022
ER -