TY - JOUR
T1 - Securing Wireless Transmissions with RIS-Receiver Coordination
T2 - Passive Beamforming and Active Jamming
AU - Tang, Xiao
AU - Lan, Xunqiang
AU - Zhai, Daosen
AU - Zhang, Ruonan
AU - Han, Zhu
N1 - Publisher Copyright:
© 1967-2012 IEEE.
PY - 2021/6
Y1 - 2021/6
N2 - In this correspondence, we investigate the physical layer security issue with the assistance of a reconfigurable intelligent surface (RIS). In particular, we consider the single-input and multiple-output transmissions in the presence of a multi-antenna eavesdropper, where the legitimate receiver actively performs full-duplex jamming to confuse the eavesdropper. Meanwhile, the passive beamforming of the RIS is coordinated with the legitimate reception and jamming for security enhancement, leading to the joint optimization of receive beamforming, active jamming, and passive beamforming. The problem is solved under a block coordinate descent framework, where the receive beamforming is obtained through generalized eigenvalue decomposition, and the active jamming and passive beamforming are solved based on semidefinite programming. Simulation results show the combined effect of jamming and reflection upon the secrecy rate, also demonstrated is the performance superiority of the proposed scheme as compared with the conventional approaches in terms of wireless security.
AB - In this correspondence, we investigate the physical layer security issue with the assistance of a reconfigurable intelligent surface (RIS). In particular, we consider the single-input and multiple-output transmissions in the presence of a multi-antenna eavesdropper, where the legitimate receiver actively performs full-duplex jamming to confuse the eavesdropper. Meanwhile, the passive beamforming of the RIS is coordinated with the legitimate reception and jamming for security enhancement, leading to the joint optimization of receive beamforming, active jamming, and passive beamforming. The problem is solved under a block coordinate descent framework, where the receive beamforming is obtained through generalized eigenvalue decomposition, and the active jamming and passive beamforming are solved based on semidefinite programming. Simulation results show the combined effect of jamming and reflection upon the secrecy rate, also demonstrated is the performance superiority of the proposed scheme as compared with the conventional approaches in terms of wireless security.
KW - active jamming
KW - block coordinate descent
KW - Physical layer security
KW - reconfigurable intelligent surface
UR - http://www.scopus.com/inward/record.url?scp=85105849171&partnerID=8YFLogxK
U2 - 10.1109/TVT.2021.3079930
DO - 10.1109/TVT.2021.3079930
M3 - 文章
AN - SCOPUS:85105849171
SN - 0018-9545
VL - 70
SP - 6260
EP - 6265
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 6
M1 - 9430683
ER -