TY - JOUR
T1 - Relaxation-phase-based Robust Directional Modulation with Angle Estimation Error
AU - Xu, Jin Zhe
AU - Xu, Qian
AU - Yang, Xin
AU - Wang, Ling
AU - Sun, Wen Bin
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Stability and security are critical to modern wireless communication systems, which have attracted more and more attention in recent years. In this paper, physical layer security (PLS) between the transmitter and the legitimate user (LU) is greatly enhanced by inventing a robust directional modulation (RDM) scheme based on a relaxation phase constraint. Unlike the conventional perfect channel state information (CSI) assumption, the estimation error of LUs' azimuths is assumed, which corresponds to a more practical scenario. Moreover, the influence of the imperfect CSI on the design of artificial noise (AN) vector is investigated. Accordingly, a specific strategy to introduce AN at the transmitter is proposed with imperfect CSI. Numerical simulations suggested that the RDM scheme based on the relaxation phase constraint possesses great potential for the enhancement of security of wireless communications.
AB - Stability and security are critical to modern wireless communication systems, which have attracted more and more attention in recent years. In this paper, physical layer security (PLS) between the transmitter and the legitimate user (LU) is greatly enhanced by inventing a robust directional modulation (RDM) scheme based on a relaxation phase constraint. Unlike the conventional perfect channel state information (CSI) assumption, the estimation error of LUs' azimuths is assumed, which corresponds to a more practical scenario. Moreover, the influence of the imperfect CSI on the design of artificial noise (AN) vector is investigated. Accordingly, a specific strategy to introduce AN at the transmitter is proposed with imperfect CSI. Numerical simulations suggested that the RDM scheme based on the relaxation phase constraint possesses great potential for the enhancement of security of wireless communications.
KW - artificial noise
KW - channel state information
KW - physical layer security
KW - robust directional modulation
UR - http://www.scopus.com/inward/record.url?scp=85146960687&partnerID=8YFLogxK
U2 - 10.1109/GLOBECOM48099.2022.10001257
DO - 10.1109/GLOBECOM48099.2022.10001257
M3 - 会议文章
AN - SCOPUS:85146960687
SN - 2334-0983
SP - 5499
EP - 5504
JO - Proceedings - IEEE Global Communications Conference, GLOBECOM
JF - Proceedings - IEEE Global Communications Conference, GLOBECOM
T2 - 2022 IEEE Global Communications Conference, GLOBECOM 2022
Y2 - 4 December 2022 through 8 December 2022
ER -