Artificial-Noise-Aided Nonlinear Secure Transmission for MU-MISO Wiretap Channel with Quantized CSIT

Sun, Liang1,2; Wang, Rui3; Wang, Hai3; Leung, Victor C. M.2

10.1109/ICC.2017.7997184

2017

1550-3607

2017 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)

Paris, France

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

We consider nonlinear transceiver design for downlink multiuser multi-antenna secure communications with an external multi-antenna eavesdropper. The multi-antenna transmitter simultaneously transmits confidential-message-bearing signals and artificial noise (AN) using nonlinear Tomlinson Harashima precoding based on the limited channel state information feedback. For the proposed nonlinear secure transceiver, we reveal the mechanism behind which makes this nonlinear precoding superior than the linear precoding methods in guaranteeing secrecy of wireless multiuser multi-antenna systems. We also obtain analytical bounds of the ergodic secrecy rate of each legitimate receiver and the ergodic secrecy sum rate of the system. Based on the analytical result, the near optimal power allocation to the information signals and AN can be obtained using numerical method. Numerical results are shown to verify the advantage of the proposed nonlinear method over the linear zero-forcing precoding.

Physical layer security artificial noise secrecy sum rate nonlinear precoding limited feedback

其他

英语

CPCI-S ; EI

Shenzhen Innovation Project[JCYJ20160331115457945]

Telecommunications

Telecommunications

WOS:000424872105058

20173504099699

Web of Science

1.Beihang Univ, Sch Elect & Informat Engn, Beijing, Peoples R China
2.Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC, Canada
3.South Univ Sci & Technol China, Shenzhen, Peoples R China

Sun, Liang,Wang, Rui,Wang, Hai,et al. Artificial-Noise-Aided Nonlinear Secure Transmission for MU-MISO Wiretap Channel with Quantized CSIT[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2017.