To Establish a Secure Channel From a Full-Duplex Transmitter to a Half-Duplex Receiver: An Artificial-Noise-Aided Scheme
点击次数：
影响因子：4.348
DOI码：10.1109/LWC.2018.2876540
所属单位：School of ComputerScience and Information Engineering, Hefei University of Technology
发表刊物：IEEE Wireless Communications Letters
项目来源："National Natural Science Foundation of China under Grants 61571178, and 61771315."
关键字：Physical-layer security, artificial noise, secrecy rate, outage probability, full-duplex
摘要：This letter considers a new secure communication scenario where a full-duplex transmitter (Alan) needs to transmit confidential information to a half-duplex receiver (Bob), with an eavesdropper (Eve) that tries to overhear the confidential information. For realizing the secure communication, we design an effective artificial-noise-aided secure scheme (ANAS) which is composed of two phases' transmissions: in Phase 1, Alan and Bob transmit two independent artificial noises (ANs) simultaneously, while in Phase 2, Alan superimposes the AN received in Phase 1 with its confidential signal and sends out the mixed signal. Since the superimposed AN by Alan in Phase 2 can be effectively cancelled by Bob while remains an interference to Eve, a secrecy rate could then be achieved. Importantly, we derive the approximate closed-form solutions of the average secrecy rate and secrecy outage probability of ANAS under a Rayleigh block-fading channel. Numerical results show that the secrecy rate of ANAS is about twice higher than the benchmark scheme, even though in ANAS half of the time is used to transmit ANs.
合写作者：Shengli Zhang,Zhongyi Guo,Jun Gao
第一作者：Xinyue Hu
论文类型：期刊论文
通讯作者：Caihong Kai
学科门类：工学
文献类型：J
卷号：8
期号：2
页面范围：480 - 483
ISSN号：2162-2345
是否译文：否
发表时间：2018-10-07
收录刊物：SCI、EI