Receiver Originated Physical-Layer Robust Secure Transmissions in Wireless Systems
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影响因子：4.348
DOI码：10.1109/LWC.2017.2755652
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, andt 61372078"
关键字：Physical-layer security, pseudorandom signal, channel estimation, secrecy capacity
摘要：This letter proposes a receiver-originated physical-layer secure transmissions scheme (ROST) which consists of two-phase communications. In phase 1, the receiver sends a pseudorandom signal (only known by itself) to the transmitter and in phase 2, the transmitter directly sends out the mixture of its confidential message and the received pseudorandom signal. The receiver could estimate the channel with the help of the pseudorandom signal before cancelling it from the received mixed signal, and finally detect the confidential information. By contrast, the eavesdropper can hardly obtain any confidential information because it cannot estimate the channel without any pilot signal in both phases transmissions and is interfered by the pseudorandom signal. Furthermore, we discuss the secrecy capacity of ROST and show that ROST can always keep the security of the confidential message, achieve much higher secrecy capacity than the traditional scheme, even without any channel information at the transmitter.
合写作者：Xinyue Hu,Jun Gao
第一作者：Caihong Kai
论文类型：期刊论文
通讯作者：Shengli Zhang
学科门类：工学
文献类型：J
卷号：7
期号：1
页面范围：86 - 89
ISSN号：2162-2345
是否译文：否
发表时间：2017-09-22
收录刊物：SCI、EI