On physical-layer security in underlay cognitive radio networks with full-duplex wireless-powered secondary system

Jiliang Zhang*, Gaofeng Pan, Hui Ming Wang

*此作品的通讯作者

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摘要

We consider an underlay cognitive radio system, in which a source in a secondary system transmits information to a full-duplex (FD) wireless-powered destination node in the presence of an eavesdropper. In particular, the destination node is equipped with a single receiving antenna and a single transmitting antenna to enable FD operation. The receiving antenna can simultaneously receive information and energy from the source through power-splitter architecture. The received energy is then used in the transmitting antenna to send jamming signals to degrade the eavesdropper's decoding capacity. Upper and lower bounds of probability of strictly positive secrecy capacity (SPSC) have been derived. Numerical results show that under the condition that the interference from the source and destination at primary user's receiver is smaller than the interference temperature limit, upper and lower bounds merge together to become the exact SPSC.

源语言英语
文章编号7514995
页(从-至)3887-3893
页数7
期刊IEEE Access
4
DOI
出版状态已出版 - 2016
已对外发布

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Zhang, J., Pan, G., & Wang, H. M. (2016). On physical-layer security in underlay cognitive radio networks with full-duplex wireless-powered secondary system. IEEE Access, 4, 3887-3893. 文章 7514995. https://doi.org/10.1109/ACCESS.2016.2591782