On Secure Underlay MIMO Cognitive Radio Networks With Energy Harvesting and Transmit Antenna Selection

被引：110

作者：

Lei, Hongjiang ^{[1
,2
]}

Xu, Ming ^{[1
]}

Ansari, Imran Shafique ^{[3
]}

Pan, Gaofeng ^{[4
]}

Qaraqe, Khalid A. ^{[3
]}

Alouini, Mohamed-Slim ^{[2
]}

机构：

[1] Chongqing Univ Posts & Telecommun, Chongqing Key Lab Mobile Commun Technol, Chongqing 400065, Peoples R China

[2] King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 239556900, Saudi Arabia

[3] Texas A&M Univ Qatar, Dept Elect & Comp Engn, Doha 23874, Qatar

[4] Southwest Univ, Chongqing Key Lab Nonlinear Circuits & Intelligen, Chongqing 400715, Peoples R China

来源：

IEEE TRANSACTIONS ON GREEN COMMUNICATIONS AND NETWORKING | 2017年 / 1卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Multiple-input-multiple-output; cognitive radio networks; energy harvesting; secrecy outage performance; transmit antenna selection;

D O I：

10.1109/TGCN.2017.2684827

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, we consider an underlay multiple-input-multiple-output (MIMO) cognitive radio network (CRN) including a pair of primary nodes, a couple of secondary nodes, and an eavesdropper, where the secondary transmitter is powered by the renewable energy harvested from the primary transmitter in order to improve both energy efficiency and spectral efficiency. Based on whether the channel state information of wiretap links are available or not, the secrecy outage performance of the optimal antenna selection (OAS) scheme and suboptimal antenna selection (SAS) scheme for underlay MIMO CRN with energy harvesting are investigated and compared with traditional space-time transmission scheme. The closed-form expressions for exact and asymptotic secrecy outage probability are derived. Monte-Carlo simulations are conducted to testify the accuracy of the analytical results. The analysis illustrates that the OAS scheme outperforms SAS scheme. Furthermore, the asymptotic result shows that no matter which scheme is considered, the OAS and SAS schemes can achieve the same secrecy diversity order.

引用

页码：192 / 203

页数：12