Secrecy outage analysis for underlay cognitive radio networks over correlated channels

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• 作者：Jiliang Zhang ; Hui Zhao ; Gaofeng Pan
• 关键词：cognitive radio networks ; correlated fading channels ; probability of non ; zero secrecy capacity ; secrecy outage probability
• 刊名：SCIENCE CHINA Information Sciences
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：60
• 期：2
• 全文大小：225 KB
• 刊物类别：Computer Science
• 刊物主题：Chinese Library of Science
  Information Systems and Communication Service
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1919
• 卷排序：60

文摘

This paper investigates the secrecy outage performance of underlay cognitive radio networks, in which a source in a secondary system transmits its confidential information to a legitimate destination in the presence of an eavesdropper. Specifically, the main (the source-to-destination) and eavesdropping (the sourceto- eavesdropper) channels are assumed to be correlated. Moreover, it is also assumed that the main channel and the channel from the source to the primary user’s receiver are correlated. Tight closed-form analytical expression for secrecy outage probability and the closed-form analytical expression for the probability of non-zero secrecy capacity are derived and validated by simulation results when the interference temperature limit is comparably large.