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http://dx.doi.org/10.5909/JBE.2016.21.1.105

Relay Selection for Two-hop Cooperative Jamming Network with Multiple Eavesdroppers  

Choi, Yongyun (Department of Electrical and Computer Engineering and INMC, Seoul National Univ.)
Lee, Jae Hong (Department of Electrical and Computer Engineering and INMC, Seoul National Univ.)
Publication Information
Journal of Broadcast Engineering / v.21, no.1, 2016 , pp. 105-108 More about this Journal
Abstract
In this paper, a cooperative jamming network with multiple relays and multiple eavesdroppers is investigated. Among the relays, one best relay is selected to amplify and forward the signal to destination through two phases. To confuse eavesdroppers, the destination transmits a jamming signal in the first phase and the source transmits jamming signal in the second phase. Secrecy rate of this system is derived, and based on the available channel state information (CSI), relay selection schemes are proposed, respectively. Numerical results show that the performance of the proposed relay selection scheme outperforms than that of random relay selection scheme.
Keywords
physical layer security; cooperative jamming; eavesdropper; relay selection; secrecy rate;
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