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Relay Selection for Security Enhancement in Cognitive Relay Networks
2015
IEEE Wireless Communications Letters
This letter proposes several relay selection policies for secure communication in cognitive decode-and-forward relay networks, where a pair of cognitive relays is opportunistically selected for security protection against eavesdropping. The first relay transmits the secrecy information to the destination, and the second relay, as a friendly jammer, transmits the jamming signal to confound the eavesdropper. We present new exact closedform expressions for the secrecy outage probability. Our
doi:10.1109/lwc.2014.2365808
fatcat:eeyyhgsetjcnli7s6gjs3uurhm