Relay Selection for Security Enhancement in Cognitive Relay Networks
Top Cited Papers
- 30 October 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Wireless Communications Letters
- Vol. 4 (1), 46-49
- https://doi.org/10.1109/lwc.2014.2365808
Abstract
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 closed-form expressions for the secrecy outage probability. Our analysis and simulation results strongly support our conclusion that the proposed relay selection policies can enhance the performance of secure cognitive radio. We also confirm that the error floor phenomenon is created in the absence of jamming.Keywords
Funding Information
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) (102.04-2013.13)
This publication has 11 references indexed in Scilit:
- Destination Assisted Cooperative Jamming for Wireless Physical-Layer SecurityIEEE Transactions on Information Forensics and Security, 2013
- On the Application of Cooperative Transmission to Secrecy CommunicationsIEEE Journal on Selected Areas in Communications, 2012
- Joint Relay and Jammer Selection for Secure Two-Way Relay NetworksIEEE Transactions on Information Forensics and Security, 2011
- Opportunistic Relaying for Secrecy Communications: Cooperative Jamming vs. Relay ChattingIEEE Transactions on Wireless Communications, 2011
- Diversity-Multiplexing Tradeoff for the Multiple-Antenna Wire-tap ChannelIEEE Transactions on Wireless Communications, 2011
- Optimal Cooperative Jamming to Enhance Physical Layer Security Using RelaysIEEE Transactions on Signal Processing, 2010
- Secure communication over MISO cognitive radio channelsIEEE Transactions on Wireless Communications, 2010
- Improving Wireless Physical Layer Security via Cooperating RelaysIEEE Transactions on Signal Processing, 2009
- Relay selection for secure cooperative networks with jammingIEEE Transactions on Wireless Communications, 2009
- Wireless Information-Theoretic SecurityIEEE Transactions on Information Theory, 2008