Power Allocation and Outage Analysis for Secure MISO Cognitive Radio Networks with an Unknown Eavesdropper
Authors: Jia, S., Zhang, J., Zhang, D., Hao, W. and Gao, F.
Journal: IEEE Transactions on Vehicular Technology
Volume: 69
Issue: 12
Pages: 16294-16298
eISSN: 1939-9359
ISSN: 0018-9545
DOI: 10.1109/TVT.2020.3040964
Abstract:This paper investigates the power allocation problem for secure secondary transmission in a multiple-input single-output cognitive wiretap system with artificial noise (AN). The secondary transmitter exchanges confidential information with the secondary destination in the presence of an unknown eavesdropper. Since the eavesdropper's channel state information (CSI) is unavailable, we propose an optimal adaptive power allocation scheme, and derive a closed-form expression of the optimal power allocation factor that minimizes the secrecy outage probability (SOP). A suboptimal fixed power allocation scheme is also proposed to reduce the system complexity. Moreover, exact closed-form expressions of SOP under both schemes are derived. Numerical results are provided to corroborate the accuracy of our analytical results and the superiority of the proposed schemes to the benchmarks.
https://eprints.bournemouth.ac.uk/35243/
Source: Scopus
Power Allocation and Outage Analysis for Secure MISO Cognitive Radio Networks With an Unknown Eavesdropper
Authors: Jia, S., Zhang, J., Zhang, D., Hao, W. and Gao, F.
Journal: IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Volume: 69
Issue: 12
Pages: 16294-16298
eISSN: 1939-9359
ISSN: 0018-9545
DOI: 10.1109/TVT.2020.3040964
https://eprints.bournemouth.ac.uk/35243/
Source: Web of Science (Lite)
Power Allocation and Outage Analysis for Secure MISO Cognitive Radio Networks with an Unknown Eavesdropper
Authors: Jia, S., Zhang, J., Zhang, D., Hao, W. and Gao, F.
Journal: IEEE Transactions on Vehicular Technology
Volume: 69
Issue: 12
Pages: 16294-16298
ISSN: 0018-9545
Abstract:This paper investigates the power allocation problem for secure secondary transmission in a multiple-input single-output cognitive wiretap system with artificial noise (AN). The secondary transmitter exchanges confidential information with the secondary destination in the presence of an unknown eavesdropper. Since the eavesdropper's channel state information (CSI) is unavailable, we propose an optimal adaptive power allocation scheme, and derive a closed-form expression of the optimal power allocation factor that minimizes the secrecy outage probability (SOP). A suboptimal fixed power allocation scheme is also proposed to reduce the system complexity. Moreover, exact closed-form expressions of SOP under both schemes are derived. Numerical results are provided to corroborate the accuracy of our analytical results and the superiority of the proposed schemes to the benchmarks.
https://eprints.bournemouth.ac.uk/35243/
Source: BURO EPrints