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AASCIT Communications | Volume 5, Issue 1 | Mar. 14, 2018 online | Page:8-21
Secure Massive MIMO Transmission for Cognitive Radio Networks
In this paper, we consider the problem of physical layer security in Cognitive Radio Networks (CRNs), where a Secondary User Transmitter (SU-Tx) sends confidential messages to a Secondary User Receiver (SU-Rx) on the same frequency band of a primary user (PU) in the presence of a multiple antennas Eavesdropper. Massive Multiple Input Multiple Output (M-MIMO) technology is considered a key technology for next generation wireless systems, which provide higher rates and improve the reliability through diversity gains and spectrum efficiencies. We consider the effect of M-MIMO in improving the physical layer security in the presence of multiple antennas eavesdropper in CRNs, which has not yet been clarified. The Channel State Information (CSI) of the SU-Rx is assumed to be available at the transmitter side, whereas the CSI of the eavesdropper is assumed not known. It is found that M-MIMO is able to combat passive eavesdropping. Moreover, in order to investigate the effect of active eavesdropping on the secrecy performance of CRNs, the secrecy rate and the secrecy outage probability of this case is studied. The effects of some parameters such as the transmitted power at SU-Tx, interference temperature limit, and number of PUs are studied.
Hefdhallah Sakran, Department of Electrical Engineering, IBB University, Yemen.
Azzam Al-nahari, Department of Electrical Engineering, IBB University, Yemen.
Faisal Al-kamali, Department of Electrical Engineering, IBB University, Yemen.
Sami Tarbosh, Department of Electrical Engineering, IBB University, Yemen.
Cognitive Radio, Massive MIMO, Achievable Secrecy Rate, Secrecy Outage Probability
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Arcticle History
Submitted: Jan. 16, 2018
Accepted: Feb. 18, 2018
Published: Mar. 14, 2018
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