Secrecy outage probability analysis of hop-by-hop beamforming MIMO relaying system
Keywords:
MIMO, MRT, PLS, SOP, BeamformingAbstract
In this paper, we propose and analyze the secure performance of a dual hop beamforming MIMO system under the presence of an eavesdropper. To exploit the multi-antenna for improving the secrecy performance, we propose a linear processing maximal ratio transmission schemes at the transmitter and diversity combining technique using maximal ratio combining (MRC) at the receiver. We present the fundamental of the output SNR at legitimate users that is propagation over channel matrices and output SNR at eavesdropper. The probability density function (PDF) of the output SNR for arbitrary number of antenna elements configured at the transmitter and receiver are plotted and discussed. After that apply them to derive the closed-form expressions of secrecy performance of the proposed MIMO system for each linear processing scheme. The closed-form of secrecy outage probability expression (SOP) are derived in condition the channel having Rayleigh distribution. All analysis results are validated by Monte Carlo simulations.
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