Abstract
In this letter, we introduce the performance of maximal ratio combining (MRC) with weighting errors for physical layer security. We assume both legitimate user and eavesdropper each equipped with multiple antennas employ non ideal MRC. The non ideal MRC is designed in terms of power correlation between the estimated and actual fadings. We derive new closed-form and generalized expressions for connection and secrecy outage probability. Next, we investigate asymptotic behavior of the outage probability for high signal-to-noise ratio in main channel between the legitimate user and the transmitter. The asymptotic analysis provides new insights about actual diversity provided by MRC with weighting errors. We substantiate our claims with the analytic results and numerical evaluations.
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