On the relationship between the multi-antenna secrecy communications and cognitive radio communications
On the relationship between the multi-antenna secrecy communications and cognitive radio communications
This paper studies the achievable rates of the multi-antenna or multiple-input multiple-output (MIMO) secrecy channel with multiple single-/multi-antenna eavesdroppers. By assuming Gaussian input, the maximum achievable secrecy rate is obtained with the optimal transmit covariance matrix that maximizes the minimum difference between the channel mutual information of the secrecy user …