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This paper considers the problem of filter design with secrecy constraints, where two legitimate parties (Alice and Bob) communicate in the presence of an eavesdropper (Eve), over a Gaussian multiple-input multiple-output (MIMO) wiretap channel. In particular, this problem involves the design of the transmit and the receive filters, subject to a power constraint, which minimize the mean-squared error (MSE) between the legitimate parties whilst assuring that the eavesdropper MSE remains above adoi:10.1109/spawc.2012.6292927 dblp:conf/spawc/ReboredoRX12 fatcat:gjcka66mfza2fkehhjtrfgl2uu