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Second-order blind MIMO channel identification based on correlative coding: asymptotic performance analysis

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2 Author(s)
Xavier, J. ; Inst. de Sistemas e Robotica, Inst. Superior Tecnico, Lisbon, Portugal ; Barroso, V.

We study the asymptotic performance of a recently proposed 2nd order statistics (SOS) method for blind identification of multiple-input multiple-output (MIMO) systems driven by colored inputs, i.e., with distinct 2nd order spectra. The spectral asymmetry may be achieved with a correlative filter in each source. We establish the asymptotic normality of the MIMO channel estimate and obtain its asymptotic covariance matrix. Optimal design of the correlative pre-filters can be inferred from the presented theoretical analysis

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Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on

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