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On Slow-Fading MIMO Systems With Nonseparable Correlation

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4 Author(s)
Far, R.R. ; Canadian Space Agency, Longueuil ; Oraby, T. ; Bryc, W. ; Speicher, R.

In a frequency-selective slow-fading channel in a multiple-input multiple-output (MIMO) system, the channel matrix is of the form of a block matrix. A method is proposed to calculate the limit of the eigenvalue distribution of block matrices if the size of the blocks tends to infinity. Asymptotic eigenvalue distribution of is also calculated, where the entries of are jointly Gaussian, with a correlation of the form (where is fixed and does not increase with the size of the matrix). An operator-valued free probability approach is used to achieve this goal. Using this method, a system of equations is derived, which can be solved numerically to compute the desired eigenvalue distribution.

Published in:

Information Theory, IEEE Transactions on  (Volume:54 ,  Issue: 2 )