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Statistical characterization of the time-varying orthogonalized MIMO systems over non-isotropic Rayleigh fading channels

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3 Author(s)
Dusan B. Drajic ; Faculty of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, 11000 Belgrade, Serbia ; Predrag N. Ivanis ; Milena M. Stojnic

In this paper, we investigate the performances of time-varying multiple-input-multiple-output (MIMO) systems. In particular, we consider statistical properties of the output signal-to-noise ratio (SNR) for two classes of MIMO techniques - multichannel beamforming (MB) and orthogonal space-time block codes (OSTBC). The closed-form expressions for the probability density function (PDF) and the level crossing rate (LCR) of the output SNR are obtained for the arbitrary channel matrix dimensions for the case of Rayleigh propagation with non-isotropic scattering. Using the derived expressions, we find the parameters for a corresponding finite state Markov channel model that is used to determine the throughput and the residual packet error rate in time-varying MIMO system with hybrid automatic repeat-request (HARQ) procedures. Numerical simulations are provided to endorse our theoretical results.

Published in:

Telecommunication in Modern Satellite Cable and Broadcasting Services (TELSIKS), 2011 10th International Conference on  (Volume:1 )

Date of Conference:

5-8 Oct. 2011