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Subspace projection based blind channel order estimation of MIMO systems

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3 Author(s)
D. Kotoulas ; Dept. of Access Network Planning, Div. of Telecommun. Network Planning, Athens, Greece ; P. Koukoulas ; N. Kalouptsidis

In this paper, a novel algorithm based on subspace projections is developed for blindly estimating the discrete orders of a linear finite-impulse-response (FIR) multiple-input multiple-output (MIMO) system, the number of subsystems that attain each order as well as the total number of inputs. Furthermore, the proposed algorithm applies to single-input multiple-output (SIMO) system order estimation. Simulations in the context of blind channel order estimation show good performance in comparison to existing schemes developed for SIMO systems.

Published in:

IEEE Transactions on Signal Processing  (Volume:54 ,  Issue: 4 )