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Semi-blind multi-user MIMO channel estimation based on Capon and MUSIC techniques

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3 Author(s)
S. Shahbazpanahi ; Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada ; A. B. Gershman ; G. B. Giannakis

We consider the problem of simultaneous estimation of the channel state information (CSI) of several transmitters that use orthogonal space-time block codes to communicate with a single receiver. Based on the generalizations of the Capon and MUSIC techniques, we propose two novel algorithms to estimate multi-user MIMO channels. These algorithms estimate the subspace spanned by the user channels blindly and use only a few training blocks to extract the users' CSI from this subspace.

Published in:

Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.  (Volume:4 )

Date of Conference:

18-23 March 2005