TY - GEN
T1 - Semi-blind MIMO channel estimation for space-time coded space-division multiple-access systems
AU - Shahbazpanahi, Shahram
AU - Gershman, Alex B.
AU - Giannakis, Georgios B.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2004
Y1 - 2004
N2 - In this paper, we propose a new method to simultaneously estimate the channel state information (CSI) of several transmitters that use orthogonal space-time block codes to communicate with a receiver. Our approach is based on a generalization of the well-known Capon technique to the problem of multiuser CSI estimation. Such a generalization allows us to estimate blindly the subspace spanned by the user channels. To extract the CSI from this subspace, only a few training blocks have to be used. The so-obtained CSI can then be used in any coherent multiuser MIMO receiver.
AB - In this paper, we propose a new method to simultaneously estimate the channel state information (CSI) of several transmitters that use orthogonal space-time block codes to communicate with a receiver. Our approach is based on a generalization of the well-known Capon technique to the problem of multiuser CSI estimation. Such a generalization allows us to estimate blindly the subspace spanned by the user channels. To extract the CSI from this subspace, only a few training blocks have to be used. The so-obtained CSI can then be used in any coherent multiuser MIMO receiver.
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M3 - Conference contribution
AN - SCOPUS:28244476886
SN - 0780385454
T3 - 2004 Sensor Array and Multichannel Signal Processing Workshop
SP - 392
EP - 396
BT - 2004 Sensor Array and Multichannel Signal Processing Workshop
T2 - 2004 Sensor Array and Multichannel Signal Processing Workshop
Y2 - 18 July 2004 through 21 July 2004
ER -