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Channel identification in MIMO-OFDM systems

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2 Author(s)
Wei Bai ; Shangai Res. Center for Wireless Commun., China ; Zhiyong Bu

A blind channel identification problem based on exploiting the virtual carrier is investigated for MIMO-OFDM systems. Sufficient identifiability conditions are established for MIMO-OFDM channel to be identifiable up to a unitary matrix. And the subspace blind channel identification method is proposed. The method is attractive for its potential to increase the system's channel utilization due to no restriction on length of the cyclic prefix. Computer simulation results are finally provided to illustrate the effectiveness of the proposed blind channel identification method.

Published in:

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on  (Volume:2 )

Date of Conference:

31 May-2 June 2004