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Blind channel equalization in a multiuser OFDM communications system

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2 Author(s)
Yatawatta, S. ; Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA ; Petropulu, A.P.

We consider a multiuser OFDM system, and propose a novel approach for blind channel estimation. Each user information signal is linearly precoded before OFDM modulation. The receiver uses an antenna array. Using cross-correlations of the blocks received at the array elements leads to the estimation of the underlying channels within a scaling ambiguity.

Published in:

Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on  (Volume:2 )

Date of Conference:

3-6 Nov. 2002