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A reduced complexity frequency offset estimation technique for flat fading MIMO channels

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2 Author(s)
Simoens, F. ; TELIN Dept., Ghent Univ., Belgium ; Moeneclaey, M.

In this contribution we consider the carrier frequency offset estimation in the case of linear digital modulation, transmitted over a flat-fading multiple-input multiple-output (MIMO) Channel. For this problem, maximum-likelihood (ML) estimation gives rise to a carrier frequency offset algorithm that involves the maximization of the magnitude of a Fourier transform. Since no closed-form solution can be derived and numerical calculation of the estimate is computationally hard, we propose a suboptimal solution. Our simulation results show that the proposed estimator yields a performance that is comparable with the Cramer-Rao bound.

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