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A performance bound for MIMO-OFDM channel estimation and prediction

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3 Author(s)
Larsen, M.D. ; Brigham Young Univ., Provo, UT ; Swindlehurst, A.L. ; Svantesson, T.

The performance of a mobile MIMO-OFDM system depends on the ability of the system to accurately account for the effects of the frequency-selective time-varying channel at every symbol time and at every frequency subcarrier. In this paper, a vector formulation of the Cramer-Rao bound (CRB) for biased estimators and for functions of parameters is used to find a lower bound on the estimation and prediction error of such a system. Numerical simulations demonstrate the benefits of multiple antennas for channel estimation and prediction and illustrate the impact of calibration errors on estimation performance when using parametric channel models.

Published in:

Sensor Array and Multichannel Signal Processing Workshop, 2008. SAM 2008. 5th IEEE

Date of Conference:

21-23 July 2008

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