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A comparative investigation on channel estimation methods for the down-link of STBC-OFDM system in the mobile communication environment is presented and analyzed in terms of complexity, mean square error, and bit error rate in this paper. As a result, Wiener filter shows the best performance. Concerning the complexity as well as the performance, Lagrange interpolation is considered as a proper choice for the down-link of MIMO-OFDM system.
Date of Conference: 21-25 Sept. 2007