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Equalisers can provide significant improvement in the performance of CDMA-based systems such as UMTS. Naturally, the level of improvement introduced depends on the employed equalisation technique. Reported are the results of an investigation into the performance of a Kalman-based channel-estimator/equaliser for use in high speed downlink packet access (HSDPA) receivers. Also, the performances of the Kalman and the sliding window chip rate equaliser (SWCE) algorithms are compared.
Date of Publication: 26 May 2005