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A joint adaptive MMSE downlink receiver

Stirling, Iain and Garcia-Alis, Daniel and Weiss, Stephan and Rice, Garrey and Stewart, Robert (2000) A joint adaptive MMSE downlink receiver. In: Conference record of the 34th Asilomar Conference on Signals and Computers 2000. IEEE, New York, pp. 1436-1440. ISBN 0780365143

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Abstract

We present three joint adaptive mean squared error receiver structures for a time division duplex down-link scenario in which a single mobile station is allocated several code-multiplexed channels. The first structure is a bank of single channel MMSE receivers. The second is composed of an equaliser common to all the received channels and a bank of matched filters for despreading. The equaliser can be updated using a multiple-error filtered-X LMS algorithm. The final proposed structure features both an equaliser and a bank of MMSE receivers. The performance of the three architectures is tested and compared under multipath fading channel propagation conditions and BER values are provided.