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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: Thirty-Fourth Asilomar Conference on Signals, Systems and Computers, 2000-10-29 - 2000-11-01, Pacific Grove, CA.

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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.