Abstract
By combining multipath processing, differential signal detection, and multiuser detection techniques, we develop a class of near-far resistant linear detectors for differentially coherent multipath signals. We derive and establish performance relationships among the following detectors: an optimally near-far resistant detector, a suboptimum detector which does not require knowledge of the signal coordinates, and a minimum mean square error (MMSE) detector which achieves near-optimum asymptotic efficiency. We present an adaptive multiuser detector which converges to the MMSE detector without training sequences and which requires less information than the conventional single user rake receiver.
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Huang, H.C., Verdú, S. Linear Differentially Coherent Multiuser Detection for Multipath Channels. Wireless Personal Communications 6, 113–136 (1998). https://doi.org/10.1023/A:1008800805715
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DOI: https://doi.org/10.1023/A:1008800805715