Abstract
A four-element pilot symbol-assisted coherent adaptive antenna array diversity receiver for 4.096 Mchip/s wideband direct sequence code division multiple access mobile radio is implemented and its performance in a multipath fading environment is evaluated by a laboratory experiment using hardware fading simulators. The receiver comprises an adaptive antenna array using the normalised least mean square algorithm and Rake combiner. It is demonstrated that for the three-user case, the required average signal-to-interference ratio for obtaining an average BER of 10–3 can be reduced by ~ 8 dB compared to four-branch antenna diversity.
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