Analysis of a Semi-Blind Beamspace-Time Interference Cancellation for WCDMA Systems in Microcellular Environments

"In this paper, we investigate the performance of a semi-blind spatial-temporal beamforming receiver for an asynchronous high data rate direct sequence wideband code division multiple access (DS-WCDMA) system in a microcellular environment. The presented receiver uses subspace channel identification to perform joint channel equalization, multipath energy combination and spatial interference cancellation. The simulation results show a significant performance improvement and reduction of required training symbols when compared against a receiver employing a training-based spatial-temporal recursive least squares (RLS) beamformer."