A multi-element blind adaptive multiuser detector

Multiuser detection techniques provide attractive performance characteristics for CDMA systems. A previously proposed blind adaptive multiuser detector provides near-far resistance without requiring any more information than a conventional detector. An optimum and two suboptimum multi-element blind adaptive receivers are proposed. These receivers exploit the spatial distribution of the users in a multiple access environment. The steady state performance of these detectors is analyzed and their complexity and the level of information required by each of them is compared.