Linear Space-time Multiuser Receiver in Wideband CDMA Systems
Yan Zhi-gang · Telecommunication Engineering · 2002
A novel model of linear space-time multiuser receiver in wideband multipath CDMA systems is proposed. The model analysis shows that a linear space-time multiuser detector can be decomposed into four cascade parts, which are match filters, space weighted combiner, multiuser combiner and multiuser detector. Furthermore, the former three parts are still carried out on the single user basis. The simulation result shows that such cascade structures can significantly reduce complexity of space-time multiuser detection, and accelerate the convergence of adaptive algorithms.