The 2D-Rake and PPIC receiving scheme for the uplink of DS/CDAM system
Hua Zhang · Chinese Journal of Radio Science · 2002
A receiving scheme including 2D Rake and PPIC is proposed for the uplink of DS/CDMA mobile communication systems. In this new scheme, smart antenna is used to cancel interferences whose DOA is different from the desired user At the same time, smart antenna can be used to collect the correlated multipath components, a Rake receiver is used to collect the uncorrelated multipah components. Then a PPIC cancels the strong interferences in the output of the 2D Rake receiver. The new scheme can not only enhance the power of the desired signal but cancel most of the interferences, which makes it a complete receiving scheme for the uplink of DS/CDMA system. The simulation results indicate the validity of this scheme.