Array Processing and Adaptive PIC Technology for Uplink of WCDMA System
Gong Yao · Dianzi xuebao · 2001
A combined scheme of smart antenna and PIC with low complexity is proposed for the uplink receiving of WCDMA system.At first we develop the LS DRMTA algorithm proposed by Z.Rong into a new algorithm named pilot bit assisted LMS DRMTA in accordance with the uplink frame structure of WCDMA system.The proposed algorithm cuts down lots of computation complexity of LS DRMTA algorithm,which simplifies its application in WCDMA system.Further more,the simulation experiments indicate that the new algorithm can perform at much lower BER than LS DRMTA.After the array processing of the received signal by the proposed algorithm,we go further to cancel the CCI by adaptive PIC which is a useful method for MUD.The overall scheme proposed is characterized by low computation complexity?little delay and easy real time implemetation.