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In this paper, three different implementations of a multistage partial parallel interference cancellation (PIC) receiver for the asynchronous UMTS signal are presented and compared. The proposed structures take into account the scrambling and channelization codes employed in UMTS and two of them are advanced structures specifically designed to attempt to remove completely the multiuser interference...
A method for intercarrier interference (ICI) mitigation in MC-DS-CDMA systems based on the autocorrelation properties of the CDMA codes is presented. The proposed transmission scheme does not imply additional complexity to the system and the bit error rate at the receiver reaches the bound of performance of a MC-DS-CDMA system without ICI.
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