Multirate SIC receiver with several amplitude estimation methods for UMTS FDD uplink

In this paper, a multirate successive interference cancellation (MSIC) receiver for UMTS base stations is presented. The receiver takes into account the multirate nature of the order in which the users should be detected and cancelled. Several procedures to estimate the amplitude of the received signals are considered. The simulation results demonstrate that the performance of the proposed MSIC receiver using these amplitudes estimation techniques exceeds that of the MSIC, which uses the magnitude of the matched filter (MF) outputs as the received amplitude estimate. Finally, it will be shown that the received amplitude estimate. Finally, it will be shown that the proposed scheme outperforms other commonly employed receivers like the MMSE receiver and the correlation receiver.