Abstract
A multi-stage partial parallel interference cancellation receiver is proposed for the multi-rate DS-CDMA system which adopts the multiple processing gain scheme. In each stage of the proposed receiver, partial cancellation is performed with an adaptive decision threshold which is computed from the matched filter outputs of the previous stage. The BER performance of the proposed receiver is obtained by simulation in a Rayleigh fading channel. It is shown that the proposed receiver achieves smaller BER than the multi-stage parallel interference cancellation receiver and extended group-wise successive interference cancellation receiver in the multi-rate DS-CDMA system.
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