A reduced complexity partial PIC detector
2001
A reduced complexity multistage detector is introduced for DS-CDMA systems, which is derived from the soft sigmoid decision PIC (parallel interference cancellation) detector. From the derivation, we can see that this reduced complexity detector has a clear partial interference cancellation explanation about the soft sigmoid PIC detector. Derivation and computer simulations show that the proposed detector can reach the performance of the soft sigmoid PIC detector easily without the variance estimation of the residual noise at each stage or the sigmoid decision function which is not easily implemented in practice.
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