HD-PIC receiver

A hard-decision parallel interference cancellation receiver suitable for closed-loop power controlled CDMA uplink is introduced. Receiver algorithms for cancellation and SIR estimation are presented. A simple model for inter-cell interference is proposed to gain insight into the detector performance in cellular CDMA networks. Multiantenna diversity reception with maximal-ratio combining is employed in reception. The receiver performance is evaluated in fading multipath environments with simulations. Performance gains with regard to the conventional receiver are found in both pico- and macro-cellular environments. Gain from cancellation is found to be larger in more rapidly fading vehicular environments, where power control has less effect on the fluctuation of the received power. Results suggest the utilisation of the near-far robustness of the HD-PIC in power control algorithm design.