Improved CDMA performance through bias reduction for parallel interference cancellation

@article{Correal1997ImprovedCP,
  title={Improved CDMA performance through bias reduction for parallel interference cancellation},
  author={Neiyer S. Correal and R. Michael Buehrer and Brian D. Woerner},
  journal={Proceedings of 8th International Symposium on Personal, Indoor and Mobile Radio Communications - PIMRC '97},
  year={1997},
  volume={2},
  pages={565-569 vol.2}
}
Parallel multistage interference cancellation is a promising approach for practical implementation of multiuser detection. However, as this paper shows, direct implementation of multistage parallel interference cancellation (i.e. complete cancellation of the estimated interference) results in biased estimates and consequently reduced performance. A simple technique that mitigates the effect of the bias and provides significant performance gains over the direct implementation is presented. 

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