Design of low density parity check codes for turbo multiuser detection

@inproceedings{Yue2003DesignOL,
  title={Design of low density parity check codes for turbo multiuser detection},
  author={Guosen Yue and Xiaodong Wang and Krishna R. Narayanan},
  booktitle={ICC},
  year={2003}
}
We consider the analysis and design of low density parity check (LDPC) codes for turbo multiuser detection in multipath code-division multiple-access (CDMA) channels. We develop techniques to compute the probability density function (pdf) of the extrinsic information at the output of the multiuser detector. We show that the output pdf can be modeled as symmetric Gaussian for synchronous CDMA in additive white Gaussian noise (AWGN) channel and as a mixture of symmetric Gaussian densities for… CONTINUE READING

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