Multiuser Detection for Uplink DS-CDMA Amplify-and-Forward Relaying Systems

@article{Almeida2013MultiuserDF,
  title={Multiuser Detection for Uplink DS-CDMA Amplify-and-Forward Relaying Systems},
  author={Andr{\'e} Lima F{\'e}rrer de Almeida and Carlos Alexandre R. Fernandes and Daniel Benevides da Costa},
  journal={IEEE Signal Processing Letters},
  year={2013},
  volume={20},
  pages={697-700}
}
We consider the uplink of a cooperative DS-CDMA communication system, where each user communicates with the base station through a direct link and with the help of relays. A multiuser detection approach for the joint estimation of spatial signatures, channel gains and transmitted symbols of all the users is proposed. Such an approach is derived from a trilinear tensor model for the received signal that combines the source-destination and relay-destination links. The proposed multiuser receiver… CONTINUE READING

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