Linear receivers for the DS-CDMA downlink exploiting orthogonality of spreading sequences

@article{Ghauri1998LinearRF,
  title={Linear receivers for the DS-CDMA downlink exploiting orthogonality of spreading sequences},
  author={Irfan Ghauri and D. T. M. Slock},
  journal={Conference Record of Thirty-Second Asilomar Conference on Signals, Systems and Computers (Cat. No.98CH36284)},
  year={1998},
  volume={1},
  pages={650-654 vol.1}
}
We address the problem of downlink interference rejection in a DS-CDMA system. Periodic orthogonal Walsh-Hadamard sequences spread different users' symbols followed by scrambling by a symbol aperiodic base-station specific overlay sequence. This corresponds to the downlink of the European UMTS wideband CDMA proposal. The point to point propagation channel from the cell-site to a certain mobile station is the same for all downlink signals (desired user as well as the interference). The composite… CONTINUE READING
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