Two-Layer Spreading CDMA: An Improved Method for Broadband Uplink Transmission

  title={Two-Layer Spreading CDMA: An Improved Method for Broadband Uplink Transmission},
  author={Xiaoming Peng and Khiam-Boon Png and Zhongding Lei and Francois P. S. Chin and Chi Chung Ko},
  journal={VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005.},
This paper proposes and investigates a novel code-division multiple-access (CDMA) system. This two-layer spreading CDMA (TLS-CDMA) system can combat multiple-access interference (MAI) and multipath interference (MPI) simultaneously and effectively in a multiuser scenario over frequency-selective fading channels. Moreover, a two-layer cell-specific scrambling code is proposed for the TLS-CDMA system in the uplink transmission to efficiently suppress other-cell interference (OCI) in a multicell… CONTINUE READING

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