Publication

Performance of asynchronous multicarrier CDMA multiuser receiver over frequency selective fading channels (2003)

Author(s): Sharif BS; Chester EG; Yi SJ; Liu R

  • : Performance of asynchronous multicarrier CDMA multiuser receiver over frequency selective fading channels

Abstract: An asynchronous multicarrier code division multiple access (MC-CDMA) scheme over frequency selective multipath Rayleigh fading channels for the reverse link of a mobile communication system is investigated when the delay spread is in excess of a symbol interval. An architecture of a centralized decision feedback equalizer (CDFE) based on the minimum mean-square-error (MMSE) criterion is suggested to reduce both inter-symbol-interference (ISI) and multiple access interference (MAI) due to the multi-path propagation, and the MAI due to the effect of the reverse asynchronous reception mode at the base station. The receiver architecture is for multi-user detection (MUD) consisting of a multiple-layer feed-forward filter (ML-FFF) and a centralized feed back filter (CFBF). Results indicate that an enhancement in capacity and good interference resistance are obtained by the proposed multi-user detection scheme over the structure without CFBF (NCDFE), which only uses ML-FFF and FBF. Additionally, it is demonstrated that the structure performs multi-path energy Rake combining. (6 References).

Notes: Ke G NiuZ 2. Piscataway, NJ, USA. 14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications. Proceedings. Beijing, China. IEEE Commun. Soc. 7-10 Sept. 2003.

  • Short Title: Performance of asynchronous multicarrier CDMA multiuser receiver over frequency selective fading channels
  • Date: 7-10 September 2003
  • Conference Name: 14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
  • Volume: 2
  • Pages: 1536-1540
  • Publisher: IEEE
  • Publication type: Conference Proceedings (inc. abstract)
  • Bibliographic status: Published
Staff

Dr Graeme Chester
Senior Lecturer

Professor Bayan Sharif
Head of School