A space-time receiver for asynchronous DS-CDMA systems based on Kalman filter

K. Wang, H. Ge

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

A new Kalman filter based space-time (S-T) receiver is proposed in this paper. By modeling an asynchronous CDMA system as a first-order state-space model, we can recursively obtain the finite-length linear minimum mean square error (LMMSE) receiver, which provides the best multiple access interference (MAI) cancellation among all the linear filters. Further interference suppression is provided by the spatial beam-former. The proposed receiver overcomes the near-far problem existing in the conventional joint S-T rake receiver. Simulation results demonstrate that the proposed Kalman filter based S-T receiver significantly outperforms the conventional joint S-T rake receiver.

Original languageEnglish (US)
Pages (from-to)547-551
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume1
StatePublished - 2000
Event34th Asilomar Conference - Pacific Grove, CA, United States
Duration: Oct 29 2000Nov 1 2000

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Networks and Communications

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