Multislot estimation of fast-varying space-time channels in TD-CDMA systems

M. Nicoli, O. Simeone, U. Spagnolini

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


In this letter we propose a subspace method to estimate the time-varying space-time channel by taking into account the different rates of variation between delays/directions of arrival (slowly-varying) and faded amplitudes (fast-varying) of the multipath propagation. The stationarity of angles and delays across several time-slots is exploited to perform an unstructured estimation that avoids the explicit computation of the path parameters. Numerical analysis for a TD-CDMA system shows that the asymptotic performance is reached with a reasonable number of slots.

Original languageEnglish (US)
Pages (from-to)376-378
Number of pages3
JournalIEEE Communications Letters
Issue number9
StatePublished - Sep 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


  • Antenna array
  • Channel estimation
  • Multi-slot
  • Subspace method


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