Resolution limits of blind multi-user multi-channel identification schemes-the bandlimited case

  • Authors:

  • A.-J. van der Veen

  • Affiliations:

  • Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands

  • Venue:
  • ICASSP '96 Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 05
  • Year:
  • 1996

Quantified Score

Hi-index 0.00

Visualization

Abstract

Blind space-time equalization and separation of multi-user digital communication signals presumes that the number of antennas M and the oversampling rate P is sufficiently large to be able to detect the number of sources and all channel lengths, and that the channel matrix is sufficiently well conditioned to allow inversion. A singular value analysis of the channel matrix for bandwidth limited signals provides necessary conditions for sufficient resolution, and guidelines for the selection of suitable M, P and equalizer lengths in relation to the bandwidth.