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Spatial channel characterisation of FDD wireless links

  • Ben Allen
    ,
  • Mark Beach
    ,
  • Peter Karlsson
Research Output: Chapter in Book/Report/Conference proceeding Conference contribution Peer-review

Abstract

For smart antenna deployments in frequency division duplex (FDD) applications the downlink weight vector can be derived from the uplink steering vector. However, this assumes a degree of correlation between these channels. It is shown here that de-correlation between uplink and downlink power azimuth spectrums (PAS) is significant for frequency offsets as small as 5 MHz in urban environments, with this increasing to 15 MHz when long term averaging is applied. Results reported here are computed from measured data taken within the UMTS (Universal Mobile Telecommunications System) frequency band for a cluttered urban environment

Publication Information

Output type

Research Output: Chapter in Book/Report/Conference proceeding Conference contribution Peer-review

Original language

English

Publication milestones

  • Published - 01/01/2001

Publication status

Published - 01/01/2001

Publisher

Institution of Engineering and Technology, United Kingdom

External Publication IDs

  • handle.net: 10547/271135
  • Scopus: 0035014635

Host publication title

nan

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