Spatial channel characterisation of FDD wireless links

MA Beach, BH Allen, BPG Karlsson

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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
Translated title of the contributionSpatial Channel Characterisation of FDD Wireless Links
Original languageEnglish
Title of host publicationSecond International Conference on 3G Mobile Communication Technologies
PublisherInstitution of Engineering and Technology (IET)
Pages68-72
Number of pages5
ISBN (Print)9780852967317, 0852967314
DOIs
Publication statusPublished - Dec 2002
Event2nd International Conference on 3G Mobile Communication Technologies - London, United Kingdom
Duration: 1 Mar 2001 → …

Publication series

NameProceedings of the International Conference on 3G Mobile Communication Technologies
PublisherIEEE
ISSN (Print)0537-9989

Conference

Conference2nd International Conference on 3G Mobile Communication Technologies
CountryUnited Kingdom
CityLondon
Period1/03/01 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: The authors gratefully acknowledge funding support of HEFCE JREI’98 for procurement of the Medav RUSK system and Allgon Systems AB for the loan of the antenna array. Furthermore, we wish to acknowledge additional funding from EPSRC grant GRL959555, 'Optimisation of Adaptive Antennas for UMTS Microcellular Environments'

Other identifier: IEE Conf. Publ. No. 477

Keywords

  • adaptive antenna arrays
  • clutter
  • correlation methods
  • decorrelation

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