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 contribution | Spatial Channel Characterisation of FDD Wireless Links |
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Original language | English |
Title of host publication | Second International Conference on 3G Mobile Communication Technologies |
Publisher | Institution of Engineering and Technology (IET) |
Pages | 68-72 |
Number of pages | 5 |
ISBN (Print) | 9780852967317, 0852967314 |
DOIs | |
Publication status | Published - Dec 2002 |
Event | 2nd International Conference on 3G Mobile Communication Technologies - London, United Kingdom Duration: 1 Mar 2001 → … |
Publication series
Name | Proceedings of the International Conference on 3G Mobile Communication Technologies |
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Publisher | IEEE |
ISSN (Print) | 0537-9989 |
Conference
Conference | 2nd International Conference on 3G Mobile Communication Technologies |
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Country | United Kingdom |
City | London |
Period | 1/03/01 → … |
Bibliographical note
Rose publication type: Conference contributionSponsorship: 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