Spatial channel characteristics in outdoor environments and their impact on BS antenna system performance
- 27 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 719-723 vol.2
- https://doi.org/10.1109/vetec.1998.683676
Abstract
This paper present measurement results obtained with a testbed equipped with an array antenna. The investigations focus on the power azimuth spectrum of the channel in urban and rural areas, for various base station antenna heights. The power azimuth spectrum is well modeled with a Laplacian function. The local azimuth spread is found to range from 1/spl deg/ to 25/spl deg/ depending on the environment and antenna height. The azimuth spread significantly increases as the antenna height is reduced. An analytical expression for the spatial correlation function is derived based on the Laplacian model. Finally, the power azimuth spectrums impact on a conventional beamformer ability to suppress interfering users is investigated.Keywords
This publication has 13 references indexed in Scilit:
- Geometrically based statistical channel model for macrocellular mobile environmentsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A geometrically based model for line-of-sight multipath radio channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- High resolution of electromagnetic waves in time-varying radio channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Angular dispersive mobile radio environments sensed by highly directive base station antennasPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Power azimuth spectrum in outdoor environmentsElectronics Letters, 1997
- Beamforming: a versatile approach to spatial filteringIEEE ASSP Magazine, 1988
- Crosscorrelation between the envelopes of 900 MHz signals received at a mobile radio base station siteIEE Proceedings F Communications, Radar and Signal Processing, 1986
- Effects on Correlation Between Two Mobile Radio Base-Station AntennasIEEE Transactions on Communications, 1973
- A comparison of specific space diversity techniques for reduction of fast fading in UHF mobile radio systemsIEEE Transactions on Vehicular Technology, 1971
- Characterization of Randomly Time-Variant Linear ChannelsIEEE Transactions on Communications, 1963