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Spatial decomposition of MIMO wireless channels
Abhayapala, T.D.; Pollock, T.S.; Kennedy, R.A.;
Signal Processing and Its Applications, 2003. Proceedings. Seventh International Symposium on
Volume 1,
1-4 July 2003
Page(s):309
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312 vol.1
Abstract:
In this paper a novel decomposition of spatial channels is developed to provide insight into spatial aspects of multiple antenna communication systems. The underlying physics of the free space propagation is used to model the channel in scatterer free regions around the transmitter and the receiver, and the rest of the complex scattering media is represented by a parametric model. The channel matrix is separated into a product of known and random matrices where the known portion shows the effects of the physical configuration of antenna elements. We use the model to show the intrinsic degrees of freedom in a multiantenna system. Potential applications of the model are briefly discussed.
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