High Resolution Spatiotemporal Characterization of Electric Field Polarization for Indoor Wireless Environments

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Title: High Resolution Spatiotemporal Characterization of Electric Field Polarization for Indoor Wireless Environments
Authors: Gurrieri, Luis E.
Squires, C.
Noghanian, S.
Willink, T.
Date: 2006
Abstract: The effects of the electric field polarization on the received power are investigated based on high resolution measurements of the indoor wireless channel. The results presented here were obtained using a channel sounding testbed, which was specially designed to study the radio propagation in the 5-6 GHz frequency band with high resolution in terms of angle-of-arrival (AOA) and time-of-arrival (TOA). Measurements were made at different indoor locations and the influence of the receiver surroundings on polarization cross-coupling was analyzed as a function of the azimuthal and elevation AOA. Significant cross-coupling was measured in locations where multi-paths arrive with oblique AOA with respect to the horizontal plane (thetas=90deg). The cross-polarization was characterized with high resolution in azimuth and elevation, which enabled the study of the spatial distribution of depolarized multipaths. The amount of power due to cross-polarized multipaths was estimated for a vertically polarized transmitter antenna located in different indoor environments. The advantages of using multi-element antennas and polarization diversity were made evident, as well as the importance of the relative location of transmitter and receiver and the 3-D distribution of the nearest scatterers.
URL: http://hdl.handle.net/10393/19658
DOI: 10.1109/CCECE.2006.277655
CollectionScience informatique et génie électrique // Electrical Engineering and Computer Science
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