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Type: Journal article
Title: Analysis of millimetre-wave polarization diverse multiple-input multiple-output capacity
Author: Lawrence, N.
Ng, B.
Hansen, H.
Abbott, D.
Citation: Royal Society Open Science, 2015; 2(12):150322-1-150322-15
Publisher: Royal Society Publishing
Issue Date: 2015
ISSN: 2054-5703
Statement of
Nicholas P. Lawrence, Brian W.-H.Ng, Hedley J. Hansen, and Derek Abbott
Abstract: Millimetre-waves offer the possibility of wide bandwidth and consequently high data rate for wireless communications. For both uni- and dual-polarized systems, signals sent over a link may suffer severe degradation due to antenna misalignment. Orientation robustness may be enhanced by the use of mutual orthogonality in three dimensions. Multiple-input multiple-output polarization diversity offers a way of improving signal reception without the limitations associated with spatial diversity. Scattering effects often assist propagation through multipath. However, high path loss at millimetre-wave frequencies may limit any reception enhancement through scattering. We show that the inclusion of a third orthogonal dipole provides orientation robustness in this setting, as well as in a rich scattering environment, by means of a Rician fading channel model covering all orientations for a millimetre-wave, tri-orthogonal, half-wave dipole transmitter and receiver employing polarization diversity. Our simulation extends the analysis into three dimensions, fully exploiting individual sub-channel paths. In both the presence and absence of multipath effects, capacity is observed to be higher than that of a dual-polarized system over the majority of a field of view.
Keywords: microwaves
Rights: © 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License, which permits unrestricted use, provided the original author and source are credited.
DOI: 10.1098/rsos.150322
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