In this paper, a novel design of a Uniform Circular Array Massive-Multiple Input Multiple Output (UCA-
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(3-D) channel pattern is established and estimated, where channel orthogonality of multipolarized/unipolarized
UCA-mMIMO systems is analyzed. Multipolarized and unipolarized systems are evaluated to decrease channel
orthogonality. The Azimuth Angle of Arrival (AAoA) and Elevation Angle of Arrival (EAoA), as well as antenna
spacing and cross-polarization discrimination, are taken into consideration. Using Monte Carlo simulation
method, the results show that the multipolarized UCA-mMIMO system provides a better performance compared
to the unipolarized UCA-mMIMO system in different situations. The proposed design is homely to be realized in
real environment in conformance to the parameters analyzed; in order to confirm that it will be a very good
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