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This letter derives and analyzes the spatial correlation based on a physically intuitional stochastic channel model for multiple-input-multiple-output (MIMO) systems using polarized and isolated antenna arrays. Simulations for a 2 times 2 MIMO system were performed using dipole antennas with various configurations to investigate the effects of polarization, pattern of elements, and cross-polarization discrimination (XPD) on the spatial correlation. Results show that the correlation is very sensitive to the orthogonality of pattern and polarization. Furthermore, XPD slightly affects the spatial correlation.
Antennas and Wireless Propagation Letters, IEEE (Volume:8 )
Date of Publication: 2009