Impact of Antenna Characteristic on MIMO Channel Spatial Correlation
Received date: 2015-07-01
Revised date: 2015-12-03
Online published: 2016-05-30
In view of the influence of physical characteristics of an antenna on spatial correlation of a MIMO channel, this paper establishes a MIMO channel model including both coupling and polarization by analyzing and modeling the mechanism of mutual coupling and antenna polarization. Based on this model, a theoretical expression of spatial correlation for the MIMO channel model is derived, and applied to 3GPP SCM standard channel propagation. Simulation results show that the mutual coupling effect becomes significant as the antenna spacing decreases, and the polarization factor varies due to different polarization angle combinations. Moreover, both mutual coupling and polarization can reduce spatial correlation to some degree, but they cannot improve system capacity.
XUE Cui-wei, ZHU Qiu-ming, CHEN Xiao-min, LIAO Zhi-zhong, LIU Xing-lin . Impact of Antenna Characteristic on MIMO Channel Spatial Correlation[J]. Journal of Applied Sciences, 2016 , 34(3) : 251 -262 . DOI: 10.3969/j.issn.0255-8297.2016.03.002
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