Frequency scaling of spatial correlation from co-located 2.4 and 5.2 GHz wideband indoor MIMO channel measurements

Multiple-input multiple-output (MIMO) spatial correlation functions for co-located measurements at 2.4 and 5.2 GHz using 8-element linear arrays are compared. A single-parameter exponential model for the magnitude correlation coefficient provides a good fit, with an average mean squared error of 0.019. Results demonstrate that a linear model can describe the dependence of decorrelation at the two frequencies.