Abstract—The integration of wideband and multiple-inputmultiple-output (MIMO) radio technologies represents apowerful tool for different wireless communicationstandards. In the test process of these systems, newstrategies for MIMO channel modelling andcharacterisation are necessary in order to investigate howthe frequency band and the bandwidth affect the systemperformance. In this paper, a MIMO channel experimentalcharacterisation based on full spatial correlation (FSC)MIMO matrices estimated from frequency domainmeasurements is presented. Measurements performedbetween 2 and 12 GHz in a stationary office scenario in bothline-of-sight (LOS) and non-line-of-sight (NLOS) conditionsare considered. Results show frequency dependency on theexperimental MIMO channel characteristics under a highSNR regime, equal electric separation between arrayelements and isolation of the path loss effect. The ergodicand 1% outage capacities were reduced while the centralfrequency increases for different array configurations.Remarkable changes on the magnitude of the spatialcorrelation coefficients and on the MIMO systemeigenvalues were observed for different band frequencies.
 
Index Terms—capacity, eigenvalues, full spatial correlationmatrix, mobile radio channels, Multiple-Input Multiple-Output, space-time communications, spatial correlation

Cite: Alexis P. García A. and Lorenzo Rubio, "Frequency Dependent Indoor MIMO Channel Characterisation between 2 and 12 GHz Based on Full Spatial Correlation Matrices," Journal of Communications, vol. 3, no.4, September, pp. 8-15, 2008.