Capacity of MIMO systems based on measured wireless channels

Authors:
A. F. Molisch;M. Steinbauer;M. Toeltsch;E. Bonek;R. S. Thoma
Affiliations:
Inst. fur Nachrichtentech. und Hochfrequenztech., Technische Univ. Wien;-;-;-;-
Venue:
IEEE Journal on Selected Areas in Communications
Year:
2006

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Abstract

We measure the capacity of multiple-input multiple-output radio systems in microcellular environments. We use a new data evaluation method that allows to evaluate the cumulative distribution function of the capacity from a single measurement. This method is based on an extraction of the parameters of the multipath components and, thereafter, a synthetic variation of their phases. In the analyzed environments, we find capacities to be about 30% smaller than would be anticipated from an idealized model. In addition, the frequency selectivity of the channel makes the CDF of the capacity steeper and, thus, increases the outage capacity, compared with the frequency-flat case, but the influence on the mean capacity is small