A Wideband Space-Time MIMO Channel Simulator Based on the Geometrical One-Ring Model

In this paper, we extend the geometrical one-ring multi-input multi-output (MIMO) channel model with respect to frequency-selectivity. Our approach enables the design of efficient and accurate simulation models for wideband space-time MIMO channels under isotropic scattering conditions. Two methods will be provided to compute the parameters of the simulation model. Especially, the space, time, and frequency correlation properties of the proposed wideband space-time MIMO channel simulator are studied analytically. It is shown that any given discrete or continuous power delay profile (PDP) can be incorporated in the simulation model. The high accuracy of the simulation model is demonstrated by comparing its statistical properties with those of the underlying reference model. Our procedure provides an important framework for developers of future wideband mobile communication systems to test and to verify new high data rate transmission concepts employing, e.g., space-time coded MIMO orthogonal frequency division multiplexing (OFDM) techniques.