A novel Full-Three-Dimensional MIMO Mobile-to-Mobile channel reference model

Analysis and design of multi-element antenna systems in mobile fading channels require a model for the space-time cross-correlation among the links of the underlying multiple-input multiple-output (MIMO) Mobile-to-Mobile (M-to-M) communication channel. In this paper, based on the modified geometrical two-ring (MGTR), a full-three-dimensional (3-D) MIMO channel reference model for M-to-M communication systems is proposed. In the proposed method named the geometrical single-bounce two-sphere (SBTS) model, both transmitter and receiver are moving components. Assuming 3-D non-isotropic and single-bounce scattering model, a closed-form expression for the space-time cross-correlation function (CCF) between each two sub channels is derived where includes many existing correlation models as special cases. Some simulation results are presented as special cases of the derived CCF.