Characterization of 3D Elliptical Spatial Channel Model for MIMO Mobile-to-Mobile Communication Environment

摘要

In this paper, we develop three dimensional (3D) elliptical cylindrical geometrical channel model for multiple-input-multiple-output mobile-to-mobile communication environments. It is assumed that both the mobile nodes are surrounded by uniformly distributed infinite number of scatterers sprinkled over the surfaces of an elliptical-based cylindrical shapes. The mobile nodes are located at the centers of the bottom surfaces of elliptical cylinders and both the mobile nodes are equipped with low-elevated multiple antenna arrays. The proposed model is designed for urban areas, where mostly the mobile subscribers reside and are on the move. This model takes into account the effect of multiple antenna array attributes, roadside infrastructure, the dimensions of the propagation medium, transmit-receiver distance and the velocity of mobile nodes. Using the proposed channel model, expressions for the joint and marginal cross correlation functions are derived for non-isotropic scattering environments. The derived expression are simulated for various parameters to verify their effect on the antenna correlations. The obtained correlation graph is compared with measured data that confirms a close agreement with it. Finally, by changing various parameters of the proposed channel model, some existing 2D and 3D channel models are deduced.