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The impact of fixed and moving scatterers on the statistics of MIMO vehicle-to-vehicle channels

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©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Article also available from publisher: http://dx.doi.org/10.1109/VETECS.2009.5073879 In this paper, we study the impact of fixed and moving clusters of scatterers on the statistics of multiple- input multiple-output (MIMO) vehicle-to-vehicle (V2V) channels. Double-bounce scattering is assumed for fixed scatterers, while single-bounce scattering is considered for moving scatterers. Starting from the geometrical street model, an analytical expression is derived for the channel gain taking into account the contributions of fixed and moving scatterers in a multiple-cluster scattering scenario. The statistical properties of the proposed channel model are studied. Analytical solutions are provided for the three-dimensional (3D) space-time cross-correlation function (CCF), the 2D space CCF, and the temporal autocorrelation function (ACF). All theoretical results are validated by simulations.