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In this paper, an optimization of 3D ray tracing for wideband multiple-input multiple-output (MIMO) indoor channel is presented. First, the evolution of the predicted wideband parameters with the number and type of interactions of the simulated channel is analyzed and the relevant phenomena to take into account during simulations are specified. Then, and for a better performance of 3D ray tracing,...
In this paper, an efficient approach to model the diffuse scattering in the ultra wide band (UWB) indoor channel is presented. It extends 3D ray tracing by associating a scattering cluster with each interaction point of the ray. The scattering clusters were defined by examining the simulated responses of each object while taking into account its surfaces roughness or small details. The comparisons...
In this paper, measurements and 3D ray tracing predictions of multiple input multiple output (MIMO) ultra wideband (UWB) channel parameters in a residential area are presented. The studied UWB channel parameters, i.e. the delay spread and the azimuth and elevation angular spreads, are absolutely required in propagation modeling during the specification phase of future mobile MIMO communications systems...
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