A statistical simulation model for the directional mobile radio channel and its configuration

Currently new base station concepts are under investigation that take advantage of the directionality of the mobile radio channel either by utilizing antenna beam diversity or adaptive array reception techniques. Unfortunately, the Gaussian (wide sense) stationary uncorrelated scattering (GWSSUS) simulation concept which is most wide-spread adopted in fading simulators neglects any directional anisotropy of the propagation mechanism. In this paper a directional channel simulation model is introduced which is an extension to GWSSUS. Due to its relatively low structural complexity, this directional Gaussian scattering (DGS) concept is applicable not only to soft- but also to hardware fading simulators. The most important advantage of the DGS simulator is that it can easily be configured to match the properties of real-world propagation scenarios. This is achieved based on the information available from echo estimation, a method which recently was introduced for configuring statistical GWSSUS channel models directly from the results of wide-band channel sounding.