A generic channel model in multi-cluster environments

We present a new method of defining spatio-temporal clusters using geometric modeling approach, which simulate the phenomenon that has a geometric analog. Various clusters are given different shapes or forms to scatterer distributions based on their logical appeal to certain radio environments. This classification methodology is based on the semi-geometrically-based statistical model developed in this paper. We then derive the analytical expressions of power azimuthal spectrum, power delay spectrum and cluster power using the generic model. Armed with the model preliminaries, we further parameterize some important geometric clusters, which reproduce the significant effects of typical scattering environments. The modeling approach presented in this paper is useful for system-level simulation and performance evaluation.