Generalised clarke model for mobile-radio reception
Iqbal, R.; Abhayapala, T.D.; Lamahewa, T.A.
Communications, IET
Volume 3, Issue 4, April 2009 Page(s):644 - 654
Digital Object Identifier   10.1049/iet-com.2008.0054
Summary:Clarke's classical model of mobile-radio reception assumes isotropic-rich scattering around the mobile receiver antenna. The assumption of isotropic scattering is valid only in limited circumstances. Here, a generalised Clarke model is developed, which is applicable to mobile-radio reception in general scattering environments. The authors give expressions for the autocorrelation and power spectral density of the channel fading process and demonstrate the generality of the model by applying it to different non-isotropic scattering scenarios. Using the generalised model, the effect of mobile direction of travel and the non-isotropicity on the statistics of the channel fading process is analysed. It is also shown that if the mobile direction of travel is equiprobable in all directions, a non-isotropic scattering environment on average is as good as an isotropic scattering environment.

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