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Capability of 3-D Ray Tracing for Defining Parameter Sets for the Specification of Future Mobile Communications Systems

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4 Author(s)
Fugen, T. ; Inst. fur Hochstfrequenztechnik und Elektron., Karlsruhe Univ. ; Maurer, J. ; Kayser, T. ; Wiesbeck, W.

Three-dimensional (3-D) ray tracing has advanced to such a degree that it can provide channel parameters like delay spread, Doppler spread, angular spread, and distribution functions of long- and short-term fading with high accuracy for fixed to mobile and mobile to mobile communications. These parameters are absolutely required during the specification phase of future mobile communications systems in order to define the air interface and a variety of other relevant system parameters. This paper describes state-of-the-art ray tracing capabilities. A 3-D ray tracing model developed at the Universitaumlt Karlsruhe is presented. Important characteristic channel parameters are briefly discussed. Based on these parameters the model is verified by wideband nondirectional and directional measurements at 2 and 5.2 GHz, respectively, showing a good agreement. The proposed 3-D ray tracing model can therefore be used in order to extract parameter sets for the specification of future mobile communications systems and to optimize existing ones

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Antennas and Propagation, IEEE Transactions on  (Volume:54 ,  Issue: 11 )