Abstract
A hybrid spatio-temporal radio channel model is presented for mi-crocellular systems in urban environment. The hybrid model combines a de-terministic model with a statistical model. The former model employs a site-specific model to describe the direct wave, ground-reflected wave, and the field scattered from the street walls. The latter one employs a statistical approach to estimate the scattered fields due to randomly positioned scatterers in the streets. By comparing the computed r.m.s. delay spread and r.m.s. angle spread with the measured ones, the hybrid model has been proved to be an effective and accurate spatio-temporal channel model.
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