Abstract
This letter discusses generating three-dimensional (3-D) spatial channel models with emphasis on the angular sampling methods. Three angular sampling methods-i.e., modified uniform power sampling, modified uniform angular sampling, and random pairing methods-are proposed and investigated in detail. The random pairing method, which uses only 20 sinusoids in the ray-based model for generating the channels, presents good results if the spatial channel cluster is with a small elevation angle spread. For spatial clusters with large elevation angle spreads, however, the random pairing method would fail, and the other two methods should be considered.
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