Elevation angle research in three-dimension channel model using ray-tracing

By adopting elevation domain beamforming and spatial domain multiplexing, 3 Dimensional (3D) Multiple Input and Multiple Output (MIMO) antenna system is the key technology in providing high throughput in modern communication systems. However, the conventional channel modeling method mainly focuses on 2 dimensional (2D) MIMO channels which neglect the vertical plane. It inspires scholars to do research on the characteristics of 3D channel models´ elevation parameters. In this paper, we propose an automatic measurement approach for 3D MIMO channel by using ray-tracing algorithm. This method delivers the characteristics of the elevation angle for low-rise floors in Outdoor to Indoor (O2I) scenario, which have accurately matched the classical experimental results. In addition, further investigation for high-rise floors is successfully made by this proposed methodology as well.