共 14 条
A novel propagation modeling for microcellular communications in urban environments
被引:14
作者:
Jan, SC
Jeng, SK
机构:
[1] Department of Electrical Engineering, National Taiwan University, Taipei
关键词:
propagation model;
ray tracing;
D O I:
10.1109/25.653075
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
A novel method for microcellular communications to predict propagation characteristics is presented in this paper, It takes into account multiple reflections among walls, ground, vehicles, as well as the transmission/reflection due to groups of trees, Although these are three-dimensional (3-D) problems, we can combine two dimensional (2-D) ray tracing and simple 3-D geometric considerations to solve them in a very efficient way. We have investigated the propagation loss versus size, number, and locations of vehicles and groups of trees on a safe island, our results show that the radio wave propagation exhibits severe fast fading, attenuation, and blockage due to reflection, transmission, and shadowing, respectively.
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页码:1021 / 1026
页数:6
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