Geometrically based channel model for indoor radio propagation with directional antennas

被引:6
作者
Chen Y. [1 ]
Zhang Z. [1 ]
Qin T. [1 ]
机构
[1] School of Computer, Electronics and Information, Guangxi University
来源
Progress In Electromagnetics Research B | 2010年 / 20期
关键词
Heuristic methods - Radio waves - Directive antennas - Wave propagation;
D O I
10.2528/PIERB10022205
中图分类号
O4 [物理学];
学科分类号
070305 [高分子化学与物理];
摘要
A geometrically based channel model is proposed to describe radio propagation in an indoor environment with directional antennas. In conventional geometric channel models (GCMs), distribution of scatterers does not take into account the antenna properties. A different approach is taken here for directional channel modeling. The locations of scattering objects are defined using non-Cartesian coordinates comprising an auxiliary geometric parameter ρ and angle-of-arrival (AOA) φ. Subsequently, we present a systematic method to study the influence of antenna pattern on scatterer distribution by applying two heuristic rules, which underpin the connection between the physical wave-propagation process and its canonical GCM. Provided with model preliminaries, important channel parameters including power azimuthal spectrum (PAS), power delay spectrum (PDS), mean effective gain (MEG), and antenna-decoupled PAS are derived and compared against the published data in the existing literature to demonstrate the usefulness of the proposed model.
引用
收藏
页码:109 / 124
页数:15
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