Three-Dimensional Multipath Shape Factors for Spatial Modeling of Wireless Channels

被引：13
|
作者：
Valchev, Dimitar G. [1 ]
Brady, David [1 ]
机构：
[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2009年 / 8卷 / 11期
关键词：
Fading channels; mobile communications; multipath channels; propagation; scattering; MOBILE; PROPAGATION;
D O I：
10.1109/TWC.2009.080988
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：
This paper develops a generalized theory of multipath shape factors used to study the small-scale fading statistics in three-dimensional non-omnidirectional multipath channels. Previous results for horizontal propagation channels are special cases of the present framework when the multipath angular power density (APD) and the travel direction of the mobile unit are confined to a plane. The three-dimensional multipath shape factors are derived in terms of the first three degrees of unnormalized spherical harmonics of the APD. Based on the so derived shape factors, analytical expressions for the level crossing rate, average fade duration and approximate envelope correlation are derived for a Rayleigh fading three-dimensional channel.
引用
收藏
页码：5542 / 5551
页数：10
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