Measurement-Based Multiple-Scattering Model of Small-Scale Fading in High-Speed Railway Cutting Scenarios

被引：12

作者：

Zhang, Bei ^{[1
]}

Zhong, Zhangdui ^{[1
]}

He, Ruisi ^{[1
]}

Tufvesson, Fredrik ^{[2
]}

Ai, Bo ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China

[2] Lund Univ, Dept Elect & Informat Technol, S-22100 Lund, Sweden

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Cutting; high-speed railway (HSR); multiple scattering channel model; small-scale fading (SSF); PROPAGATION MEASUREMENTS;

D O I：

10.1109/LAWP.2016.2626303

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：

In this letter, the fading statistics of wireless channels in high-speed railway cutting scenarios are characterized based on measurements. A multiple scattering model called second-order scattering fading (SOSF) is used to model the small-scale fading considering the influence of cuttings and bridges. The SOSF model can offer the possibility of analytical estimation for different fading severities via a simple moment-based estimator. It is demonstrated that Ricean fading is the dominant fading distribution in cutting scenarios, but deep fades also occur. The fading process is therefore described by a hidden Markov model, which is validated statistically by measurement data.

引用

页码：1427 / 1430

页数：4

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