A 3-D Channel Model for High-Speed Railway Communications in Mountain Scenario

2013 ◽  
pp. 1173-1181 ◽  
Author(s):  
Jia Guiyuan ◽  
Wu Muqing ◽  
Zhao Min ◽  
Zhao Ruojun
Keyword(s):  
High Speed ◽  
Channel Model ◽  
High Speed Railway

scholarly journals Broadband Wireless Channel in Composite High-Speed Railway Scenario: Measurements, Simulation, and Analysis

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Jianwen Ding ◽  
Lei Zhang ◽  
Jingya Yang ◽  
Bin Sun ◽  
Jiying Huang
Keyword(s):  
Ray Tracing ◽  
Communication Systems ◽  
High Speed ◽  
Channel Model ◽  
High Reliability ◽  
Rapid Development ◽  
Path Loss ◽  
Wireless Channel ◽  
Delay Spread ◽  
High Speed Railway

The rapid development of high-speed railway (HSR) and train-ground communications with high reliability, safety, and capacity promotes the evolution of railway dedicated mobile communication systems from Global System for Mobile Communications-Railway (GSM-R) to Long Term Evolution-Railway (LTE-R). The main challenges for LTE-R network planning are the rapidly time-varying channel and high mobility, because HSR lines consist of a variety of complex terrains, especially the composite scenarios where tunnels, cuttings, and viaducts are connected together within a short distance. Existing researches mainly focus on the path loss and delay spread for the individual HSR scenarios. In this paper, the broadband measurements are performed using a channel sounder at 950 MHz and 2150 MHz in a typical HSR composite scenario. Based on the measurements, the pivotal characteristics are analyzed for path loss exponent, power delay profile, and tap delay line model. Then, the deterministic channel model in which the 3D ray-tracing algorithm is applied in the composite scenario is presented and validated by the measurement data. Based on the ray-tracing simulations, statistical analysis of channel characteristics in delay and Doppler domain is carried out for the HSR composite scenario. The research results can be useful for radio interface design and optimization of LTE-R system.

scholarly journals Geometry-Based Stochastic Channel Model for High-Speed Railway Communications

2019 ◽  
Vol 68 (5) ◽  
pp. 4353-4366 ◽  
Author(s):  
Lai Zhou ◽  
Fengyu Luan ◽  
Shidong Zhou ◽  
Andreas F. Molisch ◽  
Fredrik Tufvesson
Keyword(s):  
High Speed ◽  
Channel Model ◽  
High Speed Railway

scholarly journals Dynamic Channel Model With Overhead Line Poles for High-Speed Railway Communications

2018 ◽  
Vol 17 (5) ◽  
pp. 903-906 ◽  
Author(s):  
Lai Zhou ◽  
Zhi Yang ◽  
Fengyu Luan ◽  
Andreas F. Molisch ◽  
Fredrik Tufvesson ◽  
...  
Keyword(s):  
High Speed ◽  
Channel Model ◽  
Overhead Line ◽  
High Speed Railway ◽  
Dynamic Channel

A Geometry-Based Stochastic Channel Model for High-Speed Railway Cutting Scenarios

2015 ◽  
Vol 14 ◽  
pp. 851-854 ◽  
Author(s):  
Binghao Chen ◽  
Zhangdui Zhong ◽  
Bo Ai ◽  
David G. Michelson
Keyword(s):  
High Speed ◽  
Channel Model ◽  
High Speed Railway

scholarly journals A Semiempirical MIMO Channel Model in Obstructed Viaduct Scenarios on High-Speed Railway

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Tao Zhou ◽  
Cheng Tao ◽  
Liu Liu ◽  
Zhenhui Tan
Keyword(s):  
High Speed ◽  
Channel Model ◽  
Mimo Systems ◽  
Multiple Input Multiple Output ◽  
Time Correlation ◽  
Time Correlation Function ◽  
Mimo Channel ◽  
High Speed Railway ◽  
Single Input Single Output ◽  
Single Output

A semiempirical multiple-input multiple-output (MIMO) channel model is proposed for high-speed railway (HSR) viaduct scenarios. The proposed MIMO model is based on the combination of realistic single-input single-output (SISO) channel measurement results and a theoretical geometry-based stochastic model (GBSM). Temporal fading characteristics involvingK-factor and Doppler power spectral density (PSD) are derived from the wideband measurement under an obstructed viaduct on Zhengzhou-Xi’an HSR in China. The GBSM composed of a one-ring model and an elliptical model is employed to describe the entire propagation environment. Environment-related parameters in the GBSM are determined by the measured temporal fading properties. And a close agreement is achieved between the model results and measured data. Finally, a deterministic simulation model is established to perform the analysis of the space-time correlation function, the space-Doppler PSD, and the channel capacity for the measured scenario. This model is more realistic and particularly beneficial for the performance evaluation of MIMO systems in HSR environments.

scholarly journals Nonisotropic Scattering Characteristic in an Alternant Tree-Blocked Viaduct Scenario on High-Speed Railway at 2.35 GHz

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Rongchen Sun ◽  
Cheng Tao ◽  
Liu Liu ◽  
Zhenhui Tan ◽  
Lingwen Zhang ◽  
...  
Keyword(s):  
High Speed ◽  
Channel Model ◽  
Radio Channel ◽  
Statistical Characteristics ◽  
Real Field ◽  
Line Of Sight ◽  
Angle Of Arrival ◽  
High Speed Railway ◽  
Scattering Characteristic ◽  
Nonisotropic Scattering

This paper presents the nonisotropic scattering characteristic of the mobile radio channel in an alternant tree-blocked viaduct scenario on high-speed railway (HSR) by real field measuring at 2.35 GHz. An angle of arrival (AOA) probability density function (PDF) is proposed for the nonuniform AOA at the mobile caused by stochastically distributed scatterers. Two Von Mises angular distributions with broad applicability are used to represent the line of sight (LOS) component and part of the scattering component in the AOA model. Based on such a PDF statistical characteristics of Ricean factor,κ, and AOA of the scattering component are modeled in LOS and obstructed line of sight (OLOS) cases, respectively. The results may give a meaningful and accurate channel model and could be utilized in HSR viaduct scenario evaluation.

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