Impact of Different Parameters on Channel Characteristics in a High-Speed Train Ray Tracing Tunnel Channel Model

2017 ◽  
Author(s):  
Yapei Zhang ◽  
Yu Liu ◽  
Jian Sun ◽  
Cheng-Xiang Wang ◽  
Xiaohu Ge
Keyword(s):  
Ray Tracing ◽  
High Speed ◽  
Channel Model ◽  
High Speed Train ◽  
Channel Characteristics ◽  
Tunnel Channel

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.

A Geometry-Based Stochastic Channel Model for the Millimeter-Wave Band in a 3GPP High-Speed Train Scenario

2018 ◽  
Vol 67 (5) ◽  
pp. 3853-3865 ◽  
Author(s):  
Jingya Yang ◽  
Bo Ai ◽  
Ke Guan ◽  
Danping He ◽  
Xue Lin ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
High Speed ◽  
Channel Model ◽  
Wave Band ◽  
High Speed Train ◽  
Millimeter Wave Band

3D Non-Stationary Wideband Tunnel Channel Models for 5G High-Speed Train Wireless Communications

2020 ◽  
Vol 21 (1) ◽  
pp. 259-272 ◽  
Author(s):  
Yu Liu ◽  
Cheng-Xiang Wang ◽  
Carlos F. Lopez ◽  
George Goussetis ◽  
Yang Yang ◽  
...  
Keyword(s):  
Wireless Communications ◽  
High Speed ◽  
High Speed Train ◽  
Channel Models ◽  
Tunnel Channel

Simulation and Analysis of Scattering Channel Models in Three-Dimensional High-Speed Mobile Environment

2016 ◽  
Vol 13 (10) ◽  
pp. 6947-6955
Author(s):  
Xin Chen ◽  
Yong Fang
Keyword(s):  
High Speed ◽  
Channel Model ◽  
Three Dimensional ◽  
Mobile Terminal ◽  
Wireless Channel ◽  
Mobile Environment ◽  
Channel Models ◽  
Channel Characteristics ◽  
Channel Realization ◽  
Doppler Power

A three-dimensional (3D) statistic channel model based on scattering characteristics is proposed to describe accurately the wireless channel under the scenarios of high-speed train (HST). This paper derives scattering density distribution function and scattering coefficient to represent the channel impulse response (CIR) of HST communication system, and deduces closed expressions of Doppler power spectrum (DPS) of mobile terminal. Expressions are also provided for categorizing and quantizing the scattering characteristics of wireless channels. By analyzing the Doppler spread of HST and comparing the effects of scattering environment and mobile velocity on DPS, these works contribute to understand deeply the wireless scattering channel of HST. Numerical and simulation results demonstrate that the proposed scattering channel models can effectively depict the physical characteristics of HST wireless channel, which provide a reliable method to analyze and estimate channel parameters. Moreover, the channel realization in this paper is more straightforward and concise to study the scattering channel characteristics, which can also be utilized as a reference for experimental measurement campaigns and reducing the modeling errors of scattering channel model effectively.

An Efficient MIMO Channel Model for LTE-R Network in High-Speed Train Environment

2019 ◽  
Vol 68 (4) ◽  
pp. 3189-3200 ◽  
Author(s):  
Jingya Yang ◽  
Bo Ai ◽  
Sana Salous ◽  
Ke Guan ◽  
Danping He ◽  
...  
Keyword(s):  
High Speed ◽  
Channel Model ◽  
Mimo Channel ◽  
High Speed Train

scholarly journals Channel Characteristics of High-Speed Railway Station Based on Ray-Tracing Simulation at 5G mmWave Band

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Lei Xiong ◽  
Haiyang Miao ◽  
Bo Ai ◽  
Tutun Juhana ◽  
Adit Kurniawan
Keyword(s):  
Ray Tracing ◽  
Antenna Arrays ◽  
High Speed ◽  
Wireless Channel ◽  
Delay Spread ◽  
Shadow Fading ◽  
Railway Station ◽  
High Speed Railway ◽  
Channel Characteristics ◽  
Ray Tracing Simulation

In order to satisfy the increasing demand for the higher transmission capacity of “smart station”, millimeter wave (mmWave) technology is expected to play a significant role in the high data rate communication system. Based on the ray-tracing simulation technology, this paper would study wireless channel characteristics of the three-dimensional (3D) model of high-speed railway station at the mmWave band. Key parameters such as path loss exponent, shadow fading factor, delay spread, Rician K-factor, angular spread, power angle spectrum, and spatial correlation are extracted and investigated. These channel characteristics are of value for the selection of antenna arrays and even the design of future 5G communication networks in the railway environment.

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