Towards Realistic High-Speed Train Channels at 5G Millimeter-Wave Band—Part II: Case Study for Paradigm Implementation

Guan, Ke; Ai, Bo; Peng, Bile; He, Danping; Li, Guangkai; Yang, Jingya; Zhang, Zhong; Kürner, Thomas

doi:10.1109/tvt.2018.2865530

Cited by 66 publications

(32 citation statements)

References 36 publications

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“…As a deterministic modeling method, RT simulations can provide full information of multipath effects in multiple domains and build accurate site‐specific channel models. It has been successfully used for different applications (Cai et al, , ; Chen et al, ; Fan et al, , ; Guan et al, ; Zhou et al, ). The RT simulator employed in this study, CloudRT, is jointly developed by Beijing Jiaotong University and Technische Universität Braunschweig.…”

Section: Railway Environment Reconstruction and Simulation Setupmentioning

confidence: 99%

Satellite‐Terrestrial Channel Characterization in High‐Speed Railway Environment at 22.6 GHz

Guan

Yan

et al. 2020

Radio Science

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The integration of satellite and terrestrial communication systems plays a vital role in the fifth‐generation mobile communication system (5G) for the ubiquitous coverage, reliable service, and flexible networking. Moreover, the millimeter wave (mmWave) communication with large bandwidth is a key enabler for 5G intelligent rail transportation. In this paper, the satellite‐terrestrial channel at 22.6 GHz is characterized for a typical high‐speed railway (HSR) environment. The three‐dimensional model of the railway scenario is reconstructed and imported into the Cloud Ray‐Tracing (CloudRT) simulation platform. Based on extensive ray‐tracing simulations, the channel for the terrestrial HSR system and the satellite‐terrestrial system with two weather conditions are characterized, and the interference between them are evaluated. The results of this paper can help for the design and evaluation for the satellite‐terrestrial communication system enabling future intelligent rail transportation.

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Section: Railway Environment Reconstruction and Simulation Setupmentioning

confidence: 99%

Satellite‐Terrestrial Channel Characterization in High‐Speed Railway Environment at 22.6 GHz

Guan

Yan

et al. 2020

Radio Science

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“…The developed process for the RT simulator is shown in Figure 1. The key step is the measurement of radio propagation mechanism: based on the theory of radio propagation and radar, the electromagnetic (EM) characteristics of HST materials can be modeled through the numerical calculation, to build the material library (Guan et al, 2018b). The EM simulation software models the transceiver antennas and enter them into the antenna library.…”

Section: Ray Tracing Simulator and Validationmentioning

confidence: 99%

Multidimensional Channel Characteristics Analysis in High‐Speed Train Scenarios

Zhi-gang

Yang

et al. 2020

Radio Science

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LTE for Railways (LTE-R) is a next-generation communication network dedicated to railway services, enabling high-speed, reliable, and intelligent communications to ensure safety and efficiency for rail passengers. The wireless channel between the train and the ground is a key challenge in network design and optimization. The high-speed train (HST) and its surrounding scenarios bring nonstationarity and unique radio propagation characteristics to the HST channel. A comprehensive and in-depth analysis of channel characteristics is the basis of channel modeling. In this paper, based on the measurement-validation ray tracing (RT) simulator, the quasi-stationary intervals are presented first to reasonably quantify channel statistical parameters. Next, the time-varying multidimensional spectra of the channels in three typical HST scenarios are shown, including the power delay profile (PDP), the arrival/departure angular spectrum, and the Doppler spectrum. Moreover, the corresponding channel characteristic parameters are extracted, such as the root-mean-square (RMS) delay spread, angular spread, and Doppler spread. Based on multidimensional channel characteristic analysis, combined with multipath geometric parameters provided by RT, we extract significant scatterers and mine key physical factors that affect radio propagation in HST scenarios. This work lays a solid foundation for accurate time-varying HST channel modeling.

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“…e involved material parameters are summarized in Table 2, where ε r ′ is the real part of the relative permittivity, tan δ is the loss tangent, and S and α are the scattering coefficient and scattering exponent of the directive scattering model [36]. Particularly, the parameters of wood are calibrated in [37,38], and the parameters of concrete are calibrated in [39]. erefore, with the provided calibrated material parameters, various V2I Tx/Rx deployments can be simulated by an RT simulator.…”

Section: Rt Simulation Configurationmentioning

confidence: 99%

Vehicular Channel in Urban Environments at 23 GHz for Flexible Access Common Spectrum Application

Wang

Yang

et al. 2019

International Journal of Antennas and Propagation

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With the development of the vehicular network, new radio technologies have been in the spotlight for maximizing the utilization of the limited radio spectrum resource while accommodating the increasing amount of services and applications in the wireless mobile networks. New spectrum policies based on dynamic spectrum access technology such as flexible access common spectrum (FACS) have been adopted by the Korea Communications Commission (KCC). 23 GHz bands have been allocated to FACS bands by the KCC, which is expected extensively for vehicular communications. e comprehensive knowledge on the radio channel is essential to effectively support the design, simulation, and development of such radio technologies. In this paper, the characteristics of 23 GHz vehicle-to-infrastructure (V2I) channels are simulated and extracted for the urban environment in Seoul. e path loss, shadow factor, Ricean K-factor, root-mean-square (RMS) delay spread, and angular spreads are characterized from the calibrated ray-tracing simulation results, and it can help researchers have a better understanding of the propagation channel for designing vehicular radio technologies and a communication system in a similar environment.

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Towards Realistic High-Speed Train Channels at 5G Millimeter-Wave Band—Part II: Case Study for Paradigm Implementation

Cited by 66 publications

References 36 publications

Satellite‐Terrestrial Channel Characterization in High‐Speed Railway Environment at 22.6 GHz

Satellite‐Terrestrial Channel Characterization in High‐Speed Railway Environment at 22.6 GHz

Multidimensional Channel Characteristics Analysis in High‐Speed Train Scenarios

Vehicular Channel in Urban Environments at 23 GHz for Flexible Access Common Spectrum Application

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