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

Ma, Lei; Guan, Ke; Yan, Dong; He, Danping; Leonor, Nuno; Ai, Bo; Kim, Junhyeong

doi:10.1029/2019rs006995

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…It can track rays, such as direct, reflected, and scattered rays, using various means of propagation, and can make multiple measurements in the sub-6 GHz and terahertz (THz) band to verify and quantify the results of these tracking. In addition, users have the ability to construct their own channel in relation to the environment by rebuilding the 3D scenario model and setting simulation parameters (such as the frequency and antenna layout) [31], [32], [33], [34].…”

Section: Ray Optics Simulationmentioning

confidence: 99%

Wave Propagation Modeling Techniques in Tunnel Environments: A Survey

et al. 2023

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The prediction of radio signal transmission in tunnels is important for wireless communication link design as it enables the delivery of optimum power to the intended receiver inside the tunnel. Several techniques have been proposed to estimate path loss for wireless communication inside tunnels. The radio coverage range and where base stations need to be installed can be figured out with the help of propagation models. At the time of developing these models, modeling complexity and environmental attributes, such as the tunnel geometry and the electrical and magnetic properties of its walls and interior materials are considered. A limited amount of literature currently overviews how waves transmits through tunnels and how electromagnetic wave transmission has recently changed. This survey, which examines current advancements in the propagation of waves in tunnels, aims to address this gap. In this review, thirty wave propagation models were analyzed and grouped into distinct categories for the first time. The detailed specifications of each model were omitted to make the survey easy to comprehend. This comparative research will help service providers adopt an appropriate propagation model and plan efficient transmitter and receiver placement and link management for a specific tunnel environment.INDEX TERMS Artificial neural network, radio wave propagation, ray tracing, scaling, tunnel.

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Section: Ray Optics Simulationmentioning

confidence: 99%

Wave Propagation Modeling Techniques in Tunnel Environments: A Survey

et al. 2023

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“…clear sky, rainy, power arch and etc.). Several historical attempts (Tropical-Land Mobile Satellite Channel) [5] were presented under Ku-band application to provides complete solution architecture in improving the overall link availability under tropical region [6] [7] [8].  Measurement of the actual network response time (network latency and packet loss) for a broadband activity that require minimal delay such as fast paced online-gaming under the OTM system [9].…”

Section: Introductionmentioning

confidence: 99%

On-The-Move Measurement Analysis for Ka-Band High Throughput Satellite and LiFi Communication Networks in Tropical Region

et al. 2021

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⁞ABSTRACT With the point in evaluating the performance of the On-the-Move (OTM) Satellite Communication and Light Fidelity (SatCom-LiFi), an extensive study of measurement has been conducted to give a wide vision of the SatCom-LiFi potential under a tropical region. As the interest for OTM network connectivity to offload the C-band capacity arises due to frequency spectrum scarcity, satellite networks offer to balance topographical requirements under tropical environment as the Next Generation Networks (NGN) trend for OTM communication system solutions. To date, mobile satellite terminal propagation model was carried out at temperate regions where further experimental measurement is needed under the OTM scenario in tropical region. This paper discusses on the areas where there are limited real-time data under the OTM scenario (e.g. rain attenuation, power arch) at Ka-band frequency. Integration infers, to be specific, the use of new elements capable in providing performance analysis of all systems involved and to take possible decision, in determining the need for a technically feasible solution. Measurement results reveal that, throughput data rate of 15 Mbps were able to be delivered for more than 80% of the time under the speed of 150 km/h with shielded mesh antenna. In addition to that, this paper reveals the favorable circumstances and inadequacies of OTM network quality, in which the measurement presented plays an important role for future researchers in distinguishing highly accurate predictions.

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