高速列车室内外无线信道极化特性分析

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-03-04 DOI:10.1109/LCOMM.2025.3547905

Yichen Feng;Rui Wang;Xiaoyong Wang;Lixu He;Wei Xiang;Asad Saleem;Guoxin Zheng

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引用次数: 0

摘要

为了在铁路通信系统中有效部署5G网络基站（BSs），并确保列车终端与BSs之间的可靠通信，研究高速列车（HSTs）中室内外（O2I）无线信道特性至关重要。本文利用2.6 GHz HST测量活动的数据，通过确定HST玻璃窗的相对介电常数（6.27）和电导率（0.54）等关键参数，校准和验证了特定场景下的射线追踪模拟模型。利用该校准模型，分析了不同极化模式下的信道衰落特性。结果表明，在水平共极化（H-H）模式下，路径损耗（PL）、均方根延迟扩展（RMS-DS）和角扩展（AS）均低于其他偏振模式。这些发现旨在为未来5G基站在HST环境中的部署提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of Polarization Characteristics in Outdoor-to-Indoor Wireless Channels for High-Speed Trains

To effectively deploy 5G network base stations (BSs) in railway communication systems and ensure reliable communication between train terminals and BSs, it is essential to study the outdoor-to-indoor (O2I) wireless channel characteristics in high-speed trains (HSTs). This letter utilizes data from the 2.6 GHz HST measurement campaign to calibrate and validate the ray-tracing simulation model for the specified scenario by identifying key parameters, such as the relative permittivity (6.27) and conductivity (0.54) of the HST glass windows. Using this calibrated model, we analyze the channel fading characteristics under various polarization modes. The results indicate that, under the horizontal co-polarized (H-H) mode, the path loss (PL), root-mean-square delay spread (RMS-DS), and angular spread (AS) are all lower compared to other polarization modes. These findings are intended to provide a reference for the future deployment of 5G base stations in HST environments.

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.