Joint Doppler Shift and Channel Estimation for High-Speed Railway Wireless Communications in Tunnel Scenarios

被引：0

作者：

Wang, Zhigang ^{[1
]}

Wang, Zihao ^{[2
]}

Zhu, Fusheng ^{[1
]}

Luo, Zezhou ^{[1
]}

Li, Fang ^{[1
]}

Liu, Haopeng ^{[3
]}

机构：

[1] Guangdong Commun & Networks Inst, Guangzhou, Guangdong, Peoples R China

[2] China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou, Jiangsu, Peoples R China

[3] China Acad Railway Sci Corp Ltd, Inst Comp Technol, Beijing 100081, Peoples R China

来源：

WIRELESS COMMUNICATIONS & MOBILE COMPUTING | 2022年 / 2022卷

关键词：

RELAY NETWORKS; FULL-DUPLEX; FREQUENCY; TRANSMISSIONS; ACQUISITION; CHALLENGES;

D O I：

10.1155/2022/6804412

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this work, we study the problem of Doppler shift and channel estimation for wireless communication systems on high-speed railways (HSRs). We focus on tunnel scenario, one of the classical scenarios of HSRs. We first build up the mathematical system model, design a joint Doppler shift and channel estimator, and compare its performance with the typical Moose algorithm. We show that our estimator outperforms the Moose algorithm in Doppler estimation. Besides, since wireless channels in tunnel scenarios often contain several or multiple taps, we suggest an adaptive frame structure to improve transmission efficiency. Simulations are then provided to corroborate our proposed studies.

引用

页数：6

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