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

Zhigang Wang | Zendy; Zihao Wang | Zendy; Fusheng Zhu | Zendy; Zezhou Luo | Zendy; Fang Li | Zendy; Haopeng Liu | Zendy

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

Author(s) -

Zhigang Wang,

Zihao Wang,

Fusheng Zhu,

Zezhou Luo,

Fang Li,

Haopeng Liu

Publication year - 2022

Publication title -

wireless communications and mobile computing

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.42

H-Index - 64

eISSN - 1530-8677

pISSN - 1530-8669

DOI - 10.1155/2022/6804412

Subject(s) - computer science , doppler effect , estimator , channel (broadcasting) , joint (building) , wireless , frame (networking) , transmission (telecommunications) , focus (optics) , real time computing , telecommunications , algorithm , statistics , mathematics , engineering , architectural engineering , physics , optics , astronomy

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.

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