Doppler Shift Compensation Assisted by RIS Systems in High-Mobility Communications

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-09-23 DOI:10.1109/LCOMM.2024.3466562

Pedro H. C. de Souza;Luciano Mendes

引用次数: 0

Abstract

The Doppler shift in the signal frequency caused by the relative movement of the receiver is considered to be detrimental for communication systems. Although this problem has been studied extensively, it is still relevant given the renewed interest on high-mobility communications. On the other hand, novel solutions such as the reconfigurable intelligent surface (RIS) can be repurposed for tackling the Doppler shift in high-mobility communication systems. Despite not being its usual primary goal, we show in this work that the RIS can compensate the Doppler shift at a small cost in performance.

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高移动性通信中的 RIS 系统辅助多普勒频移补偿

接收器的相对移动造成的信号频率多普勒频移被认为对通信系统有害。尽管这一问题已被广泛研究，但鉴于人们对高移动性通信的重新关注，这一问题仍然具有现实意义。另一方面，可重构智能表面（RIS）等新型解决方案可用于解决高移动性通信系统中的多普勒频移问题。尽管多普勒频移并不是可重构智能表面的主要目标，但我们在这项工作中表明，可重构智能表面能以较小的性能代价补偿多普勒频移。

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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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.