毫米波信道下车辆排通信的RIS反射模式设计

IF 4.1 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

ICT Express Pub Date : 2025-02-01 DOI:10.1016/j.icte.2024.10.004

Jong-Ho Lee, Jiho Song

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引用次数: 0

摘要

在本文中，我们提出了一种在毫米波（mmWave）信道中可重构智能表面（RIS）辅助车辆排通信的反射模式设计方案。我们专注于优化安装在路边单元的RIS的反射模式，以最大限度地提高从排中的领先车辆到每个后续成员车辆的广播信息率。我们证明了用半定规划可以有效地解决这一问题。接下来，我们提出了RIS的反射模式设计方案，该方案通过利用毫米波信道中每辆车与RIS之间的出发角、到达角和路径损耗信息来最大化其反射增益。最后，我们给出了数值结果，证明了我们所提出的反射模式设计方案的有效性。

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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RIS reflection pattern design for vehicular platoon communications in mmWave channels

In this paper, we propose a reflection pattern design scheme for reconfigurable intelligent surface (RIS) assisted vehicular platoon communications in millimeter wave (mmWave) channels. We focus on optimizing the reflection pattern of a RIS that is installed in a roadside unit to maximize the broadcast information rate from the lead vehicle in a platoon to each following member vehicle. We show that this problem can be effectively solved using semidefinite programming. Next, we propose a reflection pattern design scheme for the RIS that maximizes its reflection gain by exploiting the angle of departure, angle of arrival, and path loss information between each vehicle and the RIS in mmWave channels. Finally, we present numerical results that demonstrate the effectiveness of our proposed reflection pattern design scheme.

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来源期刊

ICT Express Multiple-

CiteScore

10.20

自引率

1.90%

发文量

167

审稿时长

35 weeks

期刊介绍： The ICT Express journal published by the Korean Institute of Communications and Information Sciences (KICS) is an international, peer-reviewed research publication covering all aspects of information and communication technology. The journal aims to publish research that helps advance the theoretical and practical understanding of ICT convergence, platform technologies, communication networks, and device technologies. The technology advancement in information and communication technology (ICT) sector enables portable devices to be always connected while supporting high data rate, resulting in the recent popularity of smartphones that have a considerable impact in economic and social development.