Integrated beamforming and trajectory optimization algorithm for RIS-assisted UAV system

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

ICT Express Pub Date : 2024-10-01 DOI:10.1016/j.icte.2024.04.008

引用次数: 0

Abstract

Unmanned aerial vehicles (UAVs) and reconfigurable intelligent surfaces (RISs) have garnered considerable research interest in the fields of 5G and 6G wireless communication due to their remarkable flexibility and cost-effectiveness. However, the inherent openness of wireless communication environments renders these technologies vulnerable to eavesdropping. This paper presents a penalty-based successive convex approximation algorithm and a minorize–maximization algorithm to optimize the transmission beamforming vector, RIS beamforming vector, and UAV–RIS trajectory. The objective of this study was to enhance the physical layer security performance of wireless communication systems using UAVs and RISs. Our simulation results demonstrate that the proposed technique achieves a higher security transmission rate compared to existing techniques.

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RIS 辅助无人机系统的波束成形和轨迹优化综合算法

无人飞行器（UAV）和可重构智能表面（RIS）因其出色的灵活性和成本效益，在 5G 和 6G 无线通信领域引起了广泛的研究兴趣。然而，无线通信环境固有的开放性使这些技术容易受到窃听。本文提出了一种基于惩罚的连续凸近似算法和最小化最大化算法来优化传输波束成形向量、RIS 波束成形向量和无人机-RIS 轨迹。这项研究的目的是提高使用无人机和 RIS 的无线通信系统的物理层安全性能。我们的模拟结果表明，与现有技术相比，建议的技术实现了更高的安全传输速率。

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

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.