On Performance of Cooperative Satellite-AAV-Secured Reconfigurable Intelligent Surface Systems With Phase Errors

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-02-19 DOI:10.1109/LCOMM.2025.3543732

Anh-Tu Le;Thai-Hoc Vu;Tan N. Nguyen;Bui Vu Minh;Miroslav Voznak

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Abstract

This work studies the secrecy outage performance (SOP) of a reconfigurable intelligent surface (RIS)-empowered satellite-autonomous aerial vehicle (AAV) networks, where multiple antennas satellite communicates with its legitimate destination via a decode-and-forward AAV combined with an RIS in the presence of the eavesdropper. Considering the satellite channels and the terrestrial channels obeying Shadowed-Rician fading and Nakagami-m fading, respectively, the existence of the direct connections between AAV and ground terminals, and the imperfection of phase-shift alignment at RIS, we develop an information-theoretic framework to evaluate the SOP in terms of approximate and asymptotic manners. These guide the system engineering insights, including the configuration of bit control at RISs and the transmit power slope. Numerical results not only corroborate the efficacy of the developed framework but also characterize the SOP behaviour under variation of shadowing effects, RIS configurations, direct or non-direct communication scenarios, and AAV’s trajectory in 3D cylindrical coordinates.

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相位误差下卫星- aav -安全协同可重构智能地面系统性能研究

这项工作研究了可重构智能表面（RIS）授权卫星自主飞行器（AAV）网络的保密中断性能（SOP），其中多天线卫星通过解码转发AAV与窃听者存在的RIS结合与其合法目的地通信。考虑到卫星信道和地面信道分别服从阴影-克里衰落和Nakagami-m衰落，AAV和地面终端之间存在直接连接，以及RIS相移瞄准的不完全性，我们建立了一个信息论框架，从近似和渐近的方式来评估SOP。这些指导系统工程见解，包括RISs的位控制配置和传输功率斜率。数值结果不仅证实了所开发框架的有效性，而且还表征了在阴影效应、RIS配置、直接或非直接通信场景以及AAV在三维柱坐标下的轨迹变化下的SOP行为。

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.