随机窃听器下ris辅助MIMO系统的保密中断分析

IF 4.4 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-12-11 DOI:10.1109/LCOMM.2024.3515089

Tianxiong Wang;Zijing Wang;Sen Wang;Gaojie Chen;Yifei Yuan

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引用次数: 0

摘要

在这封信中，我们研究了随机定位窃听者存在的可重构智能表面（RIS）辅助多输入多输出（MIMO）通信网络的保密性能。我们推导了基站波束形成矢量和RIS相移的封闭表达式。考虑串通窃听策略，利用随机几何理论，以封闭形式得到了保密中断概率。数值结果证实了理论分析的有效性，表明增加BS天线和RIS单元的数量可以显著提高系统的保密性能。

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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Secrecy Outage Analysis of RIS-Assisted MIMO System With Randomly Located Eavesdroppers

In this letter, we investigate the secrecy performance of a reconfigurable intelligent surface (RIS) assisted multiple-input multiple-output (MIMO) communication network in the presence of randomly positioned eavesdroppers. We derive closed form expressions for the beamforming vector of the base station (BS) and the phase shifts of the RIS. Considering the colluding wiretap strategy, the secrecy outage probability is obtained in closed form by using the theory of stochastic geometry. Numerical results confirm the effectiveness of our theoretical analysis, demonstrating that increasing the number of BS antennas and RIS elements can significantly enhance the secrecy performance of the system.

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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.