电讯技术2026，Vol.66Issue(6)：980-987,8.DOI:10.20079/j.issn.1001-893x.250723001
恶意干扰机对RIS-ISAC系统安全传输性能影响
Impact of Malicious Jammers on Secure Transmission Performance of RIS-ISAC Systems
梁燕 1林思情2
作者信息
- 1. 重庆邮电大学 通信与信息工程学院,重庆 400065||信号与信息处理重庆市重点实验室,重庆 400065
- 2. 重庆邮电大学 通信与信息工程学院,重庆 400065
- 折叠
摘要
Abstract
The reconfigurable intelligent surface(RIS)aided integrated sensing and communication(ISAC)system achieves the coordinated optimization of communication and sensing functions by dynamically regulating electromagnetic waves.To investigate the impact of malicious jammers on the security performance of RIS-ISAC systems,a system security rate maximization problem is established.This is done by jointly optimizing the transmit beamforming matrix of the base station(BS)and the phase shift matrix of RIS,while satisfying the constraints on the BS's received echo signal-to-interference-plus-noise ratio,BS transmit power,and RIS reflection amplitude.Simulation results show that:①In scenarios with high jammer power,the system security rate decreases by 37.2%when the jammer is close to the BS compared with when it is far away;moreover,the position sensitivity of the jammer increases when its power exceeds 42 dBm.② Increasing the number of RIS elements can compensate for the communication performance loss caused by the improvement of radar SINR.③When the jammer power is less than 42 dBm,a small number of RIS elements are sufficient to achieve the ideal security rate.④Expanding the RIS scale can compensate for the BS transmit power loss,and the influence of the jammer's position weakens as the BS transmit power increases.关键词
通感一体化/可重构智能表面/安全传输性能/恶意干扰Key words
integrated sensing and communication/reconfigurable intelligent surface/secure transmission performance/malicious jammer分类
信息技术与安全科学引用本文复制引用
梁燕,林思情..恶意干扰机对RIS-ISAC系统安全传输性能影响[J].电讯技术,2026,66(6):980-987,8.
