通信学报2025，Vol.46Issue(12)：93-103,11.DOI:10.11959/j.issn.1000-436x.2025224
人工噪声辅助的MISO可见光通信安全波束成形策略
Secure beamforming schemes in artificial noise-based MISO visible light communications
摘要
Abstract
To improve the performance of physical-layer security,secure beamforming schemes were designed for artifi-cial noise(AN)-aided multiple-input single-output visible light communication(VLC)systems.To address the issue that non-line-of-sight(NLoS)channel gains were easily overlooked,a system model that simultaneously considers line-of-sight and NLoS channel gains was established.Under perfect and imperfect channel state information conditions,opti-mal and robust secure beamforming problems were formulated,respectively.Considering the limitations of semidefinite relaxation(SDR)and Gaussian randomization methods,secure beamforming schemes combining semidefinite program-ming and penalty function were proposed.Numerical results show that,compared with SDR and Gaussian randomization methods,the proposed schemes can provide at least 3 dB of power gain.Moreover,both the adoption of AN technology and the consideration of NLoS channel gain can effectively reduce the system's transmission power.关键词
可见光通信/安全波束成形/非视距信道增益/人工噪声/信道状态信息Key words
VLC/secure beamforming/non-line-of-sight channel gain/artificial noise/CSI分类
信息技术与安全科学引用本文复制引用
王金元,于印长,林生红,严新润,李圆圆,李峥,刘笑宇,林敏..人工噪声辅助的MISO可见光通信安全波束成形策略[J].通信学报,2025,46(12):93-103,11.基金项目
国家自然科学基金资助项目(No.62472233) （No.62472233）
江苏省自然科学基金资助项目(No.BK20221328) （No.BK20221328）
江苏省工业云边协同技术工程研究中心开放课题基金资助项目(No.CEC202507)The National Natural Science Foundation of China(No.62472233),The Natural Science Foundation of Jiangsu Provence(No.BK20221328),The Open Research Fund of Jiangsu Engineering Research Center for Industrial Cloud-Edge Collabora-tion(No.CEC202507) （No.CEC202507）
