通信学报2023，Vol.44Issue(12)：50-60,11.DOI:10.11959/j.issn.1000-436x.2023221
基于速率分割的可重构智能表面辅助星地融合网络鲁棒安全传输方案
Rate splitting based robust secure transmission scheme in RIS-assisted satellite-terrestrial integrated network
摘要
Abstract
Firstly,considering a reconfigurable intelligent surface(RIS)assisted satellite terrestrial integrated network,the satellite employed the rate splitting multiple access technique to serve multiple earth stations in the presence of multi-ple eavers-droppers(Eves),while the terrestrial network leveraged multicast technique to serve many ground users with the assist of RIS.Secondly,assuming that only the Eves'imperfect channel state information could be obtained,a joint optimization problem was formulated to minimize the total transmit power,while ensuring the quality-of-service re-quirement for all users,and adhering to intercept probabilistic constraints.To tackle this noncom vex problem,the S-procedure and the successive convex approximation approach were employed to convert the intercept probabilistic constraints into solved ones.And then a nuclear norm-based penalty function was employed to propose a robust joint al-gorithm to obtain the robust beamforming weight vectors and transmit power.Finally,the simulation results demonstrate the effectiveness and superiority of the proposed transmission scheme.关键词
星地融合网络/可重构智能表面/速率分割多址/鲁棒波束成形/窃听概率约束Key words
satellite terrestrial integrated network/reconfigurable intelligent surface/rate splitting multiple access/robust beamforming/intercept probability constraint分类
信息技术与安全科学引用本文复制引用
赵柏,林敏,肖圣杰,程铭,冯一帆,杨绿溪..基于速率分割的可重构智能表面辅助星地融合网络鲁棒安全传输方案[J].通信学报,2023,44(12):50-60,11.基金项目
国家自然科学基金资助项目(No.61720106003,No.61971128,No.62301282) （No.61720106003,No.61971128,No.62301282）
南京邮电大学引进人才科研启动基金资助项目(No.NY220111,No.NY221009) （No.NY220111,No.NY221009）
江苏省研究生科研与实践创新计划基金资助项目(No.KYCX23_1018)The National Natural Science Foundation of China(No.61720106003,No.61971128,No.62301282),Talent Research Start-up Foundation of Nanjing University of Posts and Communications(No.NY220111,No.NY221009),The Postgraduate Re-search and Practice Innovation Program of Jiangsu Province(No.KYCX23_1018) （No.KYCX23_1018）
