通信学报2026，Vol.47Issue(7)：137-148,12.DOI:10.11959/j.issn.1000-436x.TXXB260148
双RIS辅助多用户通感一体化混合波束成形设计
Hybrid beamforming design for dual-RIS-assisted multi-user integrated sensing and communications
摘要
Abstract
Integrated sensing and communications(ISAC)is a core technology for low-altitude infrastructure,but its line-of-sight dependence limits performance in complex environments.Reconfigurable intelligent surface(RIS)provides an effective solution to this issue.The multi-user sum-rate maximization problem was investigated for dual-RIS ISAC sys-tems under transmit power and sensing constraints,via jointly optimizing hybrid sensing-communication beamforming and RIS phase shifts.The problem was demonstrated to be highly non-convex due to the tight coupling among multiple optimization variables,and it was considered extremely difficult to be solved directly.Semi-definite relaxation and suc-cessive convex approximation were jointly utilized to reconstruct and decouple the original problem,and a joint optimi-zation algorithm based on alternating optimization was further proposed for an efficient solution.The performance im-provement brought by dual RIS to the ISAC system was verified by the simulation results,and the superiority of the pro-posed algorithm was also confirmed.关键词
通信感知一体化/可重构智能表面/混合波束成形/半定松弛/逐次凸逼近Key words
integrated sensing and communication/reconfigurable intelligent surface/hybrid beamforming/semidefinite relaxation/successive convex approximation分类
信息技术与安全科学引用本文复制引用
薛青,马蚁,李职杜,华梦,陈前斌..双RIS辅助多用户通感一体化混合波束成形设计[J].通信学报,2026,47(7):137-148,12.基金项目
国家自然科学基金资助项目(No.U23A20279) （No.U23A20279）
澳门特别行政区科学技术发展基金资助项目(No.001/2024/SKL,No.0002/2025/EQP) （No.001/2024/SKL,No.0002/2025/EQP）
智慧城市物联网全国重点实验室(澳门大学)开放课题(No.SKL-IoTSC(UM)/ORP03/2026) （澳门大学）
新重庆青年创新人才项目(No.CSTB2025YITP-QCRCX0030) The National Natural Science Foundation of China(No.U23A20279),The Science and Technology Develop-ment Fund(No.001/2024/SKL,No.0002/2025/EQP),The State Key Laboratory of Internet of Things for Smart City(University of Macau)Open Research Project(No.SKL-IoTSC(UM)/ORP03/2026),The New Chongqing Youth Innovation Talent Funding(No.CSTB2025YITP-QCRCX0030) （No.CSTB2025YITP-QCRCX0030）
