本文考虑一个搭载同时反射和透射智能超表面(Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surface，STAR-RIS)的无人机辅助通感一体化系统，通过联合设计基站发射波束成形向量、STAR-RIS的反射与透射相移矩阵以及无人机高度，以在感知性能约束下最大化系统通信速率。对于上述多变量优化问题，通过解耦合可分别对每个变量进行求解。具体而言，通过相位对齐可以得到基站发射波束成形向量以及STAR-RIS的相移矩阵，之后可推导出无人机高度的闭式最优解，并通过仿真实验验证了所提出方案的有效性。
Rate Maximization Design of STAR-RIS-based Unmanned Aerial Vehicle Assisted Integrated Sensing and Communication System
This paper investigates a simultaneoustransmitting and reflecting reconfigurable intelligent surfaces(STAR-RIS)based unmanned aerial vehicle assisted integrated sensing and communication system.The objective is tomaximize the communication rate within theconstraints of sensing performance by jointly designing the transmit beamforming vector at the base station,the phaseshift matrices for the STAR-RIS,and the height of unmanned aerial vehicle.For the above multivariate optimization problem,each variable is solved separately.Specifically,the transmit beamforming vector of the base station and the phase matrices of the STAR-RIS can be obtained by phase alignment,and then the closed-form optimal solution of the UAV altitude can be derived.Finally,the effectiveness of the proposed scheme is verified through the numerical results.
integrated sensing and communicationunmanned aerial vehicleSTAR-RIS
NETL
NSTL
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