无蜂窝通感一体化系统用户调度与功率分配OA

With the advancement of 6G technology,the ultra-wide bandwidth advantages of millimeter-wave/Terahertz frequency bands coexist with propagation loss bottlenecks,and the problems of traditional cellular architectures have given rise to the cell-free net-work architecture.The Integrated Sensing and Communication(ISAC)technology achieves sensing-communication coordination through resource sharing,which can optimize beamforming and alignment,making the cell-free ISAC system as an important trend in future communications.Most current user scheduling algorithms only limit the maximum number of access points that users can connect to,without dynamically adjusting the number of connections according to users'actual needs.This leads to users with good channel quality easily occupying excessive access points service slots,causing resource waste.Moreover,considering the dynamic nature of user de-mands,flexibly adjusting the number of access points connections according to their needs can effectively improve resource utilization.To address this,an innovative dynamic user scheduling scheme is proposed,where an improved K-means++clustering algorithm is used to dynamically allocate access points based on users'channel states and real-time service requirements and a Bisection Method-based Power Allocation(BM-PA)algorithm is designed to optimize resource allocation.Simulation results show that the proposed scheme can save up to 40.6%of access points resources at maximum,significantly improving resource utilization;while ensuring com-munication quality,it significantly enhances the average sensing Signal to Noise Ratio(SNR)of users.