AI 中文总结
针对流体天线阵列激活的速率-孔径-可行性问题，提出IA-ZPA方法，其在满足平均PSLL目标的前提下，取得比贪心选择更优的约束速率且决策时间更短。
AI 中文摘要
流体天线阵列（FAA）的激活需联合确定用于预编码的有效多用户信道与稀疏物理孔径。面向信道的选择会集中高增益端口并降低孔径质量，而面向几何的选择无法适配瞬时信道状态信息（CSI）。本文将有限端口FAA的激活建模为精确射频链路预算下的速率-孔径-可行性问题，提出阻抗感知分区端口激活（IA-ZPA）方法，其结合了基于紧凑CSI的端口评分、棋盘式可行性投影，以及推理阶段的互阻抗感知选择；学习到的评分器对端口排序，确定性规则确定激活孔径，独立的电流域RZF后端评估源驱动可行性。在常见的感应电动势协议下，IA-ZPA在满足规定平均旁瓣电平（PSLL）目标的方法中取得最大约束速率，且决策时间远低于贪心选择。
英文摘要
Fluid antenna array (FAA) activation jointly determines the effective multi-user channel for precoding and the sparse physical aperture. Channel-oriented selection can concentrate high-gain ports and erode aperture quality, whereas geometry-oriented selection does not adapt to instantaneous channel state information (CSI). This paper formulates finite-port FAA activation as a rate--aperture--feasibility problem under an exact RF-chain budget. We propose impedance-aware zonal port activation (IA-ZPA), which couples compact CSI-conditioned port scoring with a checkerboard feasibility projection and inference-time mutual-impedance-aware selection. The learned scorer ranks ports, while the deterministic rule fixes the active aperture; a separate current-domain RZF backend then evaluates source-drive feasibility. Under a common induced-EMF protocol, IA-ZPA attains the largest constrained rate among the methods satisfying the prescribed mean-PSLL target with a substantially lower decision time than greedy selection.
