面向低空网络的信道知识地图构建与应用OA

As a critical infrastructure supporting the development of the low-altitude economy,low-altitude networks face severe challenges in achieving reliable communication in complex propagation environments.Traditional channel knowledge maps(CKMs),primarily designed for terrestrial cellular networks,exhibit significant limitations in aerial and dynamic scenarios.This paper aims to systematically explore the construction methods of CKMs tailored for low-altitude networks.Firstly,the fundamental concepts and existing techniques of CKMs are reviewed.Subsequently,focusing on the multi-dimensional characteristics of low-altitude networks across frequency,spatial,and time domains,and considering specific application scenarios such as low-altitude vehicle-to-everything,uncrewed aerial vehicle swarm interference coordination,precise positioning/navigation,and network optimization,the paper proposes a hierarchical framework for constructing various CKMs.The construction methodologies and synergistic mechanisms of different types of maps are analyzed to highlight the principle of task-oriented map design.Finally,the paper provides an outlook on future research directions for low-altitude network CKMs,particularly in areas such as systematic hierarchical CKM construction and multi-modal data fusion.