论文标题
LEO卫星星座的物理层认证
Physical Layer Authentication for LEO Satellite Constellations
论文作者
论文摘要
物理层身份验证（PLA）是根据节点基于其物理层特征（例如通道褪色或硬件缺陷）声称身份的过程。在这项工作中，我们提出了一种新颖的PLA方法，用于LEO卫星的卫星间通信链接（ISLS）。在拟议的PLA方法中，多个接收卫星通过将多普勒频率测量值与合法发射器的参考移动性信息进行比较，从而验证了发射机的身份，然后考虑到所选决策规则，将其决定融合在一起。对于融合方法的欺骗检测概率和错误警报概率，获得了分析表达式。数值获得的高认证性能结果为LEO卫星网络的新颖且易于整合的身份验证机制铺平了道路。
Physical layer authentication (PLA) is the process of claiming identity of a node based on its physical layer characteristics such as channel fading or hardware imperfections. In this work, we propose a novel PLA method for the inter-satellite communication links (ISLs) of the LEO satellites. In the proposed PLA method, multiple receiving satellites validate the identity of the transmitter by comparing the Doppler frequency measurements with the reference mobility information of the legitimate transmitter and then fuse their decision considering the selected decision rule. Analytical expressions are obtained for the spoofing detection probability and false alarm probability of the fusion methods. Numerically obtained high authentication performance results pave the way to a novel and easily integrable authentication mechanism for the LEO satellite networks.
