In this paper, the wireless hierarchical federated learning (HFL) is revisited by considering physical layer security (PLS). First, we establish a framework for this new problem. Then, we propose a practical finite blocklength (FBL) coding scheme for the wireless HFL in the presence of PLS, which is self-secure when the coding blocklength is lager than a certain threshold. Finally, the study of this paper is further explained via numerical examples and simulation results.
翻译:在本文中,通过考虑物理层安全(PLS)来重新审视无线级联级学习(HFL)问题。 首先,我们为这一新问题建立了一个框架。 然后,我们提出了无线高频(FBL)实用的有限轮挡长度(FBL)编码方案,在有PLS的情况下,无线高频(FBL)编码方案是自保的,因为编码区块长度比某一阈值要长。最后,通过数字示例和模拟结果进一步解释对本文件的研究。