On Eavesdropping Region Characterization in Hybrid Wireless Communications
On Eavesdropping Region Characterization in Hybrid Wireless Communications
复制标题
混合无线通信中窃听区域表征
DOI：
10.1109/nana51271.2020.00013
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Kasahara Shoji
中科院分区：
文献类型：
--
作者：
Qu Qianyue;Zhang Yuanyu;Kasahara Shoji
毫米波（mmWave）链路与微波链路共存的混合通信系统已被视为5G系统中的基本组件，而与任何其他无线系统一样，这些系统中的通信容易受到窃听攻击。在混合无线系统中，窃听者可以通过机会主义地选择波（即，毫米波或微波）进行窃听，将网络划分为毫米波窃听区域和微波窃听区域。因此，本文从物理层安全的角度研究了混合无线系统中的窃听区域表征问题。我们首先推导出当窃听者分别选择在毫米波和微波上窃听时网络的保密中断概率（SOP）。利用毫米波链路的SOP与微波链路的SOP之比作为窃听波的选择标准，确定了毫米波和微波的窃听区域。最后，我们提供了大量的数值结果来说明窃听区域下的各种网络参数的设置。
Hybrid communication systems, where millimeterwave (mmWave) links coexist with microwave links, have been regarded as a fundamental component in 5G systems, while, like any other wireless system, communications in these systems are vulnerable to eavesdropping attacks. In hybrid wireless systems, eavesdroppers can improve their eavesdropping effect by opportunistically selecting the wave (i.e., mmWave or microwave) to eavesdrop on, partitioning the network into an mmWave eavesdropping region and a microwave eavesdropping region. This paper therefore investigates the eavesdropping region characterization problem in hybrid wireless systems from the perspective of physical layer security. We first derive the secrecy outage probabilities (SOPs) of the network when eavesdroppers choose to eavesdrop on the mmWave and microwave, respectively. Using the ratio between the SOP of mmWave links and that of microwave links as the eavesdropping wave selection criterion, we determine the mmWave and microwave eavesdropping regions. Finally, we provide extensive numerical results to illustrate the eavesdropping regions under various settings of network parameters.