论文标题
使用物理层安全性安全毫米波临时通信
Secure Millimeter-Wave Ad Hoc Communications Using Physical Layer Security
论文作者
论文摘要
毫米波（MMWAVE）通信非常有希望可以提高现代无线网络的能力，而物理层安全性（PLS）技术具有巨大的潜力，可以增强其中的关键保密性能。通过仔细利用非光线（NLOS）和视线（LOS）MMWAVE链接之间的显着信号差，本文提出了一种基于视觉的合作干扰（SCJ）方案，以提高MMWave Ad Hoc Communications的PLS性能。在此方案中，每个潜在的干扰器都没有与其最近的接收器链接，但可能会选择与窃听器的LOS链接，并具有一定概率来产生人造噪声，以便可以实现合法接收器的通道优势。对于新的干扰方案的性能建模，首先开发出了新颖有效的理论近似方法，以实现具有挑战性的干扰分布建模问题，然后提出了基于随机几何形状的理论框架来捕获SCJ方案下的秘密传输能力行为。最后，提供了广泛的数值结果，以说明各种网络方案下的SCJ方案。
Millimeter-wave (mmWave) communications are highly promising to improve the capacity of modern wireless networks, while the physical layer security (PLS) techniques hold great potential to enhance the critical secrecy performance therein. By carefully exploiting the significant signal difference between the Non-Light-of-Sight (NLoS) and Line-of-Sight (LoS) mmWave links, this paper proposes a Sight-based Cooperative Jamming (SCJ) scheme to improve the PLS performance of mmWave ad hoc communications. In this scheme, each potential jammer that has no LoS link to its nearest receiver but may have LoS links to eavesdroppers is selected with a certain probability to generate artificial noise such that channel advantages at legitimate receivers can be achieved. For performance modeling of the new jamming scheme, novel and efficient theoretical approximation approaches are firstly developed to enable the challenging issue of interference distribution modeling to be tackled, and then a theoretical framework based on stochastic geometry is proposed to capture the secrecy transmission capacity behavior under the SCJ scheme. Finally, extensive numerical results are provided to illustrate the SCJ scheme under various network scenarios.
