Fingerprinting Far Proximity from Radio Emissions
Fingerprinting Far Proximity from Radio Emissions
复制标题
远离无线电发射的指纹识别
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Jay Ligatti
中科院分区：
文献类型：
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作者：
Tao Wang;Yao Liu;Jay Ligatti
随着无线移动设备越来越普遍并在关键应用中得到采用，以安全的方式测量这些设备的物理接近度变得越来越重要。尽管已经开发了各种技术来识别设备是否靠近，但识别远距离（即目标至少相距一定距离）的问题一直被研究界忽视。同时，验证远距离对于增强新兴无线应用的安全性是可取且至关重要的。在本文中，我们提出了一种安全的远距离识别方法，可以确定远程设备是否遥远。该方法的关键思想是根据不可伪造的邻近度“指纹”来估计远距离度。我们通过对真实测量信道数据的实验验证和评估了所提出的远近识别方法的有效性。实验结果表明，该方法在非视距（NLoS）场景下能够检测远近，成功率为0.85，在视距（LoS）场景下成功率可进一步提高到0.99。
As wireless mobile devices are more and more pervasive and adopted in critical applications, it is becoming increasingly important to measure the physical proximity of these devices in a secure way. Although various techniques have been developed to identify whether a device is close, the problem of identifying the far proximity (i.e., a target is at least a certain distance away) has been neglected by the research community. Meanwhile, verifying the far proximity is desirable and critical to enhance the security of emerging wireless applications. In this paper, we propose a secure far proximity identification approach that determines whether or not a remote device is far away. The key idea of the proposed approach is to estimate the far proximity from the unforgeable “fingerprint” of the proximity. We have validated and evaluated the effectiveness of the proposed far proximity identification method through experiments on real measured channel data. The experiment results show that the proposed approach can detect the far proximity with a successful rate of 0.85 for the non-Line-of-sight (NLoS) scenario, and the successful rate can be further increased to 0.99 for the Line-of-sight (LoS) scenario.