Robust Wireless Fingerprinting via Complex-Valued Neural Networks

被引:21
|
作者
Gopalakrishnan, Soorya [1 ]
Cekic, Metehan [1 ]
Madhow, Upamanyu [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
关键词
wireless fingerprinting; complex-valued neural networks; PHYSICAL DEVICE;
D O I
10.1109/globecom38437.2019.9013154
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A "wireless fingerprint" which exploits hardware imperfections unique to each device is a potentially powerful tool for wireless security. Such a fingerprint should be able to distinguish between devices sending the same message, and should be robust against standard spoofing techniques. Since the information in wireless signals resides in complex baseband, in this paper, we explore the use of neural networks with complex-valued weights to learn fingerprints using supervised learning. We demonstrate that, while there are potential benefits to using sections of the signal beyond just the preamble to learn fingerprints, the network cheats when it can, using information such as transmitter ID (which can be easily spoofed) to artificially inflate performance. We also show that noise augmentation by inserting additional white Gaussian noise can lead to significant performance gains, which indicates that this counter-intuitive strategy helps in learning more robust fingerprints. We provide results for two different wireless protocols, WiFi and ADS-B, demonstrating the effectiveness of the proposed method.
引用
收藏
页数:6
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