Title
WiCAM: Imperceptible Adversarial Attack on Deep Learning based WiFi Sensing
Abstract
With the popularization of deep learning models in wireless sensing, researchers have made considerable efforts to construct sophisticated models to improve the accuracy of related applications. But very few studies have addressed the potential vulnerabilities of deep models, and existing works evaluate wireless adversarial performance only in communication or sensing. None of them has a comprehensive definition of attack imperceptibility. In this paper, we come up with a definition of the wireless attack imperceptibility for both communication and sensing. Our goal is to craft an adversarial perturbation, which can degrade the performance of WiFi sensing without compromising WiFi communication. To achieve this goal, we propose WiCAM to reveal the temporal and spatial attention of a DNN, capturing the crucial portions of its input. Then we design a mask to limit adversarial perturbation in the attended parts only, and thus the impact of the attack on WiFi communication is minimized. WiCAM is a general adversarial framework that can integrate existing adversarial methods such as FGSM and PGD to generate perturbations. We carry out experiments on three popular WiFi sensing applications, including human activity recognition, gesture recognition, and user identification. Extensive experiments are conducted on both public datasets and self-collected datasets. The results show that when declining the accuracy of a target model below 50%, WiCAM can reduce the impact on communication in terms of BER by up to 77.78% in QAM-64, compared to the common adversarial methods.
Year
DOI
Venue
2022
10.1109/SECON55815.2022.9918564
2022 19th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON)
Keywords
DocType
ISSN
WiCAM,temporal attention,spatial attention,adversarial perturbation,WiFi communication,WiFi sensing applications,adversarial attack,wireless sensing,sophisticated models,deep models,wireless adversarial performance,wireless attack imperceptibility,DNN,deep learning based WiFi sensing
Conference
2155-5486
ISBN
Citations 
PageRank 
978-1-6654-8644-6
0
0.34
References 
Authors
13
6
Name
Order
Citations
PageRank
Leiyang Xu100.34
Xiaolong Zheng215023.15
Xiangyuan Li300.34
Yucheng Zhang400.34
Liang Liu558757.54
Huadong Ma62020179.93