Meta-Learning Guided Label Noise Distillation for Robust Signal Modulation Classification

Automatic modulation classification (AMC) is an effective way to deal with physical layer threats of the internet of things (IoT). However, there is often label mislabeling in practice, which significantly impacts the performance and robustness of deep neural networks (DNNs). In this paper, we propo...

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Bibliographic Details
Published in:arXiv.org 2024-08
Main Authors: Hao, Xiaoyang, Feng, Zhixi, Peng, Tongqing, Yang, Shuyuan
Format: Article
Language:English
Subjects:
Artificial neural networks
Internet of Things
Labels
Learning
Machine learning
Modulation
Performance enhancement
Robustness
Signal classification
Teachers
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Summary:Automatic modulation classification (AMC) is an effective way to deal with physical layer threats of the internet of things (IoT). However, there is often label mislabeling in practice, which significantly impacts the performance and robustness of deep neural networks (DNNs). In this paper, we propose a meta-learning guided label noise distillation method for robust AMC. Specifically, a teacher-student heterogeneous network (TSHN) framework is proposed to distill and reuse label noise. Based on the idea that labels are representations, the teacher network with trusted meta-learning divides and conquers untrusted label samples and then guides the student network to learn better by reassessing and correcting labels. Furthermore, we propose a multi-view signal (MVS) method to further improve the performance of hard-to-classify categories with few-shot trusted label samples. Extensive experimental results show that our methods can significantly improve the performance and robustness of signal AMC in various and complex label noise scenarios, which is crucial for securing IoT applications.
ISSN:2331-8422