Data-Driven Deep Learning for Automatic Modulation Recognition in Cognitive Radios
By Yu Wang, Miao Liu, Jie Yang, Guan Gui. IEEE Transactions on Vehicular Technology, 2019
630 citations recorded by the source corpus.
Automatic modulation recognition (AMR) is an essential and challenging topic in the development of the cognitive radio (CR), and it is a cornerstone of CR adaptive modulation and demodulation capabilities to sense and learn environments and make corresponding adjustments. AMR is essentially a classification problem, and deep learning achieves outstanding performances in various classification tasks. So, this paper proposes a deep learning-based method, combined with two convolutional neural networks (CNNs) trained on different datasets, to achieve higher accuracy AMR. A CNN is trained on samples composed of in-phase and quadrature component signals, otherwise known as in-phase and quadrature samples, to distinguish modulation modes, that are relatively easy to identify. We adopt dropout instead of pooling operation to achieve higher recognition accuracy. A CNN based on constellation diagrams is also designed to recognize modulation modes that are difficult to distinguish in the former CNN, such as 16 quadratic-amplitude modulation (QAM) and 64 QAM, demonstrating the ability to classify QAM signals even in scenarios with a low signal-to-noise ratio.
Subfields: Aerospace Engineering, Artificial Intelligence, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/861943d548754e72736a2b53875ec252de72a222
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Citations in the corpus
- A Survey on Resource Allocation for 5G Heterogeneous Networks: Current Research, Future Trends, and Challenges (2020, background): “With the development of machine learning, deep learning, and artificial intelligence, many learning-based algorithms have been proposed to solve channel estimation [183], automatic modulation recognition [184], network traffic control [185], computing offloading [186], congestion control [187], dire”