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Automatic Modulation Classification: Convolutional Deep Learning Neural Networks Approaches
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DOI：10.1109/ACCESS.2023.3313393.png)
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摘要
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This study proposes robust convolutional neural network (CNN)-based automatic modulation classification (AMC) techniques. Traditional AMCs may be classified into two types: those that rely on ML (maximum likelihood-based AMCs) and those that rely on features. Numerous studies have been conducted on feature-based automatic modulation classification techniques. The current feature-based AMCs lack generalization capability and frequently target a small group of modulation techniques. The current paper develops three different CNN-based AMCs, each with a different classification layer (CL). The adopted classification layers are mean absolute error-based CL, a sum of squared errors-based CL, and crossentropy-based CL. The developed techniques can classify the received signals without feature extraction, where they can learn the features from the transmitted signals automatically during the offline training process, thus eliminating the necessity for feature extraction. A comparison study was done for the proposed CNN-based AMCs with three optimization algorithms at two signal-to-noise ratios. The proposed AMCs attain a true classification accuracy of up to 100% depending on the optimizer and loss function-base CL.
Keyword:
Modulation
Convolutional neural networks
Convolution
Feature extraction
Deep learning
Neural networks
Signal to noise ratio
Modulation classification
deep learning
convolutional neural network
wireless signal
期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
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