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Deep Learning Approach for Wireless Signal and Modulation Classification
(Institute of Electrical and Electronics Engineers Inc., 2021) B C, B.; Deshmukh, A.; Rupa, M.V.; Sirigina, R.P.; Vankayala, S.K.; Narasimhadhan, A.V.
This paper aims to classify signal and modulation classes of a given wireless signal with high accuracy using a model having a low number of parameters. We propose an end-to-end method to classify a wireless signal based on its signal and modulation type using a CNN-based architecture. The proposed architecture is similar to that of the LeNet-5. Firstly, we implement signal and modulation classification using a decision tree, followed by a random forest algorithm, classic examples of machine learning(ML) based algorithms. Since our dataset is a time series, we also implement using RNN-LSTM based model for the classification. The proposed model has fewer parameters than that of the CNN-based, RNN-LSTM based architectures. Moreover, it achieves better accuracy for a wide range of signal-to-noise ratios than a decision tree, random forest, RNN-LSTM based classifiers. Â© 2021 IEEE.