A Super Light Convolutional Neural Network for Automatic Modulation Recognition in Unmanned Aerial Vehicles based 6G Wireless Network
Keywords:
Automatic Modulation Recognition, Unmanned Aerial Vehicles, Deep Learning, Super Light Convolution Neural Network, Feature Extraction, Computational ModelingAbstract
Automatic Modulation Recognition (AMR) is a fundamental capability for Unmanned Aerial Vehicle (UAV) communication systems in sixth-generation (6G) wireless networks. It enables UAVs to intelligently identify and track received signals, supporting reliable connectivity under dynamic environments. In practical UAV applications, AMR methods must achieve high recognition accuracy with minimal computational complexity, since UAV platforms operate under strict constraints in storage, memory, and processing power. While recent Deep Learning (DL)-based solutions have advanced AMR performance, most prioritize accuracy at the cost of significantly larger models and higher computational demands. Conversely, lightweight models often lack the accuracy required for real-time deployment, limiting their practical utility. To overcome these limitations, this paper presents a novel Super Light Convolutional Neural Network (SLCNN) for AMR. Unlike conventional models, SLCNN em-
ploys a carefully optimized architecture with fewer convolutional layers, smaller filters, and pooling operations, combined with Gaussian noise and dropout for robust generalization. This design strategy reduces model size and inference time while preserving high accuracy. The proposed SLCNN was evaluated on the HisarMod 2019.1 dataset and validated across RML 2016.10a, 2016.10b, and 2018.01a datasets. Experimental comparisons with Convolutional Long Short-Term Memory Deep Neural Network (CLNN), Long Short-Term Memory, Gated Recurrent Unit, and Residual Network highlight that SLCNN achieves superior results, attaining 98.50% classification accuracy with significantly reduced computational cost. Furthermore, deployment on the NVIDIA Jetson Orin Nano demonstrates real-time suitability, confirming the model’s effectiveness for UAV-based 6G wireless networks.
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N. H. Motlagh, M. Bagaa, and T. Taleb, “UAV selection for a UAV-based integrative IoT platform,” in 2016 IEEE Global Communications Conference (GLOBECOM). IEEE, 2016, pp. 1–6. doi:10.1109/GLOCOM.2016.7 842 359.
B. Li, X. Guo, R. Zhang, X. Du, and M. Guizani, “Performance analysis and optimization for the MAC protocol in UAV-based IoT network,” IEEE Transactions on Vehicular Technology, vol. 69, no. 8, pp. 8925–8937, 2020, doi:10.1109/TVT.2020.2997782.
S. Mukhopadhyay, K. Gupta, A. Kashyap, A. Sarkhel, and S. S. Yadav, “Characteristics Analysis of 2-Bit Digitally Time-Coded Programmable Metasurface Using Vector Synthesis Approach,” in 2024 IEEE International Students’ Conference on Electrical, Electronics and Computer Science (SCEECS), 2024, pp. 1–6. doi:10.1109/SCEECS61 402.2024.10 482 320.
Q. Wu, S. Zhang, B. Zheng, C. You, and R. Zhang, “Intelligent Reflecting Surface-Aided Wireless Communications: A Tutorial,” IEEE Transactions on Communications, vol. 69, no. 5, pp. 3313–3351, 2021. doi:10.1109/TCOMM.2021.3051897.
J. G. Andrews and T. H. Meng, “Optimum power control for successive interference cancellation with imperfect channel estimation,” IEEE Transactions on Wireless Communications, vol. 2, no. 2, pp. 375–383, 2003. doi:10.1109/TWC.2003.809123.
D. Sarkar, S. S. Yadav, V. Pal, Yogita, and N. Kumar, “Intelligent Reflecting Surface Aided NOMA-HARQ Based IoT Framework for Future Wireless Networks,” IEEE Transactions on Vehicular Technology, vol. 72, no. 5, pp. 6268–6280, 2023. doi:10.1109/TVT.2022.3233090.
M. Mozaffari, W. Saad, M. Bennis, Y.-H. Nam, and M. Debbah, “A Tutorial on UAVs for Wireless Networks: Applications, Challenges, and Open Problems,” IEEE Communications Surveys & Tutorials, vol. 21, no. 3, pp. 2334–2360, 2019. doi:10.1109/COMST.2019.2902862.
A. Rovira-Sugranes, A. Razi, F. Afghah, and J. Chakareski, “A review of AI-enabled routing protocols for UAV networks: Trends, challenges, and future outlook,” Ad Hoc Networks, vol. 130, p. 102790, 2022. doi:10.1016/j.adhoc.2022.102790.
X. Zhang, H. Zhao, H. Zhu, B. Adebisi, G. Gui, H. Gacanin, and F. Adachi, “NAS-AMR: Neural architecture search-based automatic modulation recognition for integrated sensing and communication systems,” IEEE Transactions on Cognitive Communications and Networking, vol. 8, no. 3, pp. 1374–1386, 2022. doi:10.1109/TCCN.2022.3169740.
Z. Zhu and A. K. Nandi, Automatic modulation classification: principles, algorithms and applications. John Wiley & Sons, 2015. doi:10.1002/9781118906507.
T. Huynh-The, Q.-V. Pham, T.-V. Nguyen, T. T. Nguyen, R. Ruby, M. Zeng, and D.-S. Kim, “Automatic modulation classification: A deep architecture survey,” IEEE Access, vol. 9, pp. 142 950–142 971, 2021. doi:10.1109/ACCESS.2021.3120419.
D. Sarkar, Yogita, S. Singh Yadav, L. R. Cenkeramaddi, and O. Jee Pandey, “TDRA: Transformer-Based Deep Recurrent Architecture for Automatic Modulation Classification Pertinent to Intelligent-Reflecting-Surface-Assisted Internet of Things Networks,” IEEE Internet of Things Journal, vol. 11, no. 23, pp. 38 907–38 924, 2024. doi:10.1109/JIOT.2024.3455434.
S. Zheng, P. Qi, S. Chen, and X. Yang, “Fusion methods for CNN-based automatic modulation classification,” IEEE Access, vol. 7, pp. 66 496–66 504, 2019. doi:10.1109/ACCESS.2019.2918136.
V. Hassija, V. Saxena, and V. Chamola, “Scheduling drone charging for multi-drone network based on consensus time-stamp and game theory,” Computer Communications, vol. 149, pp. 51–61, 2020. doi:10.1016/j.comcom.2019.09.021.
D. Zhang, W. Ding, B. Zhang, C. Xie, H. Li, C. Liu, and J. Han, “Automatic modulation classification based on deep learning for unmanned aerial vehicles,” Sensors, vol. 18, no. 3, p. 924, 2018. doi:10.3390/s18030924.
X. Yan, X. Rao, Q. Wang, H.-C. Wu, Y. Zhang, and Y. Wu, “Novel cooperative automatic modulation classification using unmanned aerial vehicles,” IEEE Sensors Journal, vol. 21, no. 24, pp. 28 107–28 117, 2021. doi:10.1109/JSEN.2021.3123048.
Q. Zhou, S. Wu, C. Jiang, R. Zhang, and X. Jing, “Over-the-Air Federated Transfer Learning Over UAV Swarm for Automatic Modulation Recognition in V2X Radio Monitoring,” IEEE Transactions on Vehicular Technology, vol. 73, no. 3, pp. 3597–3607, 2024. doi:10.1109/TVT.2023.3324505.
A. K. Nandi and E. E. Azzouz, “Algorithms for automatic modulation recognition of communication signals,” IEEE Transactions on communications, vol. 46, no. 4, pp. 431–436, 1998. doi:10.1109/26.664294.
Y. Wang, M. Liu, J. Yang, and G. Gui, “Data-driven deep learning for automatic modulation recognition in cognitive radios,” IEEE
Transactions on Vehicular Technology, vol. 68, no. 4, pp. 4074–4077, 2019. doi:10.1109/TVT.2019.2900460.
Y. Zeng, M. Zhang, F. Han, Y. Gong, and J. Zhang, “Spectrum analysis and convolutional neural network for automatic modulation recognition,” IEEE Wireless Communications Letters, vol. 8, no. 3, pp. 929–932, 2019. doi:10.1109/LWC.2019.2900247.
N. E. West and T. O’shea, “Deep architectures for modulation recognition,” in 2017 IEEE international symposium on dynamic spectrum access networks (DySPAN). IEEE, 2017, pp. 1–6. doi: 10.1109/DySPAN.2017.7 920 754.
P. Qi, X. Zhou, S. Zheng, and Z. Li, “Automatic modulation classification based on deep residual networks with multimodal information,” IEEE Transactions on Cognitive Communications and Networking, vol. 7, no. 1, pp. 21–33, 2021. doi:10.1109/TCCN.2020.3023145.
Y. Wang, J. Yang, M. Liu, and G. Gui, “LightAMC: Lightweight automatic modulation classification via deep learning and compressive
sensing,” IEEE Transactions on Vehicular Technology, vol. 69, no. 3, pp. 3491–3495, 2020. doi:10.1109/TVT.2020.2971001.
L. Guo, Y. Wang, Y. Liu, Y. Lin, H. Zhao, and G. Gui, “Ultralight convolutional neural network for automatic modulation classification in internet of unmanned aerial vehicles,” IEEE Internet of Things Journal, vol. 11, no. 11, pp. 20 831–20 839, 2024. doi:10.1109/JIOT.2024.3373497.
S. Ramjee, S. Ju, D. Yang, X. Liu, A. E. Gamal, and Y. C. Eldar, “Fast deep learning for automatic modulation classification,” arXiv preprintarXiv:1901.05850, 2019. doi:10.48550/arXiv.1901.05850.
H. Yang, L. Zhao, G. Yue, B. Ma, and W. Li, “Irlnet: A short-time and robust architecture for automatic modulation recognition,” IEEE Access, vol. 9, pp. 143 661–143 676, 2021. doi:10.1109/ACCESS.2021.3121762.