Edge Learning Based Collaborative Automatic Modulation Classification for Hierarchical Cognitive Radio Networks

Fuente: arXiv
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Autori principali: Dong, Peihao, He, Chaowei, Gao, Shen, Zhou, Fuhui, Wu, Qihui
Natura: Preprint
Pubblicazione: 2024
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author Dong, Peihao
He, Chaowei
Gao, Shen
Zhou, Fuhui
Wu, Qihui
author_facet Dong, Peihao
He, Chaowei
Gao, Shen
Zhou, Fuhui
Wu, Qihui
contents In hierarchical cognitive radio networks, edge or cloud servers utilize the data collected by edge devices for modulation classification, which, however, is faced with problems of the computation load, transmission overhead, and data privacy. In this article, an edge learning (EL) based framework jointly mobilizing the edge device and the edge server for intelligent co-inference is proposed to realize the collaborative automatic modulation classification (C-AMC) between them. A spectrum semantic compression neural network is designed for the edge device to compress the collected raw data into a compact semantic embedding that is then sent to the edge server via the wireless channel. On the edge server side, a modulation classification neural network combining the bidirectional long-short term memory and attention structures is elaborated to determine the modulation type from the noisy semantic embedding. The C-AMC framework decently balances the computation resources of both sides while avoiding the high transmission overhead and data privacy leakage. Both the offline and online training procedures of the C-AMC framework are elaborated. The compression strategy of the C-AMC framework is also developed to further facilitate the deployment, especially for the resource-constrained edge device. Simulation results show the superiority of the EL-based C-AMC framework in terms of the classification accuracy, computational complexity, and the data compression rate as well as reveal useful insights paving the practical implementation.
format Preprint
id arxiv_https___arxiv_org_abs_2407_20772
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Edge Learning Based Collaborative Automatic Modulation Classification for Hierarchical Cognitive Radio Networks
Dong, Peihao
He, Chaowei
Gao, Shen
Zhou, Fuhui
Wu, Qihui
Signal Processing
Networking and Internet Architecture
In hierarchical cognitive radio networks, edge or cloud servers utilize the data collected by edge devices for modulation classification, which, however, is faced with problems of the computation load, transmission overhead, and data privacy. In this article, an edge learning (EL) based framework jointly mobilizing the edge device and the edge server for intelligent co-inference is proposed to realize the collaborative automatic modulation classification (C-AMC) between them. A spectrum semantic compression neural network is designed for the edge device to compress the collected raw data into a compact semantic embedding that is then sent to the edge server via the wireless channel. On the edge server side, a modulation classification neural network combining the bidirectional long-short term memory and attention structures is elaborated to determine the modulation type from the noisy semantic embedding. The C-AMC framework decently balances the computation resources of both sides while avoiding the high transmission overhead and data privacy leakage. Both the offline and online training procedures of the C-AMC framework are elaborated. The compression strategy of the C-AMC framework is also developed to further facilitate the deployment, especially for the resource-constrained edge device. Simulation results show the superiority of the EL-based C-AMC framework in terms of the classification accuracy, computational complexity, and the data compression rate as well as reveal useful insights paving the practical implementation.
title Edge Learning Based Collaborative Automatic Modulation Classification for Hierarchical Cognitive Radio Networks
topic Signal Processing
Networking and Internet Architecture
url https://arxiv.org/abs/2407.20772