Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure Reconstruction

Electromagnetic field exposure (EMF) has grown to be a critical concern as a consequence of the ongoing installation of fifth-generation cellular networks (5G). The lack of measurements makes it difficult to accurately assess the EMF in a specific urban area, as Spectrum cartography (SC) relies on a...

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Main Authors: Mohammed Mallik, Benjamin Allaert, Esteban Egea-Lopez, Davy P. Gaillot, Joe Wiart, Laurent Clavier
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10478001/
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author Mohammed Mallik
Benjamin Allaert
Esteban Egea-Lopez
Davy P. Gaillot
Joe Wiart
Laurent Clavier
author_facet Mohammed Mallik
Benjamin Allaert
Esteban Egea-Lopez
Davy P. Gaillot
Joe Wiart
Laurent Clavier
author_sort Mohammed Mallik
collection DOAJ
description Electromagnetic field exposure (EMF) has grown to be a critical concern as a consequence of the ongoing installation of fifth-generation cellular networks (5G). The lack of measurements makes it difficult to accurately assess the EMF in a specific urban area, as Spectrum cartography (SC) relies on a set of measurements recorded by spatially distributed sensors for the generation of exposure maps. However, when the spatial sampling rate is limited, significant estimation errors occur. To overcome this issue, the exposure map estimation is addressed as a missing data imputation task. We compute a convolutional neural tangent kernel (CNTK) for an infinitely wide convolutional neural network whose training dynamics can be completely described by a closed-form formula. This CNTK is employed to impute the target matrix and estimate EMF exposure from few sensors sparsely located in an urban environment. Experimental results show that the kernel, even when only sparse sensor data are available, can produce accurate estimates. It is a promising solution for exposure map reconstruction that does not require large training sets. The proposed method is compared with other deep learning approaches and Gaussian Process regression.
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spelling doaj.art-c008967fc8634dbc8ac19f7ab33fe8de2024-04-18T23:00:29ZengIEEEIEEE Access2169-35362024-01-0112494764948810.1109/ACCESS.2024.338083510478001Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure ReconstructionMohammed Mallik0https://orcid.org/0000-0003-1854-9483Benjamin Allaert1https://orcid.org/0000-0002-4291-9803Esteban Egea-Lopez2https://orcid.org/0000-0002-6926-4923Davy P. Gaillot3https://orcid.org/0000-0003-3455-5824Joe Wiart4https://orcid.org/0000-0002-8902-5778Laurent Clavier5https://orcid.org/0000-0002-3279-930XIMT Nord Europe, Lille, FranceIMT Nord Europe, Lille, FranceDepartment of Information Technologies and Communications, Universidad Politécnica de Cartagena (UPCT), Cartagena, SpainCNRS, UMR 8520-IEMN, Université de Lille, Lille, FranceChaire C2M, LTCI, Télécom Paris, Institut Polytechnique de Paris, Palaiseau, FranceIMT Nord Europe, Lille, FranceElectromagnetic field exposure (EMF) has grown to be a critical concern as a consequence of the ongoing installation of fifth-generation cellular networks (5G). The lack of measurements makes it difficult to accurately assess the EMF in a specific urban area, as Spectrum cartography (SC) relies on a set of measurements recorded by spatially distributed sensors for the generation of exposure maps. However, when the spatial sampling rate is limited, significant estimation errors occur. To overcome this issue, the exposure map estimation is addressed as a missing data imputation task. We compute a convolutional neural tangent kernel (CNTK) for an infinitely wide convolutional neural network whose training dynamics can be completely described by a closed-form formula. This CNTK is employed to impute the target matrix and estimate EMF exposure from few sensors sparsely located in an urban environment. Experimental results show that the kernel, even when only sparse sensor data are available, can produce accurate estimates. It is a promising solution for exposure map reconstruction that does not require large training sets. The proposed method is compared with other deep learning approaches and Gaussian Process regression.https://ieeexplore.ieee.org/document/10478001/5G EMF exposurekernel regressionneural tangent kernelinfinite width convolutional neural networksemi-supervised learning
spellingShingle Mohammed Mallik
Benjamin Allaert
Esteban Egea-Lopez
Davy P. Gaillot
Joe Wiart
Laurent Clavier
Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure Reconstruction
IEEE Access
5G EMF exposure
kernel regression
neural tangent kernel
infinite width convolutional neural network
semi-supervised learning
title Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure Reconstruction
title_full Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure Reconstruction
title_fullStr Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure Reconstruction
title_full_unstemmed Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure Reconstruction
title_short Infinite Limits of Convolutional Neural Network for Urban Electromagnetic Field Exposure Reconstruction
title_sort infinite limits of convolutional neural network for urban electromagnetic field exposure reconstruction
topic 5G EMF exposure
kernel regression
neural tangent kernel
infinite width convolutional neural network
semi-supervised learning
url https://ieeexplore.ieee.org/document/10478001/
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