Transfer Learning and Double U-Net Empowered Wave Propagation Model in Complex Indoor Environment

Fuente: arXiv
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Autores principales: Fu, Ziheng, Mukherjee, Swagato, Lanagan, Michael T., Mitra, Prasenjit, Chawla, Tarun, Narayanan, Ram M.
Formato: Preprint
Publicado: 2024
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author Fu, Ziheng
Mukherjee, Swagato
Lanagan, Michael T.
Mitra, Prasenjit
Chawla, Tarun
Narayanan, Ram M.
author_facet Fu, Ziheng
Mukherjee, Swagato
Lanagan, Michael T.
Mitra, Prasenjit
Chawla, Tarun
Narayanan, Ram M.
contents A Machine Learning (ML) network based on transfer learning and transformer networks is applied to wave propagation models for complex indoor settings. This network is designed to predict signal propagation in environments with a variety of objects, effectively simulating the diverse range of furniture typically found in indoor spaces. We propose Attention U-Net with Efficient Networks as the backbone, to process images encoded with the essential information of the indoor environment. The indoor environment is defined by its fundamental structure, such as the arrangement of walls, windows, and doorways, alongside varying configurations of furniture placement. An innovative algorithm is introduced to generate a 3D environment from a 2D floorplan, which is crucial for efficient collection of data for training. The model is evaluated by comparing the predicted signal coverage map with ray tracing (RT) simulations. The prediction results show a root mean square error of less than 6 dB across all tested scenarios, with significant improvements observed when using a Double U-Net structure compared to a single U-Net model.
format Preprint
id arxiv_https___arxiv_org_abs_2409_13833
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Transfer Learning and Double U-Net Empowered Wave Propagation Model in Complex Indoor Environment
Fu, Ziheng
Mukherjee, Swagato
Lanagan, Michael T.
Mitra, Prasenjit
Chawla, Tarun
Narayanan, Ram M.
Signal Processing
A Machine Learning (ML) network based on transfer learning and transformer networks is applied to wave propagation models for complex indoor settings. This network is designed to predict signal propagation in environments with a variety of objects, effectively simulating the diverse range of furniture typically found in indoor spaces. We propose Attention U-Net with Efficient Networks as the backbone, to process images encoded with the essential information of the indoor environment. The indoor environment is defined by its fundamental structure, such as the arrangement of walls, windows, and doorways, alongside varying configurations of furniture placement. An innovative algorithm is introduced to generate a 3D environment from a 2D floorplan, which is crucial for efficient collection of data for training. The model is evaluated by comparing the predicted signal coverage map with ray tracing (RT) simulations. The prediction results show a root mean square error of less than 6 dB across all tested scenarios, with significant improvements observed when using a Double U-Net structure compared to a single U-Net model.
title Transfer Learning and Double U-Net Empowered Wave Propagation Model in Complex Indoor Environment
topic Signal Processing
url https://arxiv.org/abs/2409.13833