WiFiNet: WiFi-based indoor localisation using CNNs

Different technologies have been proposed to provide indoor localisation: magnetic field, Bluetooth, WiFi, etc. Among them, WiFi is the one with the highest availability and highest accuracy. This fact allows for an ubiquitous accurate localisation available for almost any environment and any device...

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Detalhes bibliográficos
Autores: Hernández Parra, Noelia|||0000-0002-6644-9498, Parra Alonso, Ignacio|||0000-0002-3889-018X, Corrales Sánchez, Héctor|||0000-0003-0240-0246, Izquierdo Gonzalo, Rubén|||0000-0002-6722-3036, Ballardini, Augusto Luis|||0000-0001-6688-5081, Salinas Maldonado, Carlota|||0000-0003-2330-1001, García Daza, Iván|||0000-0001-8940-6434
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Universidad de Alcalá (UAH)
Repositorio:e_Buah Biblioteca Digital Universidad de Alcalá
Idioma:inglés
OAI Identifier:oai:ebuah.uah.es:10017/47268
Acesso em linha:http://hdl.handle.net/10017/47268
https://dx.doi.org/10.1016/j.eswa.2021.114906
Access Level:acceso abierto
Palavra-chave:Indoor localisation
WiFi
Fingerprinting
Deep Learning
Telecomunicaciones
Telecommunication
Descrição
Resumo:Different technologies have been proposed to provide indoor localisation: magnetic field, Bluetooth, WiFi, etc. Among them, WiFi is the one with the highest availability and highest accuracy. This fact allows for an ubiquitous accurate localisation available for almost any environment and any device. However, WiFi-based localisation is still an open problem. In this article, we propose a new WiFi-based indoor localisation system that takes advantage of the great ability of Convolutional Neural Networks in classification problems. Three different approaches were used to achieve this goal: a custom architecture called WiFiNet, designed and trained specifically to solve this problem, and the most popular pre-trained networks using both transfer learning and feature extraction. Results indicate that WiFiNet is as a great approach for indoor localisation in a medium-sized environment (30 positions and 113 access points) as it reduces the mean localisation error (33%) and the processing time when compared with state-of-the-art WiFi indoor localisation algorithms such as SVM.