An Efficient Method for BLE Indoor Localization Using Signal Fingerprint

Bibliographic Details
Title: An Efficient Method for BLE Indoor Localization Using Signal Fingerprint
Authors: Trong-Thanh Han, Phuc Nguyen Dinh, Toan Nguyen Duc, Vu Nguyen Long, Hung Dinh Tan
Source: EAI Endorsed Transactions on Industrial Networks and Intelligent Systems, Vol 12, Iss 1 (2024)
Publisher Information: European Alliance for Innovation (EAI), 2024.
Publication Year: 2024
Collection: LCC:Computer engineering. Computer hardware
LCC:Systems engineering
Subject Terms: Indoor Localization, Fingerprint, Bluetooth Low Energy, Autoencoder, Computer engineering. Computer hardware, TK7885-7895, Systems engineering, TA168
More Details: The rise of Bluetooth Low Energy (BLE) technology has opened new possibilities for indoor localization systems. However, extracting fingerprint features from the Received Signal Strength Indicator (RSSI) of BLE signals often encounters challenges due to significant errors and fluctuations. This research proposes an approach that integrates signal filtering and deep learning techniques to improve accuracy and stability. A Kalman filter is employed to smooth the RSSI values, while Autoencoder and Convolutional Autoencoder models are utilized to extract distinctive fingerprint features. The system compares random test points with a reference database using normalized cross-correlation. Performance is assessed based on metrics such as the number of reference points with the highest cross-correlation (), average localization error, and other statistical indicators. Experimental results show that the combination of the Kalman filter with the Convolutional Autoencoder model achieves an average error of 0.98 meters with . These findings indicate that this approach effectively reduces signal noise and enhances localization accuracy in indoor environments.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2410-0218
Relation: https://publications.eai.eu/index.php/inis/article/view/6571; https://doaj.org/toc/2410-0218
DOI: 10.4108/eetinis.v12i1.6571
Access URL: https://doaj.org/article/36cce76dcafd45a7931bdbd266980b6f
Accession Number: edsdoj.36cce76dcafd45a7931bdbd266980b6f
Database: Directory of Open Access Journals
More Details
ISSN:24100218
DOI:10.4108/eetinis.v12i1.6571
Published in:EAI Endorsed Transactions on Industrial Networks and Intelligent Systems
Language:English