Tracking daily paths in home contexts with RSSI fingerprinting based on UWB through deep learning models
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912575752503296 |
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| author | Polo-Rodríguez, Aurora Valera, Juan Carlos Peral, Jesús Gil, David Medina-Quero, Javier |
| author_facet | Polo-Rodríguez, Aurora Valera, Juan Carlos Peral, Jesús Gil, David Medina-Quero, Javier |
| contents | The field of human activity recognition has evolved significantly, driven largely by advancements in Internet of Things (IoT) device technology, particularly in personal devices. This study investigates the use of ultra-wideband (UWB) technology for tracking inhabitant paths in home environments using deep learning models. UWB technology estimates user locations via time-of-flight and time-difference-of-arrival methods, which are significantly affected by the presence of walls and obstacles in real environments, reducing their precision. To address these challenges, we propose a fingerprinting-based approach utilizing received signal strength indicator (RSSI) data collected from inhabitants in two flats (60 m2 and 100 m2) while performing daily activities. We compare the performance of convolutional neural network (CNN), long short-term memory (LSTM), and hybrid CNN+LSTM models, as well as the use of Bluetooth technology. Additionally, we evaluate the impact of the type and duration of the temporal window (future, past, or a combination of both). Our results demonstrate a mean absolute error close to 50 cm, highlighting the superiority of the hybrid model in providing accurate location estimates, thus facilitating its application in daily human activity recognition in residential settings. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_06161 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Tracking daily paths in home contexts with RSSI fingerprinting based on UWB through deep learning models Polo-Rodríguez, Aurora Valera, Juan Carlos Peral, Jesús Gil, David Medina-Quero, Javier Machine Learning Artificial Intelligence I.2.0 The field of human activity recognition has evolved significantly, driven largely by advancements in Internet of Things (IoT) device technology, particularly in personal devices. This study investigates the use of ultra-wideband (UWB) technology for tracking inhabitant paths in home environments using deep learning models. UWB technology estimates user locations via time-of-flight and time-difference-of-arrival methods, which are significantly affected by the presence of walls and obstacles in real environments, reducing their precision. To address these challenges, we propose a fingerprinting-based approach utilizing received signal strength indicator (RSSI) data collected from inhabitants in two flats (60 m2 and 100 m2) while performing daily activities. We compare the performance of convolutional neural network (CNN), long short-term memory (LSTM), and hybrid CNN+LSTM models, as well as the use of Bluetooth technology. Additionally, we evaluate the impact of the type and duration of the temporal window (future, past, or a combination of both). Our results demonstrate a mean absolute error close to 50 cm, highlighting the superiority of the hybrid model in providing accurate location estimates, thus facilitating its application in daily human activity recognition in residential settings. |
| title | Tracking daily paths in home contexts with RSSI fingerprinting based on UWB through deep learning models |
| topic | Machine Learning Artificial Intelligence I.2.0 |
| url | https://arxiv.org/abs/2509.06161 |