An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron Network

With the development of deep learning, fingerprints recognition based on neural networks is a widely used method in indoor localization. In this paper, we build a long short-term memory (LSTM) recurrent neuron network to make regression between fingerprints and locations in order to track the moving...

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Main Authors: Bo Xu, Xiaorong Zhu, Hongbo Zhu
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8815691/
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author Bo Xu
Xiaorong Zhu
Hongbo Zhu
author_facet Bo Xu
Xiaorong Zhu
Hongbo Zhu
author_sort Bo Xu
collection DOAJ
description With the development of deep learning, fingerprints recognition based on neural networks is a widely used method in indoor localization. In this paper, we build a long short-term memory (LSTM) recurrent neuron network to make regression between fingerprints and locations in order to track the moving target. Simulations are in a BLE5.0 based environment and we use received signal strength indication (RSSI) as the element of fingerprints. Since the preparation of fingerprints is an inevitable and time-consuming process in the testing phase of LSTM, we propose two methods to improve the real-time performance of the localization without changing the structure of LSTM. A decentralized sorting algorithm is proposed to divide the received RSSI signals into multiple parts based on the MAC address of BLE5.0 equipment and use GPUs to sort each part. A complete fingerprint is a combination of these parts. Then, an optimization model aimed at maximum localization accuracy and minimal time used in the testing process of LSTM is proposed by changing the length of fingerprints. Many experiments simulated in different trajectories show that LSTM is more accurate in localization than many other neural networks. Further results demonstrate that using decentralized fingerprints preparation and finding an optimal fingerprint length can keep balance between the localization accuracy and real-time performance.
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spelling doaj.art-53608ac20fa4456fb759259f8ea74ade2022-12-21T23:26:20ZengIEEEIEEE Access2169-35362019-01-01712391212392110.1109/ACCESS.2019.29378318815691An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron NetworkBo Xu0https://orcid.org/0000-0003-4147-0263Xiaorong Zhu1Hongbo Zhu2Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, ChinaJiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, ChinaJiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, ChinaWith the development of deep learning, fingerprints recognition based on neural networks is a widely used method in indoor localization. In this paper, we build a long short-term memory (LSTM) recurrent neuron network to make regression between fingerprints and locations in order to track the moving target. Simulations are in a BLE5.0 based environment and we use received signal strength indication (RSSI) as the element of fingerprints. Since the preparation of fingerprints is an inevitable and time-consuming process in the testing phase of LSTM, we propose two methods to improve the real-time performance of the localization without changing the structure of LSTM. A decentralized sorting algorithm is proposed to divide the received RSSI signals into multiple parts based on the MAC address of BLE5.0 equipment and use GPUs to sort each part. A complete fingerprint is a combination of these parts. Then, an optimization model aimed at maximum localization accuracy and minimal time used in the testing process of LSTM is proposed by changing the length of fingerprints. Many experiments simulated in different trajectories show that LSTM is more accurate in localization than many other neural networks. Further results demonstrate that using decentralized fingerprints preparation and finding an optimal fingerprint length can keep balance between the localization accuracy and real-time performance.https://ieeexplore.ieee.org/document/8815691/Indoor localizationBLE5.0fingerprintreceived signal strength indicationlong short-term memory recurrent neuron network
spellingShingle Bo Xu
Xiaorong Zhu
Hongbo Zhu
An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron Network
IEEE Access
Indoor localization
BLE5.0
fingerprint
received signal strength indication
long short-term memory recurrent neuron network
title An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron Network
title_full An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron Network
title_fullStr An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron Network
title_full_unstemmed An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron Network
title_short An Efficient Indoor Localization Method Based on the Long Short-Term Memory Recurrent Neuron Network
title_sort efficient indoor localization method based on the long short term memory recurrent neuron network
topic Indoor localization
BLE5.0
fingerprint
received signal strength indication
long short-term memory recurrent neuron network
url https://ieeexplore.ieee.org/document/8815691/
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