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Enhancing the Accuracy of CSI-Based Positioning in Massive MIMO Systems

Nada, Ali ; Ali, Hazem Ismail ; Liu, Liang LU orcid and Alkabani, Yousra (2023) 2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023 In 2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023 p.90-95
Abstract

Massive Multiple-Input Multiple-Output (MIMO) communication systems are being investigated intensively for positioning services. Enhancing the accuracy on these services in terms of accurate positioning of users is an important goal to improve related applications in the future. Convolutional Neural Networks (CNNs) has been proposed to infer the position of a user from Channel State Information (CSI) of a massive MIMO system. This paper investigates different architectures of CNNs to enhance the accuracy of a fingerprint-based positionina system. Three new CNNs has been proposed in which the Convolutional Layer (CL) and the Fully Connected (FC) layer are re-dimensioned. Batch Normalization (BN) layer is introduced to the layer structure... (More)

Massive Multiple-Input Multiple-Output (MIMO) communication systems are being investigated intensively for positioning services. Enhancing the accuracy on these services in terms of accurate positioning of users is an important goal to improve related applications in the future. Convolutional Neural Networks (CNNs) has been proposed to infer the position of a user from Channel State Information (CSI) of a massive MIMO system. This paper investigates different architectures of CNNs to enhance the accuracy of a fingerprint-based positionina system. Three new CNNs has been proposed in which the Convolutional Layer (CL) and the Fully Connected (FC) layer are re-dimensioned. Batch Normalization (BN) layer is introduced to the layer structure of the newly proposed CNNs. The CNNs were trained, and accordingly mean error is measured. The first re-constructed CNN composed of 13 CLs, 7 BNs, and 3 FC layers has achieved the best accuracy out of the three models. It managed to achieve a mean error of 10.09 mm, that outperforms a similar work by 82 % in terms of positioning accuracy. Pruning was added to the layer structure of the newly proposed CNN s. It reduced the model size significantly, approximately by 65 % compared to a similar model of previous work.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Batch Normalization, Convolutional Neural Networks, Model Size, Positioning Accuracy, Pruning
host publication
2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023
series title
2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023
pages
6 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023
conference location
Istanbul, Turkey
conference dates
2023-07-04 - 2023-07-07
external identifiers
  • scopus:85179004423
ISBN
9798350337822
DOI
10.1109/BlackSeaCom58138.2023.10299742
language
English
LU publication?
yes
id
e3427e49-c86a-45cd-a9c7-2ae82d8e168d
date added to LUP
2024-01-11 15:05:11
date last changed
2024-03-29 06:52:51
@inproceedings{e3427e49-c86a-45cd-a9c7-2ae82d8e168d,
  abstract     = {{<p>Massive Multiple-Input Multiple-Output (MIMO) communication systems are being investigated intensively for positioning services. Enhancing the accuracy on these services in terms of accurate positioning of users is an important goal to improve related applications in the future. Convolutional Neural Networks (CNNs) has been proposed to infer the position of a user from Channel State Information (CSI) of a massive MIMO system. This paper investigates different architectures of CNNs to enhance the accuracy of a fingerprint-based positionina system. Three new CNNs has been proposed in which the Convolutional Layer (CL) and the Fully Connected (FC) layer are re-dimensioned. Batch Normalization (BN) layer is introduced to the layer structure of the newly proposed CNNs. The CNNs were trained, and accordingly mean error is measured. The first re-constructed CNN composed of 13 CLs, 7 BNs, and 3 FC layers has achieved the best accuracy out of the three models. It managed to achieve a mean error of 10.09 mm, that outperforms a similar work by 82 % in terms of positioning accuracy. Pruning was added to the layer structure of the newly proposed CNN s. It reduced the model size significantly, approximately by 65 % compared to a similar model of previous work.</p>}},
  author       = {{Nada, Ali and Ali, Hazem Ismail and Liu, Liang and Alkabani, Yousra}},
  booktitle    = {{2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023}},
  isbn         = {{9798350337822}},
  keywords     = {{Batch Normalization; Convolutional Neural Networks; Model Size; Positioning Accuracy; Pruning}},
  language     = {{eng}},
  pages        = {{90--95}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{2023 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2023}},
  title        = {{Enhancing the Accuracy of CSI-Based Positioning in Massive MIMO Systems}},
  url          = {{http://dx.doi.org/10.1109/BlackSeaCom58138.2023.10299742}},
  doi          = {{10.1109/BlackSeaCom58138.2023.10299742}},
  year         = {{2023}},
}