A framework for locating multiple RFID tags using RF hologram tensors

In this paper, we present a Deep Neural Network (DNN) based framework that employs Radio Frequency (RF) hologram tensors to locate multiple Ultra-High Frequency (UHF) passive Radio-Frequency Identification (RFID) tags. The RF hologram tensor exhibits a strong relationship between observation and spa...

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Main Authors: Xiangyu Wang, Jian Zhang, Shiwen Mao, Senthilkumar CG Periaswamy, Justin Patton
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-04-01
Series:Digital Communications and Networks
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Online Access:http://www.sciencedirect.com/science/article/pii/S2352864823001803
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author Xiangyu Wang
Jian Zhang
Shiwen Mao
Senthilkumar CG Periaswamy
Justin Patton
author_facet Xiangyu Wang
Jian Zhang
Shiwen Mao
Senthilkumar CG Periaswamy
Justin Patton
author_sort Xiangyu Wang
collection DOAJ
description In this paper, we present a Deep Neural Network (DNN) based framework that employs Radio Frequency (RF) hologram tensors to locate multiple Ultra-High Frequency (UHF) passive Radio-Frequency Identification (RFID) tags. The RF hologram tensor exhibits a strong relationship between observation and spatial location, helping to improve the robustness to dynamic environments and equipment. Since RFID data is often marred by noise, we implement two types of deep neural network architectures to clean up the RF hologram tensor. Leveraging the spatial relationship between tags, the deep networks effectively mitigate fake peaks in the hologram tensors resulting from multipath propagation and phase wrapping. In contrast to fingerprinting-based localization systems that use deep networks as classifiers, our deep networks in the proposed framework treat the localization task as a regression problem preserving the ambiguity between fingerprints. We also present an intuitive peak finding algorithm to obtain estimated locations using the sanitized hologram tensors. The proposed framework is implemented using commodity RFID devices, and its superior performance is validated through extensive experiments.
format Article
id doaj-art-243e204bc6f74b98b6de97d1bda1bdfc
institution Kabale University
issn 2352-8648
language English
publishDate 2025-04-01
publisher KeAi Communications Co., Ltd.
record_format Article
series Digital Communications and Networks
spelling doaj-art-243e204bc6f74b98b6de97d1bda1bdfc2025-08-20T03:49:03ZengKeAi Communications Co., Ltd.Digital Communications and Networks2352-86482025-04-0111233734810.1016/j.dcan.2023.12.004A framework for locating multiple RFID tags using RF hologram tensorsXiangyu Wang0Jian Zhang1Shiwen Mao2Senthilkumar CG Periaswamy3Justin Patton4Dept. of Electrical and Computer Engineering, Auburn University, Auburn, AL 36849-5201, USA; RFID Lab, Auburn University, Auburn, AL 36849, USADepartment of Electrical and Computer Engineering, Kennesaw State University, Kennesaw, GA 30144, USADept. of Electrical and Computer Engineering, Auburn University, Auburn, AL 36849-5201, USA; Corresponding author.RFID Lab, Auburn University, Auburn, AL 36849, USARFID Lab, Auburn University, Auburn, AL 36849, USAIn this paper, we present a Deep Neural Network (DNN) based framework that employs Radio Frequency (RF) hologram tensors to locate multiple Ultra-High Frequency (UHF) passive Radio-Frequency Identification (RFID) tags. The RF hologram tensor exhibits a strong relationship between observation and spatial location, helping to improve the robustness to dynamic environments and equipment. Since RFID data is often marred by noise, we implement two types of deep neural network architectures to clean up the RF hologram tensor. Leveraging the spatial relationship between tags, the deep networks effectively mitigate fake peaks in the hologram tensors resulting from multipath propagation and phase wrapping. In contrast to fingerprinting-based localization systems that use deep networks as classifiers, our deep networks in the proposed framework treat the localization task as a regression problem preserving the ambiguity between fingerprints. We also present an intuitive peak finding algorithm to obtain estimated locations using the sanitized hologram tensors. The proposed framework is implemented using commodity RFID devices, and its superior performance is validated through extensive experiments.http://www.sciencedirect.com/science/article/pii/S2352864823001803Radio-frequency identification (RFID)Ultra-high frequency (UHF) passive RFID tagRF hologram tensorIndoor localizationDeep learning (DL)Swin Transformer
spellingShingle Xiangyu Wang
Jian Zhang
Shiwen Mao
Senthilkumar CG Periaswamy
Justin Patton
A framework for locating multiple RFID tags using RF hologram tensors
Digital Communications and Networks
Radio-frequency identification (RFID)
Ultra-high frequency (UHF) passive RFID tag
RF hologram tensor
Indoor localization
Deep learning (DL)
Swin Transformer
title A framework for locating multiple RFID tags using RF hologram tensors
title_full A framework for locating multiple RFID tags using RF hologram tensors
title_fullStr A framework for locating multiple RFID tags using RF hologram tensors
title_full_unstemmed A framework for locating multiple RFID tags using RF hologram tensors
title_short A framework for locating multiple RFID tags using RF hologram tensors
title_sort framework for locating multiple rfid tags using rf hologram tensors
topic Radio-frequency identification (RFID)
Ultra-high frequency (UHF) passive RFID tag
RF hologram tensor
Indoor localization
Deep learning (DL)
Swin Transformer
url http://www.sciencedirect.com/science/article/pii/S2352864823001803
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