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Related papers: WiCluster: Passive Indoor 2D/3D Positioning using …

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In this paper we describe three methods for localizing a wireless sensor network node, using anchor nodes in its neighbourhood, when there is an error in distance estimation present. We use the intersection points of the circles formed with…

Networking and Internet Architecture · Computer Science 2012-03-19 Marios Karagiannis , Ioannis Chatzigiannakis , Jose Rolim

WLAN Device-free passive DfP indoor localization is an emerging technology enabling the localization of entities that do not carry any devices nor participate actively in the localization process using the already installed wireless…

Networking and Internet Architecture · Computer Science 2012-02-14 Ahmed E. Kosba , Ahmed Saeed , Moustafa Youssef

Current data-driven Wi-Fi-based indoor localization systems face three critical challenges: protecting user privacy, achieving accurate predictions in dynamic multipath environments, and generalizing across different deployments.…

Cryptography and Security · Computer Science 2025-12-23 Kanishka Roy , Tahsin Fuad Hasan , Chenfeng Wu , Eshwar Vangala , Roshan Ayyalasomayajula

In recent years WiFi became the primary source of information to locate a person or device indoor. Collecting RSSI values as reference measurements with known positions, known as WiFi fingerprinting, is commonly used in various positioning…

Machine Learning · Computer Science 2023-07-18 Kahraman Kostas , Rabia Yasa Kostas , Francisco Zampella , Firas Alsehly

Existing localization methods that intensively leverage the environment-specific received signal strength (RSS) or channel state information (CSI) of wireless signals are rather accurate in certain environments. However, these methods,…

Signal Processing · Electrical Eng. & Systems 2023-08-30 Jun Gao , Dongze Wu , Feng Yin , Qinglei Kong , Lexi Xu , Shuguang Cui

Unsupervised Deep Distance Metric Learning (UDML) aims to learn sample similarities in the embedding space from an unlabeled dataset. Traditional UDML methods usually use the triplet loss or pairwise loss which requires the mining of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-10 Binh X. Nguyen , Binh D. Nguyen , Gustavo Carneiro , Erman Tjiputra , Quang D. Tran , Thanh-Toan Do

Lifelong indoor localization in a given map is the basis for navigation of autonomous mobile robots. In this letter, we address the problem of robust localization in cluttered indoor environments like office spaces and corridors using 3D…

Robotics · Computer Science 2024-12-05 Fujing Xie , Sören Schwertfeger

High-precision positioning is vital for cellular networks to support innovative applications such as extended reality, unmanned aerial vehicles (UAVs), and industrial Internet of Things (IoT) systems. Existing positioning algorithms using…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Shugong Xu , Jun Jiang , Wenjun Yu , Yilin Gao , Guangjin Pan , Shiyi Mu , Zhiqi Ai , Yuan Gao , Peigang Jiang , Cheng-Xiang Wang

As positioning solutions integrate multiple components to improve accuracy, the number of parameters that require calibration has increased. This paper studies a calibration-free positioning technique using Wi-Fi ranging and pedestrian dead…

Networking and Internet Architecture · Computer Science 2020-07-07 Jeongsik Choi , Yang-Seok Choi

Fully supervised change detection methods require difficult to procure pixel-level labels, while weakly supervised approaches can be trained with image-level labels. However, most of these approaches require a combination of changed and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Philipp Andermatt , Radu Timofte

Accurate 3D localization is essential for realizing advanced sensing functionalities in next-generation Wi-Fi communication systems. This study investigates the potential of multistatic localization in Wi-Fi networks through the deployment…

Systems and Control · Electrical Eng. & Systems 2025-05-28 Fuhai Wang , Zhe Li , Rujing Xiong , Tiebin Mi , Robert Caiming Qiu

Large medical imaging datasets can be cheaply and quickly annotated with low-confidence, weak labels (e.g., radiological scores). Access to high-confidence labels, such as histology-based diagnoses, is rare and costly. Pretraining…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Emma Sarfati , Alexandre Bône , Marc-Michel Rohé , Pietro Gori , Isabelle Bloch

Outdoor positioning systems based on the Global Navigation Satellite System have several shortcomings that have deemed their use for indoor positioning impractical. Location fingerprinting, which utilizes machine learning, has emerged as a…

Machine Learning · Computer Science 2022-05-31 Fahad Alhomayani , Mohammad H. Mahoor

As an essential component of logistics automation, the automated loading system is becoming a critical technology for enhancing operational efficiency and safety. Precise automatic positioning of the truck compartment, which serves as the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Guodong Sun , Mingjing Li , Dingjie Liu , Mingxuan Liu , Bo Wu , Yang Zhang

Wearable and IoT devices requiring positioning and localisation services grow in number exponentially every year. This rapid growth also produces millions of data entries that need to be pre-processed prior to being used in any indoor…

Signal Processing · Electrical Eng. & Systems 2022-11-29 Darwin Quezada-Gaibor , Lucie Klus , Joaquín Torres-Sospedra , Elena Simona Lohan , Jari Nurmi , Carlos Granell , Joaquín Huerta

Light detection and ranging (LiDAR) remote sensing encompasses two major directions: data interpretation and parameter inversion. However, both directions rely heavily on costly and labor-intensive labeled data and field measurements, which…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Yuan Gao , Shaobo Xia , Pu Wang , Xiaohuan Xi , Sheng Nie , Cheng Wang

Constructing indoor radio maps traditionally requires extensive site surveys with precise user-location labels, making the calibration process costly and time-consuming. Existing calibration-reduction methods either depend on partial…

Information Theory · Computer Science 2026-05-13 Zheng Xing , Mengru Wu , Yi Zhang , Guanghui Zhang , Jun Gao , Weibing Zhao , Xuhui Zhang , Jinke Ren , Shuguang Cui

This paper proposes a combined network structure between convolutional neural network (CNN) and long-short term memory (LSTM) quantifier for WiFi fingerprinting indoor localization. In contrast to conventional methods that utilize only…

Machine Learning · Computer Science 2025-11-11 Minh Tu Hoang , Brosnan Yuen , Kai Ren , Xiaodai Dong , Tao Lu , Hung Le Nguyen , Robert Westendorp , Kishore Reddy

Indoor positioning is an essential technology for a wide range of applications in GNSS-denied environments, including indoor navigation and IoT systems. Combining convolutional neural networks (CNNs) and magnetic field-based features offers…

Robotics · Computer Science 2026-04-28 Helge Rosé , Konstantin Klipp , Tom Koubek , Bernd Schäufele , Ilja Radusch

Device-free human tracking is an essential ingredient for ubiquitous wireless sensing. Recent passive WiFi tracking systems face the challenges of inaccurate separation of dynamic human components and time-consuming estimation of…

Networking and Internet Architecture · Computer Science 2021-09-14 Zhongqin Wang , J. Andrew Zhang , Min Xu , Y. Jay Guo