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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

Modern indoor localization techniques are essential to overcome the weak GPS coverage in indoor environments. Recently, considerable progress has been made in Channel State Information (CSI) based indoor localization with signal…

Signal Processing · Electrical Eng. & Systems 2022-05-18 Liping Wang , Sudeep Pasricha

With the fast growing demand of location-based services in indoor environments, indoor positioning based on fingerprinting has attracted a lot of interest due to its high accuracy. In this paper, we present a novel deep learning based…

Networking and Internet Architecture · Computer Science 2016-03-24 Xuyu Wang , Lingjun Gao , Shiwen Mao , Santosh Pandey

Deep learning has been widely adopted for channel state information (CSI)-fingerprinting indoor localization systems. These systems usually consist of two main parts, i.e., a positioning network that learns the mapping from high-dimensional…

Signal Processing · Electrical Eng. & Systems 2023-10-11 Bowen Zhang , Houssem Sifaou , Geoffrey Ye Li

Wireless localization for mobile device has attracted more and more interests by increasing the demand for location based services. Fingerprint-based localization is promising, especially in non-Line-of-Sight (NLoS) or rich scattering…

Signal Processing · Electrical Eng. & Systems 2019-07-02 Heng Zhang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao

Traditional global positioning systems often underperform indoors, whereas Wi-Fi has become an effective medium for various radio sensing services. Specifically, utilizing channel state information (CSI) from Wi-Fi networks provides a…

Signal Processing · Electrical Eng. & Systems 2024-12-04 Pei Tang , Jingtao Guo , Ivan Wang-Hei Ho

Indoor localization is getting increasing demands for various cutting-edged technologies, like Virtual/Augmented reality and smart home. Traditional model-based localization suffers from significant computational overhead, so fingerprint…

Signal Processing · Electrical Eng. & Systems 2023-09-26 Ruihao Yuan , Kaixuan Huang , Pan Yang , Shunqing Zhang

Accurate and robust wireless localization is a key enabler for a wide range of mobile computing applications. Fingerprint-based localization using channel state information (CSI) has attracted significant attention due to its high accuracy…

Signal Processing · Electrical Eng. & Systems 2026-03-09 Haoyu Huang , Guangjin Pan , Kaixuan Huang , Shunqing Zhang , Yuhao Zhang , Musa Furkan Keskin , Zheng Xing , Henk Wymeersch

Channel state information (CSI)-based fingerprinting via neural networks (NNs) is a promising approach to enable accurate indoor and outdoor positioning of user equipments (UEs), even under challenging propagation conditions. In this paper,…

Signal Processing · Electrical Eng. & Systems 2021-09-01 Emre Gönültaş , Eric Lei , Jack Langerman , Howard Huang , Christoph Studer

Given the rapid advancements in wireless communication and terminal devices, high-speed and convenient WiFi has permeated various aspects of people's lives, and attention has been drawn to the location services that WiFi can provide.…

Signal Processing · Electrical Eng. & Systems 2023-07-03 Jiyu Jiao , Xiaojun Wang , Chenlin He

While fingerprinting localization is favored for its effectiveness, it is hindered by high data acquisition costs and the inaccuracy of static database-based estimates. Addressing these issues, this letter presents an innovative indoor…

Machine Learning · Computer Science 2024-01-12 Jiyu Jiao , Xiaojun Wang , Chenpei Han , Yuhua Huang , Yizhuo Zhang

Recent years have witnessed the rapid development in the research topic of WiFi sensing that automatically senses human with commercial WiFi devices. This work falls into two major categories, i.e., the activity recognition and the indoor…

Human-Computer Interaction · Computer Science 2019-07-22 Fei Wang , Jianwei Feng , Yinliang Zhao , Xiaobin Zhang , Shiyuan Zhang , Jinsong Han

Fingerprinting-based positioning significantly improves the indoor localization performance in non-line-of-sight-dominated areas. However, its deployment and maintenance is cost-intensive as it needs ground-truth reference systems for both…

Signal Processing · Electrical Eng. & Systems 2022-10-13 Maximilian Stahlke , George Yammine , Tobias Feigl , Bjoern M. Eskofier , Christopher Mutschler

Recent channel state information (CSI)-based positioning pipelines rely on deep neural networks (DNNs) in order to learn a mapping from estimated CSI to position. Since real-world communication transceivers suffer from hardware impairments,…

Information Theory · Computer Science 2021-12-01 Emre Gönültaş , Sueda Taner , Howard Huang , Christoph Studer

Recent localization frameworks exploit spatial information of complex channel measurements (CMs) to estimate accurate positions even in multipath propagation scenarios. State-of-the art CM fingerprinting(FP)-based methods employ…

Signal Processing · Electrical Eng. & Systems 2022-03-25 Sebastian Kram , Christopher Kraus , Tobias Feigl , Maximilian Stahlke , Jörg Robert , Christopher Mutschler

Indoor position technology has become one of the research highlights in the Internet of Things (IoT), but there is still a lack of universal, low-cost, and high-precision solutions. This paper conducts research on indoor position technology…

Networking and Internet Architecture · Computer Science 2026-02-03 Chunyi Zhang , Zongwei Li , Xiaoqi Li

Modern techniques in the Internet of Things or autonomous driving require more accuracy positioning ever. Classic location techniques mainly adapt to outdoor scenarios, while they do not meet the requirement of indoor cases with multiple…

Signal Processing · Electrical Eng. & Systems 2020-02-05 Jianyuan Yu , R. Michael Buehrer

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)…

Machine Learning · Computer Science 2025-09-09 Aurora Polo-Rodríguez , Juan Carlos Valera , Jesús Peral , David Gil , Javier Medina-Quero

Simultaneous localization and mapping (SLAM) has been richly researched in past years particularly with regard to range-based or visual-based sensors. Instead of deploying dedicated devices that use visual features, it is more pragmatic to…

This paper proposes recurrent neuron networks (RNNs) for a fingerprinting indoor localization using WiFi. Instead of locating user's position one at a time as in the cases of conventional algorithms, our RNN solution aims at trajectory…

Signal Processing · Electrical Eng. & Systems 2022-11-09 Minh Tu Hoang , Brosnan Yuen , Xiaodai Dong , Tao Lu , Robert Westendorp , Kishore Reddy
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