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Device-free Wi-Fi indoor localization has received significant attention as a key enabling technology for many Internet of Things (IoT) applications. Machine learning-based location estimators, such as the deep neural network (DNN), carry…

Networking and Internet Architecture · Computer Science 2021-01-29 Shing-Jiuan Liu , Ronald Y. Chang , Feng-Tsun Chien

Device-Free Localization (DFL) is a passive radio method able to detect, estimate, and localize targets (e.g., human or other obstacles) that do not need to carry any electronic device. According to the Integrated Sensing And Communication…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Vittorio Rampa , Federica Fieramosca , Stefano Savazzi , Michele D'Amico

Many localization algorithms and systems have been developed by means of wireless sensor networks for both indoor and outdoor environments. To achieve higher localization accuracy, extra hardware equipments are utilized by most of the…

Networking and Internet Architecture · Computer Science 2016-11-17 Tao Huang , Zhikui Chen , Feng Xia , Cheng Jin , Liang Li

Promising solutions exist today that can accurately track mobile entities indoor using visual inertial odometry in favorable visual conditions, or by leveraging fine-grained ranging (RF, ultrasonic, IR, etc.) to reference anchors. However,…

Networking and Internet Architecture · Computer Science 2022-03-22 Md. Shaifur Rahman , Ayon Chakraborty , Karthikeyan Sunderasan , Sampath Rangarajan

We consider the problem of tracking multiple, unknown, and time-varying numbers of objects using a distributed network of heterogeneous sensors. In an effort to derive a formulation for practical settings, we consider limited and unknown…

Multiagent Systems · Computer Science 2024-09-12 Fei Chen , Hoa Van Nguyen , Alex S. Leong , Sabita Panicker , Robin Baker , Damith C. Ranasinghe

The Internet of Things (IoT) has started to empower the future of many industrial and mass-market applications. Localization techniques are becoming key to add location context to IoT data without human perception and intervention.…

Networking and Internet Architecture · Computer Science 2020-10-06 You Li , Yuan Zhuang , Xin Hu , Zhouzheng Gao , Jia Hu , Long Chen , Zhe He , Ling Pei , Kejie Chen , Maosong Wang , Xiaoji Niu , Ruizhi Chen , John Thompson , Fadhel Ghannouchi , Naser El-Sheimy

In research paper "Accurate estimation of the target location of object with energy constraint & Adaptive Update Algorithms to Save Data" one of the central issues in sensor networks is track the location, of moving object which have…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-08-08 Vijay Bhaskar Semwal , K Susheel Kumar , Vinay S Bhaskar , Meenakshi Sati

Wireless mobile sensor networks (WMSNs) are groups of mobile sensing agents with multi-modal sensing capabilities that communicate over wireless networks. WMSNs have more flexibility in terms of deployment and exploration abilities over…

Other Computer Science · Computer Science 2013-11-28 Anupam Shukla , Gaurav Ojha , Sachin Acharya , Shubham Jain

Location awareness is a critical issue in wireless sensor network applications. For more accurate location estimation, the two issues should be considered extensively: 1) how to sufficiently utilize the connection information between…

Networking and Internet Architecture · Computer Science 2024-03-08 Penghong Wang , Xingtao Wang , Wenrui Li , Xiaopeng Fan , Debin Zhao

Due to the lack of wireless spectrum resources, people are focusing on the versatile wireless networks. Wireless localization and target sensing both rely on precise extraction of parameters such as signal amplitude, propagation delay and…

Information Theory · Computer Science 2023-09-18 Ruihang Zhang , Jiayan Yang , Mu Jia , Tingting Zhang

We address the indoor localization problem, where the goal is to predict user's trajectory from the data collected by their smartphone, using inertial sensors such as accelerometer, gyroscope and magnetometer, as well as other environment…

Machine Learning · Computer Science 2020-11-24 Leonid Antsfeld , Boris Chidlovskii , Emilio Sansano-Sansano

The demand for device-free indoor localization using commercial Wi-Fi devices has rapidly increased in various fields due to its convenience and versatile applications. However, random frequency offset (RFO) in wireless channels poses…

Signal Processing · Electrical Eng. & Systems 2023-04-14 Wen Liu , An-Hung Hsiao , Li-Hsiang Shen , Kai-Ten Feng

Wireless Technology Recognition (WTR) and localization are essential in modern communication systems, enabling efficient spectrum management, seamless coexistence of diverse technologies, and accurate positioning in dynamic environments. In…

Signal Processing · Electrical Eng. & Systems 2025-09-22 Mohammad Cheraghinia , Eli De Poorter , Jaron Fontaine , Merouane Debbah , Adnan Shahid

Localization is an important issue for Wireless Sensor Networks (WSN). A mobile sensor may change its position rapidly and thus require localization calls frequently. A localization may require network wide information and increase traffic…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-11-12 B. Sau , S. Mukhopadhyaya , K. Mukhopadhyaya

Localization of a wireless mobile device or a robot in indoor and GPS-denied environments is a difficult problem, particularly in dynamic scenarios where traditional cameras and LIDAR-based alternative sensing and localization modalities…

Robotics · Computer Science 2022-01-14 Ehsan Latif , Ramviyas Parasuraman

Inferring the location of a mobile device in an indoor setting is an open problem of utmost significance. A leading approach that does not require the deployment of expensive infrastructure is fingerprinting, where a classifier is trained…

Signal Processing · Electrical Eng. & Systems 2022-02-08 Erez Peterfreund , Ioannis G. Kevrekidis , Ariel Jaffe

WiFi fingerprint-based indoor localization has been widely studied, but most existing approaches focus on absolute positioning and rely on dense coordinate annotations, which are costly to obtain at scale. In this paper, we study a…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Tzu-Ti Wei , Po-Cheng Chen , Yu-Chee Tseng , Jen-Jee Chen

Accurate and robust indoor localization is critical for smart building applications, yet existing Wi-Fi-based systems are often vulnerable to environmental conditions. This work presents a novel indoor localization system, called LiGen,…

Robotics · Computer Science 2025-10-31 Jie Lin , Hsun-Yu Lee , Ho-Ming Li , Fang-Jing Wu

We study a heterogeneous wireless sensor network (WSN) where N heterogeneous access points (APs) gather data from densely deployed sensors and transmit their sensed information to M heterogeneous fusion centers (FCs) via multi-hop wireless…

Information Theory · Computer Science 2021-09-09 Saeed Karimi-Bidhendi , Jun Guo , Hamid Jafarkhani

This paper studies the indoor localisation of WiFi devices based on a commodity chipset and standard channel sounding. First, we present a novel shallow neural network (SNN) in which features are extracted from the channel state information…

Machine Learning · Computer Science 2020-10-20 Peizheng Li , Han Cui , Aftab Khan , Usman Raza , Robert Piechocki , Angela Doufexi , Tim Farnham