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Although WiFi fingerprint-based indoor localization is attractive, its accuracy remains a primary challenge especially in mobile environments. Existing approaches either appeal to physical layer information or rely on extra wireless signals…

Networking and Internet Architecture · Computer Science 2013-09-02 Chenshu Wu , Zheng Yang , Zimu Zhou , Yunhao Liu , Mingyan Liu

Device-free localization plays an important role in many ubiquitous applications. Among the different technologies proposed, Wi-Fi based technology using commercial devices has attracted much attention due to its low cost, ease of…

Networking and Internet Architecture · Computer Science 2017-07-25 Hao Wang , Daqing Zhang , Kai Niu , Qin Lv , Yuanhuai Liu , Dan Wu , Ruiyang Gao , Bing Xie

Wi-Fi devices, akin to passive radars, can discern human activities within indoor settings due to the human body's interaction with electromagnetic signals. Current Wi-Fi sensing applications predominantly employ data-driven learning…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Marco Cominelli , Francesco Gringoli , Lance M. Kaplan , Mani B. Srivastava , Trevor Bihl , Erik P. Blasch , Nandini Iyer , Federico Cerutti

We introduce ViFiCon, a self-supervised contrastive scheme which learns a cross-modal association between vision and wireless modalities. Specifically, the system uses pedestrian data collected from RGB-D camera footage and WiFi Fine Time…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Nicholas Meegan , Hansi Liu , Bryan Bo Cao , Abrar Alali , Kristin Dana , Marco Gruteser , Shubham Jain , Ashwin Ashok

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

Wi-Fi sensing has emerged as a powerful non-intrusive technology for recognizing human activities, monitoring vital signs, and enabling context-aware applications using commercial wireless devices. However, the performance of Wi-Fi sensing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Fei Wang , Tingting Zhang , Wei Xi , Han Ding , Ge Wang , Di Zhang , Yuanhao Cui , Fan Liu , Jinsong Han , Jie Xu , Tony Xiao Han

The Global Navigation Satellite Systems (GNSS) like GPS suffer from accuracy degradation and are almost unavailable in indoor environments. Indoor positioning systems (IPS) based on WiFi signals have been gaining popularity. However, owing…

Signal Processing · Electrical Eng. & Systems 2021-10-22 Pranav Sankhe , Saqib Azim , Sachin Goyal , Tanya Choudhary , Kumar Appaiah , Sukumar Srikant

The fairness of IEEE 802.11 wireless networks (including Wireless LAN and Ad-hoc networks) is hard to predict and control because of the randomness and complexity of the MAC contentions and dynamics. Moreover, asymmetric channel conditions…

Networking and Internet Architecture · Computer Science 2007-12-14 Libin Jiang , Jean Walrand

Ensuring reliable and predictable communications is one of the main goals in modern industrial systems that rely on Wi-Fi networks, especially in scenarios where continuity of operation and low latency are required. In these contexts, the…

Networking and Internet Architecture · Computer Science 2025-12-02 Gabriele Formis , Amanda Ericson , Stefan Forsstrom , Kyi Thar , Gianluca Cena , Stefano Scanzio

The availability of positional information is of great importance in many commercial, public safety, and military applications. The coming years will see the emergence of location-aware networks with sub-meter accuracy, relying on accurate…

Information Theory · Computer Science 2010-06-07 Yuan Shen , Moe Z. Win

Among the most eagerly anticipated opportunities made possible by Advanced LIGO/Virgo are multimessenger observations of compact mergers. Optical counterparts may be short-lived so rapid characterization of gravitational wave (GW) events is…

High Energy Astrophysical Phenomena · Physics 2016-03-23 Tyson B. Littenberg , Ben Farr , Scott Coughlin , Vicky Kalogera

In this paper, we first present a single-input, multiple-output convolutional neural network that can estimate both heart rate and respiration rate simultaneously by exploiting the underlying link between heart rate and respiration rate.…

Signal Processing · Electrical Eng. & Systems 2022-03-24 Moyu Liu , Zihuai Lin , Pei Xiao , Wei Xiang

mmWave radars have recently gathered significant attention as a means to track human movement within indoor environments. Widely adopted Kalman filter tracking methods experience performance degradation when the underlying movement is…

Signal Processing · Electrical Eng. & Systems 2022-05-09 Jacopo Pegoraro , Michele Rossi

Location based services, already popular with end users, are now inevitably becoming part of new wireless infrastructures and emerging business processes. The increasingly popular Deep Learning (DL) artificial intelligence methods perform…

Machine Learning · Computer Science 2022-01-25 Anže Pirnat , Blaž Bertalanič , Gregor Cerar , Mihael Mohorčič , Marko Meža , Carolina Fortuna

Beyond data communications, commercial-off-the-shelf Wi-Fi devices can be used to monitor human activities, track device locomotion, and sense the ambient environment. In particular, spatial beam attributes that are inherently available in…

Machine Learning · Computer Science 2022-05-19 Toshiaki Koike-Akino , Pu Wang , Ye Wang

Studies of object detection and localization, particularly pedestrian detection have received considerable attention in recent times due to its several prospective applications such as surveillance, driving assistance, autonomous cars, etc.…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Sudip Das , Partha Sarathi Mukherjee , Ujjwal Bhattacharya

Wireless sensing is a promising technology for future wireless communication networks to realize various application services. Wireless local area network (WLAN)-based localization approaches using channel state information (CSI) have been…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Osamu Muta , Kazuki Noguchi , Junsuke Izumi , Shunsuke Shimizu , Tomoki Murakami , Shinya Otsuki

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

Simultaneous localization and mapping (SLAM) has been extensively 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…

Networking and Internet Architecture · Computer Science 2020-01-10 Ran Liu , Sumudu Hasala Marakkalage , Madhushanka Padmal , Thiruketheeswaran Shaganan , Chau Yuen , Yong Liang Guan , U-Xuan Tan

Wireless Sensor Network holds a pivotal position and gained a lot of attention from researchers in recent years. Sensor nodes have been used in vast applications such as environment monitoring, security purpose applications, and target…

Networking and Internet Architecture · Computer Science 2021-07-12 Muneeb A. Khan , Muazzam A. Khan , Maha Driss , Wadii Boulila , Jawad Ahmad
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