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Related papers: Indoor Sensing with Measurements

200 papers

This paper proposes a new image-based localization framework that explicitly localizes the camera/robot by fusing Convolutional Neural Network (CNN) and sequential images' geometric constraints. The camera is localized using a single or few…

Computer Vision and Pattern Recognition · Computer Science 2022-01-06 Jingwei Song , Mitesh Patel , Maani Ghaffari

Movable antenna (MA) has attracted increasing attention in wireless communications due to its capability of wireless channel reconfiguration through local antenna movement within a confined region at the transmitter/receiver. However, to…

Signal Processing · Electrical Eng. & Systems 2025-05-28 Yitai Huang , Weidong Mei , Xin Wei , Zhi Chen , Boyu Ning

In this paper, we introduce two indoor Wireless Local Area Network (WLAN) positioning methods using augmented sparse recovery algorithms. These schemes render a sparse user's position vector, and in parallel, minimize the distance between…

Networking and Internet Architecture · Computer Science 2016-10-20 Ali Khalajmehrabadi , Nikolaos Gatsis , Daniel Pack , David Akopian

RF sensor networks are wireless networks that can localize and track people (or targets) without needing them to carry or wear any electronic device. They use the change in the received signal strength (RSS) of the links due to the…

Networking and Internet Architecture · Computer Science 2013-02-20 Maurizio Bocca , Ossi Kaltiokallio , Neal Patwari , Suresh Venkatasubramanian

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

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

Efficient spectrum use in wireless sensor networks through spatial reuse requires effective models of packet reception at the physical layer in the presence of interference. Despite recent progress in analytic and simulations research into…

Networking and Internet Architecture · Computer Science 2014-05-19 Helga Gudmundsdottir , Eyjólfur I Ásgeirsson , Marijke H. L. Bodlaender , Joseph T. Foley , Magnús M. Halldórsson , Ymir Vigfusson

Modern smart phones are becoming helpful in the areas of Internet-Of-Things (IoT) and ambient health intelligence. By learning data from several mobile sensors, we detect nearness of the human body to a mobile device in a three-dimensional…

Computers and Society · Computer Science 2016-11-18 Sylvester Olubolu Orimaye , Foo Chuan Leong , Chen Hui Lee , Eddy Cheng Han Ng

Classification between different activities in an indoor environment using wireless signals is an emerging technology for various applications, including intrusion detection, patient care, and smart home. Researchers have shown different…

Information Theory · Computer Science 2021-02-10 B. R. Manoj , Guoda Tian , Sara Gunnarsson , Fredrik Tufvesson , Erik G. Larsson

With expeditious development of wireless communications, location fingerprinting (LF) has nurtured considerable indoor location based services (ILBSs) in the field of Internet of Things (IoT). For most pattern-matching based LF solutions,…

Signal Processing · Electrical Eng. & Systems 2020-05-13 Luan Chen , Iness Ahriz , Didier Le Ruyet

Perceiving humans in the context of Intelligent Transportation Systems (ITS) often relies on multiple cameras or expensive LiDAR sensors. In this work, we present a new cost-effective vision-based method that perceives humans' locations in…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Lorenzo Bertoni , Sven Kreiss , Alexandre Alahi

We introduce WiCluster, a new machine learning (ML) approach for passive indoor positioning using radio frequency (RF) channel state information (CSI). WiCluster can predict both a zone-level position and a precise 2D or 3D position,…

Networking and Internet Architecture · Computer Science 2021-09-28 Ilia Karmanov , Farhad G. Zanjani , Simone Merlin , Ishaque Kadampot , Daniel Dijkman

We propose channel charting (CC), a novel framework in which a multi-antenna network element learns a chart of the radio geometry in its surrounding area. The channel chart captures the local spatial geometry of the area so that points that…

Information Theory · Computer Science 2018-08-23 Christoph Studer , Saïd Medjkouh , Emre Gönültaş , Tom Goldstein , Olav Tirkkonen

Uplink sensing in perceptive mobile networks (PMNs), which uses uplink communication signals for sensing the environment around a base station, faces challenging issues of clock asynchronism and the requirement of a line-of-sight (LOS) path…

Information Theory · Computer Science 2022-11-08 Zhitong Ni , J. Andrew Zhang , Kai Wu , Ren Ping Liu

A recently conducted indoor-to-outdoor measurement campaign for investigating the propagation characteristics of an $8 \times 8$ virtual multiple-input-multiple-output (MIMO) based wireless sensor network (WSN) is presented in this paper.…

Signal Processing · Electrical Eng. & Systems 2020-07-03 I. Dey , M. Majid Butt , N. Marchetti

Indoor localization becomes a raising demand in our daily lives. Due to the massive deployment in the indoor environment nowadays, WiFi systems have been applied to high accurate localization recently. Although the traditional model based…

Signal Processing · Electrical Eng. & Systems 2019-02-19 Chenlu Xiang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao , Vincent LAU

This paper presents a method for continuous indoor-outdoor environment detection on mobile devices based solely on WiFi fingerprints. Detection of indoor outdoor switching is an important part of identifying a user's context, and it…

Signal Processing · Electrical Eng. & Systems 2019-08-05 Guy Shtar , Bracha Shapira , Lior Rokach

Increasing sources of sensor measurements and prior knowledge have become available for indoor localization on smartphones. How to effectively utilize these sources for enhancing localization accuracy is an important yet challenging…

Networking and Internet Architecture · Computer Science 2015-03-27 Kaiqing Zhang , Hong Hu , Wenhan Dai , Yuan Shen , Moe Z. Win

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

Cellular automata (CA) models are widely used to simulate complex systems with emergent behaviors, but identifying hidden parameters that govern their dynamics remains a significant challenge. This study explores the use of Convolutional…

Machine Learning · Computer Science 2025-03-05 Valery Ashu , Zhisong Liu , Heikki Haario , Andreas Rupp