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Related papers: Centimeter-Level Indoor Localization using Channel…

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In the expanding field of the Internet of Things (IoT), wireless channel estimation is a significant challenge. This is specifically true for low-power IoT (LP-IoT) communication, where efficiency and accuracy are extremely important. This…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Samrah Arif , M. Arif Khan , Sabih Ur Rehman

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

Internet of things wireless networking with long range, low power and low throughput is raising as a new paradigm enabling to connect trillions of devices efficiently. In such networks with low power and bandwidth devices, localization…

Information Theory · Computer Science 2017-10-17 Hazem Sallouha , Alessandro Chiumento , Sofie Pollin

The anatomical location of imaging features is of crucial importance for accurate diagnosis in many medical tasks. Convolutional neural networks (CNN) have had huge successes in computer vision, but they lack the natural ability to…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Mohsen Ghafoorian , Nico Karssemeijer , Tom Heskes , Inge van Uden , Clara Sanchez , Geert Litjens , Frank-Erik de Leeuw , Bram van Ginneken , Elena Marchiori , Bram Platel

Accurate and high precision of the indoor positioning is as important as ensuring reliable navigation in outdoor environments. Using the state-of-the-art deep learning models provides better reliability and accuracy to navigate and monitor…

Signal Processing · Electrical Eng. & Systems 2025-08-19 Muhammad Ammad , Paul Schwarzbach , Michael Schultz , Oliver Michler

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

The accuracy of channel state information (CSI) acquisition directly affects the performance of millimeter wave (mmWave) communications. In this article, we provide an overview on CSI acquisition, including beam training and channel…

Signal Processing · Electrical Eng. & Systems 2022-03-15 Chenhao Qi , Peihao Dong , Wenyan Ma , Hua Zhang , Zaichen Zhang , Geoffrey Ye Li

Wi-Fi channel state information (CSI) has emerged as a plausible modality for sensing different human activities as a function of modulations in the wireless signal that travels between wireless devices. Until now, most research has taken a…

Information Theory · Computer Science 2019-02-05 Mohammed Alloulah , Anton Isopoussu , Chulhong Min , Fahim Kawsar

Accurate and timely water level monitoring is critical for flood prevention, environmental management, and emerging smart infrastructure systems. Traditional water sensing methods often rely on dedicated sensors, which can be costly to…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Khawaja Fahad Masood , Kai Wu , Zhongqin Wang , J. Andrew Zhang , Shu-Lin Chen , Y. Jay Guo

We propose a software-defined testbed for Wi-Fi channel-state information (CSI) acquisition. This testbed features distributed software-defined radios (SDRs) and a custom IEEE 802.11a software stack that enables the passive collection of…

Signal Processing · Electrical Eng. & Systems 2024-12-11 Frederik Zumegen , Christoph Studer

Timely and accurate knowledge of channel state information (CSI) is necessary to support scheduling operations at both physical and network layers. In order to support pilot-free channel estimation in cell sleeping scenarios, we propose to…

Information Theory · Computer Science 2018-12-05 Ruichen Deng , Zhiyuan Jiang , Sheng Zhou , Shuguang Cui , Zhisheng Niu

Providing high-capacity radio connectivity for high-speed trains (HSTs) is one of the most important use cases of emerging 5G New Radio (NR) networks. In this article, we show that 5G NR technology can also facilitate high-accuracy…

Networking and Internet Architecture · Computer Science 2019-05-07 Jukka Talvitie , Toni Levanen , Mike Koivisto , Tero Ihalainen , Kari Pajukoski , Mikko Valkama

Cochlear implants (CIs) are neural prosthetics which are used to treat patients with hearing loss. CIs use an array of electrodes which are surgically inserted into the cochlea to stimulate the auditory nerve endings. After surgery, CIs…

Computer Vision and Pattern Recognition · Computer Science 2018-06-14 Dongqing Zhang , Jianing Wang , Jack H. Noble , Benoit M. Dawant

The widespread mobile devices facilitated the emergence of many new applications and services. Among them are location-based services (LBS) that provide services based on user's location. Several techniques have been presented to enable LBS…

Signal Processing · Electrical Eng. & Systems 2018-11-30 Peyman Yazdanian , Vahid Pourahmadi

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

In this work we propose a new CNN+LSTM architecture for camera pose regression for indoor and outdoor scenes. CNNs allow us to learn suitable feature representations for localization that are robust against motion blur and illumination…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Florian Walch , Caner Hazirbas , Laura Leal-Taixé , Torsten Sattler , Sebastian Hilsenbeck , Daniel Cremers

Massive MIMO systems rely on accurate Channel State Information (CSI) feedback to enable high-gain beam-forming. However, the feedback overhead scales linearly with the number of antennas, presenting a major bottleneck. While recent deep…

Systems and Control · Electrical Eng. & Systems 2025-12-17 Maryam Ansarifard , Mostafa Rahmani , Mohit K. Sharma , Kishor C. Joshi , George Exarchakos , Alister Burr

Channel State Information (CSI) is widely adopted as a feature for indoor localization. Taking advantage of the abundant information from the CSI, people can be accurately sensed even without equipped devices. However, the positioning error…

Signal Processing · Electrical Eng. & Systems 2023-11-13 Wei-Yu Chung , Li-Hsiang Shen , Kai-Ten Feng , Yuan-Chun Lin , Shih-Cheng Lin , Sheng-Fuh Chang

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

For decades, the determination of an objects location has been implemented utilizing different technologies. Despite GPS (Global Positioning System) provides a scalable efficient and cost effective location services however the satellite…

Cryptography and Security · Computer Science 2022-10-04 Ali Abdullah S. AlQahtani , Nazim Choudhury