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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…

机器学习 · 计算机科学 2025-11-11 Minh Tu Hoang , Brosnan Yuen , Kai Ren , Xiaodai Dong , Tao Lu , Hung Le Nguyen , Robert Westendorp , Kishore Reddy

Radio based positioning of a user equipment (UE) based on deep learning (DL) methods using channel state information (CSI) fingerprints have shown promising results. DL models are able to capture complex properties embedded in the CSI about…

信号处理 · 电气工程与系统科学 2022-10-27 Anastasios Foliadis , Mario H. Castañeda Garcia , Richard A. Stirling-Gallacher , Reiner S. Thomä

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.…

信号处理 · 电气工程与系统科学 2023-07-03 Jiyu Jiao , Xiaojun Wang , Chenlin He

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…

信息论 · 计算机科学 2018-12-05 Ruichen Deng , Zhiyuan Jiang , Sheng Zhou , Shuguang Cui , Zhisheng Niu

Localization is one of the most important problems in various fields such as robotics and wireless communications. For instance, Unmanned Aerial Vehicles (UAVs) require the information of the position precisely for an adequate control…

信号处理 · 电气工程与系统科学 2021-09-28 Kutay Bölat

Localization of wireless transmitters based on channel state information (CSI) fingerprinting finds widespread use in indoor as well as outdoor scenarios. Fingerprinting localization first builds a database containing CSI with measured…

信号处理 · 电气工程与系统科学 2019-12-03 Larry Tang , Ramina Ghods , Christoph Studer

Radio Frequency Fingerprinting (RFF) using deep learning has gained attention as a complementary approach to cryptographic authentication, offering resistance to spoofing, replay attacks, and key leakage. While most RFF approaches rely on…

信号处理 · 电气工程与系统科学 2026-05-18 Fawaz Abdul Razak , Yasin Yilmaz

In this paper, we consider people counting and localization systems exploiting channel state information (CSI) measured from commodity WiFi network interface cards (NICs). While CSI has useful information of amplitude and phase to describe…

信息论 · 计算机科学 2026-05-01 Jihoon Cha , Hwanjin Kim , Junil Choi

We consider the use of deep neural networks (DNNs) in the context of channel state information (CSI)-based localization for Massive MIMO cellular systems. We discuss the practical impairments that are likely to be present in practical CSI…

网络与互联网体系结构 · 计算机科学 2020-05-26 Paul Ferrand , Alexis Decurninge , Maxime Guillaud

In this paper, we challenge the common assumption that collapsing the spatial dimensions of a 3D (spatial-channel) tensor in a convolutional neural network (CNN) into a vector via global pooling removes all spatial information.…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Md Amirul Islam , Matthew Kowal , Sen Jia , Konstantinos G. Derpanis , Neil D. B. Bruce

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,…

信号处理 · 电气工程与系统科学 2020-05-13 Luan Chen , Iness Ahriz , Didier Le Ruyet

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…

信号处理 · 电气工程与系统科学 2019-07-02 Heng Zhang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao

This work introduces DeepCRF, a deep learning framework designed for channel state information-based radio frequency fingerprinting (CSI-RFF). The considered CSI-RFF is built on micro-CSI, a recently discovered radio-frequency (RF)…

信号处理 · 电气工程与系统科学 2024-03-26 Ruiqi Kong , He Chen

In this study, we leveraged Channel State Information (CSI), commonly utilized in WLAN communication, as training data to develop and evaluate five distinct machine learning models for recognizing human postures: standing, sitting, and…

信号处理 · 电气工程与系统科学 2024-09-13 Tomoya Tanaka , Ayumu Yabuki , Mizuki Funakoshi , Ryo Yonemoto

Reaping the benefits of multi-antenna communication systems in frequency division duplex (FDD) requires channel state information (CSI) reporting from mobile users to the base station (BS). Over the last decades, the amount of CSI to be…

信息论 · 计算机科学 2025-01-06 Baptiste Chatelier , Vincent Corlay , Matthieu Crussière , Luc Le Magoarou

Channel state information (CSI) is crucial for massive multi-input multi-output (MIMO) system. As the antenna scale increases, acquiring CSI results in significantly higher system overhead. In this letter, we propose a novel channel…

信号处理 · 电气工程与系统科学 2024-08-14 Lianzheng Shi , Jianhua Zhang , Li Yu , Yuxiang Zhang , Zhen Zhang , Yichen Cai , Guangyi Liu

Deep neural networks (DNNs) have become a popular approach for wireless localization based on channel state information (CSI). A common practice is to use the raw CSI in the input and allow the network to learn relevant channel…

信号处理 · 电气工程与系统科学 2022-12-07 Artan Salihu , Stefan Schwarz , Markus Rupp

This paper investigates the downlink channel state information (CSI) sensing in 5G heterogeneous networks composed of user equipments (UEs) with different feedback capabilities. We aim to enhance the CSI accuracy of UEs only affording the…

信息论 · 计算机科学 2024-10-28 Lei Li , Xing Zeng , Ya-Feng Liu , Yanqing Xu , Tsung-Hui Chang

This work investigates the potential of seam carving as a feature pooling technique within Convolutional Neural Networks (CNNs) for image classification tasks. We propose replacing the traditional max pooling layer with a seam carving…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Mohammad Imrul Jubair

Fingerprint-based localization improves the positioning performance in challenging, non-line-of-sight (NLoS) dominated indoor environments. However, fingerprinting models require an expensive life-cycle management including recording and…

信号处理 · 电气工程与系统科学 2024-10-28 Maximilian Stahlke , George Yammine , Tobias Feigl , Bjoern M. Eskofier , Christopher Mutschler