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Channel state information (CSI) is of vital importance in wireless communication systems. Existing CSI acquisition methods usually rely on pilot transmissions, and geographically separated base stations (BSs) with non-correlated CSI need to…

信息论 · 计算机科学 2018-12-05 Zhiyuan Jiang , Ziyan He , Sheng Chen , Andreas F. Molisch , Sheng Zhou , Zhisheng Niu

Autonomous driving demands accurate perception and safe decision-making. To achieve this, automated vehicles are now equipped with multiple sensors (e.g., camera, Lidar, etc.), enabling them to exploit complementary environmental context by…

计算机视觉与模式识别 · 计算机科学 2022-02-24 Xiaoming Zeng , Zhendong Wang , Yang Hu

We build CSI-Net, a unified Deep Neural Network~(DNN), to learn the representation of WiFi signals. Using CSI-Net, we jointly solved two body characterization problems: biometrics estimation (including body fat, muscle, water, and bone…

机器学习 · 计算机科学 2019-01-23 Fei Wang , Jinsong Han , Shiyuan Zhang , Xu He , Dong Huang

Channel state information (CSI) feedback is critical for frequency division duplex (FDD) massive multi-input multi-output (MIMO) systems. Most conventional algorithms are based on compressive sensing (CS) and are highly dependent on the…

信号处理 · 电气工程与系统科学 2020-04-17 Hongyuan Ye , Feifei Gao , Jing Qian , Hao Wang , Geoffrey Ye Li

Deep learning-based (DL-based) channel state information (CSI) feedback for a Massive multiple-input multiple-output (MIMO) system has proved to be a creative and efficient application. However, the existing systems ignored the wireless…

信号处理 · 电气工程与系统科学 2021-10-13 Haozhen Li , Boyuan Zhang , Xin Liang , Haoran Chang , Xinyu Gu , Lin Zhang

We present a hybrid neural network model for inferring the position of mobile robots using Channel State Information (CSI) data from a Massive MIMO system. By leveraging an existing CSI dataset, our approach integrates a Convolutional…

Ensuring smooth mobility management while employing directional beamformed transmissions in 5G millimeter-wave networks calls for robust and accurate user equipment (UE) localization and tracking. In this article, we develop neural…

信号处理 · 电气工程与系统科学 2024-06-25 Roman Klus , Jukka Talvitie , Julia Vinogradova , Gabor Fodor , Johan Torsner , Mikko Valkama

To fully unlock the benefits of multiple-input multiple-output (MIMO) networks, downlink channel state information (CSI) is required at the base station (BS). In frequency division duplex (FDD) systems, the CSI is acquired through a…

信息论 · 计算机科学 2023-05-23 Matteo Nerini , Valentina Rizzello , Michael Joham , Wolfgang Utschick , Bruno Clerckx

Site-specific channel inference plays a critical role in the design and evaluation of next-generation wireless communication systems by considering the surrounding propagation environment. However, traditional methods are unscalable.…

图像与视频处理 · 电气工程与系统科学 2026-04-14 Junzhe Song , Ruisi He , Mi Yang , Zhengyu Zhang , Shuaiqi Gao , Bo Ai , Zhangdui Zhong

Global navigation satellite systems (GNSS) face significant challenges in urban and sub-urban areas due to non-line-of-sight (NLOS) propagation, multipath effects, and low received power levels, resulting in highly non-linear and…

机器学习 · 计算机科学 2025-04-22 M. Humayun Kabir , Md. Ali Hasan , Md. Shafiqul Islam , Kyeongjun Ko , Wonjae Shin

Accurate estimation of DL CSI is required to achieve high spectrum and energy efficiency in massive MIMO systems. Previous works have developed learning-based CSI feedback framework within FDD systems for efficient CSI encoding and recovery…

信息论 · 计算机科学 2022-01-11 Yu-Chien Lin , Ta-Sung Lee , Zhi Ding

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…

网络与互联网体系结构 · 计算机科学 2021-01-29 Shing-Jiuan Liu , Ronald Y. Chang , Feng-Tsun Chien

Multiple-input multiple-output (MIMO) is an enabling technology to meet the growing demand for faster and more reliable communications in wireless networks with a large number of terminals, but it can also be applied for position estimation…

信号处理 · 电气工程与系统科学 2021-08-06 Gregor Cerar , Aleš Švigelj , Mihael Mohorčič , Carolina Fortuna , Tomaž Javornik

This paper presents a new map-assisted localization approach utilizing Chanel State Information (CSI) in Massive Multiple-Input Multiple-Output (MIMO) systems. Map-assisted localization is an environment-aware approach in which the…

信号处理 · 电气工程与系统科学 2023-04-25 Katarina Vuckovic , Farzam Hejazi , Nazanin Rahnavard

To achieve higher throughput in next-generation Wi-Fi systems, a station (STA) needs to efficiently compress channel state information (CSI) and feed it back to an access point (AP). In this paper, we propose a novel deep learning…

信号处理 · 电气工程与系统科学 2025-07-16 Junyong Shin , Eunsung Jeon , Inhyoung Kim , Yo-Seb Jeon

This paper presents an innovative framework for remote sensing image analysis by fusing deep learning techniques, specifically Convolutional Neural Networks (CNNs) and Long Short-Term Memory (LSTM) networks, with Geographic Information…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Sajjad Afroosheh , Mohammadreza Askari

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

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

Diverse fault types, fast re-closures, and complicated transient states after a fault event make real-time fault location in power grids challenging. Existing localization techniques in this area rely on simplistic assumptions, such as…

系统与控制 · 计算机科学 2019-05-20 Wenting Li , Deepjyoti Deka , Michael Chertkov , Meng Wang

The first step of a secure communication is authenticating legible users and detecting the malicious ones. In the last recent years, some promising schemes proposed using wireless medium network's features, in particular, channel state…

网络与互联网体系结构 · 计算机科学 2018-12-18 Amirhossein Yazdani Abyaneh , Ali Hosein Gharari Foumani , Vahid Pourahmadi