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Channel state information (CSI)-based fingerprinting via neural networks (NNs) is a promising approach to enable accurate indoor and outdoor positioning of user equipments (UEs), even under challenging propagation conditions. In this paper,…

信号处理 · 电气工程与系统科学 2021-09-01 Emre Gönültaş , Eric Lei , Jack Langerman , Howard Huang , Christoph Studer

This paper presents a novel compressed sensing (CS) approach to high dimensional wireless channel estimation by optimizing the input to a deep generative network. Channel estimation using generative networks relies on the assumption that…

信号处理 · 电气工程与系统科学 2020-06-25 Eren Balevi , Akash Doshi , Ajil Jalal , Alexandros Dimakis , Jeffrey G. Andrews

In this paper, a machine learning method for predicting the evolution of a mobile communication channel based on a specific type of convolutional neural network is developed and evaluated in a simulated multipath transmission scenario. The…

信号处理 · 电气工程与系统科学 2020-03-03 Julian Ahrens , Lia Ahrens , Hans D. Schotten

Achieving ubiquitous high-accuracy localization is crucial for next-generation wireless systems, yet remains challenging in multipath-rich urban environments. By exploiting the fine-grained multipath characteristics embedded in channel…

信号处理 · 电气工程与系统科学 2026-02-03 Tong An , Huan Lu , Jiayang Shi , Kai Yu , Rongrong Zhu , Bin Zheng , Jiwei Zhao , Haibo Zhou

Accurate channel state information (CSI) acquisition for massive multiple-input multiple-output (MIMO) systems is essential for future mobile communication networks. Channel fingerprint (CF), also referred to as channel knowledge map, is a…

网络与互联网体系结构 · 计算机科学 2026-01-12 Zhenzhou Jin , Li You , Xudong Li , Zhen Gao , Yuanwei Liu , Xiang-Gen Xia , Xiqi Gao

In high-mobility 6G scenarios, rapidly time-varying channels lead to very short coherence times, which makes conventional pilot-based channel state information (CSI) estimation approaches prone to outdated information or excessive pilot…

信号处理 · 电气工程与系统科学 2026-04-07 Mohsen Kazemian , Jürgen Jasperneite

Accurate and efficient acquisition of wireless channel state information (CSI) is crucial to enhance the communication performance of wireless systems. However, with the continuous densification of wireless links, increased channel…

信号处理 · 电气工程与系统科学 2025-07-09 Yuelong Qiu , Di Wu , Yong Zeng , Yanqun Tang , Nan Cheng , Chenhao Qi

In the realm of reconfigurable intelligent surface (RIS)-assisted wireless communications, efficient channel state information (CSI) feedback is paramount. This paper introduces RIS-CoCsiNet, a novel deep learning-based framework designed…

信息论 · 计算机科学 2024-10-30 Jiajia Guo , Xi Yang , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Generative Adversarial Networks (GANs) are Machine Learning (ML) algorithms that have the ability to address competitive resource allocation problems together with detection and mitigation of anomalous behavior. In this paper, we…

机器学习 · 计算机科学 2025-05-15 Ender Ayanoglu , Kemal Davaslioglu , Yalin E. Sagduyu

We present a neural network architecture for jointly learning user locations and environment mapping up to isometry, in an unsupervised way, from channel state information (CSI) values with no location information. The model is based on an…

Sixth-generation (6G) mobile communication networks are expected to have dense infrastructures, large antenna size, wide bandwidth, cost-effective hardware, diversified positioning methods, and enhanced intelligence. Such trends bring both…

信息论 · 计算机科学 2024-02-07 Yong Zeng , Junting Chen , Jie Xu , Di Wu , Xiaoli Xu , Shi Jin , Xiqi Gao , David Gesbert , Shuguang Cui , Rui Zhang

As 5G technology becomes increasingly established, the anticipation for 6G is growing, which promises to deliver faster and more reliable wireless connections via cutting-edge radio technologies. However, efficient management method of the…

信息论 · 计算机科学 2024-01-17 Lihao Zhang , Haijian Sun , Yong Zeng , Rose Qingyang Hu

Channel knowledge map (CKM) is a promising technique to achieve environment-aware wireless communication and sensing. Constructing the complete CKM based on channel knowledge observations at sparse locations is a fundamental problem for…

图像与视频处理 · 电气工程与系统科学 2026-04-27 Z. Chen , S. Fu , Y. Zeng , X. Xu , Z. Wei

To fully exploit the advantages of massive multiple-input multiple-output (m-MIMO), accurate channel state information (CSI) is required at the transmitter. However, excessive CSI feedback for large antenna arrays is inefficient and thus…

信息论 · 计算机科学 2021-05-24 Yuyao Sun , Wei Xu , Le Liang , Ning Wang , Geoffery Ye Li , Xiaohu You

Magnetic resonance image (MRI) reconstruction is a severely ill-posed linear inverse task demanding time and resource intensive computations that can substantially trade off {\it accuracy} for {\it speed} in real-time imaging. In addition,…

计算机视觉与模式识别 · 计算机科学 2017-06-02 Morteza Mardani , Enhao Gong , Joseph Y. Cheng , Shreyas Vasanawala , Greg Zaharchuk , Marcus Alley , Neil Thakur , Song Han , William Dally , John M. Pauly , Lei Xing

A critical bottleneck of massive multiple-input multiple-output (MIMO) system is the huge training overhead caused by downlink transmission, like channel estimation, downlink beamforming and covariance observation. In this paper, we propose…

信号处理 · 电气工程与系统科学 2021-01-19 Bo Lin , Feifei Gao , Shun Zhang , Ting Zhou , Ahmed Alkhateeb

In massive multiple-input multiple-output (MIMO) systems, how to reliably acquire downlink channel state information (CSI) with low overhead is challenging. In this work, by integrating the generative pre-trained Transformer (GPT) with…

信息论 · 计算机科学 2024-11-11 Ye Zeng , Li Qiao , Zhen Gao , Tong Qin , Zhonghuai Wu , Emad Khalaf , Sheng Chen , Mohsen Guizani

In order to unlock the full advantages of massive multiple input multiple output (MIMO) in the downlink, channel state information (CSI) is required at the base station (BS) to optimize the beamforming matrices. In frequency division duplex…

信息论 · 计算机科学 2021-07-09 Yusha Liu , Osvaldo Simeone

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

Wi-Fi technology has evolved from simple communication routers to sensing devices. Wi-Fi sensing leverages conventional Wi-Fi transmissions to extract and analyze channel state information (CSI) for applications like proximity detection,…

信号处理 · 电气工程与系统科学 2025-07-08 Ahmed Y. Radwan , Mustafa Yildirim , Navid Hasanzadeh , Hina Tabassum , Shahrokh Valaee