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相关论文: CSI-Based Data-driven Localization Frameworking us…

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We exploit a general cluster-based network architecture for a fronthaul-limited user-centric cell-free massive multiple-input multiple-output (CF-mMIMO) system under different degrees of cooperation among the access points (APs) to achieve…

信息论 · 计算机科学 2025-10-21 Zahra Mobini , Ahmet Hasim Gokceoglu , Li Wang , Gunnar Peters , Hyundong Shin , Hien Quoc Ngo

Deep learning has been widely adopted for channel state information (CSI)-fingerprinting indoor localization systems. These systems usually consist of two main parts, i.e., a positioning network that learns the mapping from high-dimensional…

信号处理 · 电气工程与系统科学 2023-10-11 Bowen Zhang , Houssem Sifaou , Geoffrey Ye Li

With the development of the sixth-generation (6G) communication system, Channel State Information (CSI) plays a crucial role in improving network performance. Traditional Channel Charting (CC) methods map high-dimensional CSI data to…

信号处理 · 电气工程与系统科学 2026-02-03 Yuan Gao , Wenjing Xie , Yiming Liu , Bintao Hu , Jianbo Du , Shugong Xu

Because of the advantages of computation complexity compared with traditional localization algorithms, fingerprint based localization is getting increasing demand. Expanding the fingerprint database from the frequency domain by channel…

网络与互联网体系结构 · 计算机科学 2024-05-08 Yuan Ruihao , Huang Kaixuan , Zhang Shunqing

In this work, we propose a fast adaptive federated meta-learning (FAM) framework for collaboratively learning a single global model, which can then be personalized locally on individual clients. Federated learning enables multiple clients…

机器学习 · 计算机科学 2023-09-04 Indrajeet Kumar Sinha , Shekhar Verma , Krishna Pratap Singh

Visual place recognition (VPR) in condition-varying environments is still an open problem. Popular solutions are CNN-based image descriptors, which have been shown to outperform traditional image descriptors based on hand-crafted visual…

计算机视觉与模式识别 · 计算机科学 2022-04-18 Hanjing Ye , Weinan Chen , Jingwen Yu , Li He , Yisheng Guan , Hong Zhang

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

The world is moving towards faster data transformation with more efficient localization of a user being the preliminary requirement. This work investigates the use of a deep learning technique for wireless localization, considering both…

信号处理 · 电气工程与系统科学 2020-03-02 Udita Bhattacherjee , Chethan Kumar Anjinappa , LoyCurtis Smith , Ender Ozturk , Ismail Guvenc

Massive MIMO wireless FDD systems are often confronted by the challenge to efficiently obtain downlink channel state information (CSI). Previous works have demonstrated the potential in CSI encoding and recovery by take advantage of…

信息论 · 计算机科学 2021-12-20 Yu-Chien Lin , Zhenyu Liu , Ta-Sung Lee , Zhi Ding

Low-latency localization is critical in cellular networks to support real-time applications requiring precise positioning. In this paper, we propose a distributed machine learning (ML) framework for fingerprint-based localization tailored…

信号处理 · 电气工程与系统科学 2025-07-22 Manish Kumar , Tzu-Hsuan Chou , Byunghyun Lee , Nicolò Michelusi , David J. Love , Yaguang Zhang , James V. Krogmeier

This paper presents a novel channel estimation technique for the multi-user massive multiple-input multiple-output (MU-mMIMO) systems using angular-based hybrid precoding (AB-HP). The proposed channel estimation technique generates…

信息论 · 计算机科学 2022-02-01 Xiaoyi Zhu , Asil Koc , Robert Morawski , Tho Le-Ngoc

Visual place recognition (VPR) enables autonomous systems to localize themselves within an environment using image information. While Convolution Neural Networks (CNNs) currently dominate state-of-the-art VPR performance, their high…

计算机视觉与模式识别 · 计算机科学 2023-05-10 Bruno Arcanjo , Bruno Ferrarini , Michael Milford , Klaus D. McDonald-Maier , Shoaib Ehsan

Distributed training of GNNs enables learning on massive graphs (e.g., social and e-commerce networks) that exceed the storage and computational capacity of a single machine. To reach performance comparable to centralized training,…

机器学习 · 计算机科学 2023-05-18 Jiong Zhu , Aishwarya Reganti , Edward Huang , Charles Dickens , Nikhil Rao , Karthik Subbian , Danai Koutra

Channel charting (CC) has been proposed recently to enable logical positioning of user equipments (UEs) in the neighborhood of a multi-antenna base-station solely from channel-state information (CSI). CC relies on dimensionality reduction…

信号处理 · 电气工程与系统科学 2019-08-09 Pengzhi Huang , Oscar Castañeda , Emre Gönültaş , Saïd Medjkouh , Olav Tirkkonen , Tom Goldstein , Christoph Studer

The human brain is a complex, dynamic network, which is commonly studied using functional magnetic resonance imaging (fMRI) and modeled as network of Regions of interest (ROIs) for understanding various brain functions. Recent studies…

定量方法 · 定量生物学 2024-06-26 Yifan Yang , Yutong Mao , Xufu Liu , Xiao Liu

In many medical image analysis applications, often only a limited amount of training data is available, which makes training of convolutional neural networks (CNNs) challenging. In this work on anatomical landmark localization, we propose a…

图像与视频处理 · 电气工程与系统科学 2019-08-05 Christian Payer , Darko Štern , Horst Bischof , Martin Urschler

Compressive sensing (CS) is a promising technology for realizing energy-efficient wireless sensors for long-term health monitoring. However, conventional model-driven CS frameworks suffer from limited compression ratio and reconstruction…

机器学习 · 计算机科学 2016-12-19 Kai Xu , Yixing Li , Fengbo Ren

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

Gaussian processes (GPs) have gained popularity as flexible machine learning models for regression and function approximation with an in-built method for uncertainty quantification. However, GPs suffer when the amount of training data is…

机器学习 · 统计学 2025-11-26 Jonas Latz , Aretha L. Teckentrup , Simon Urbainczyk

The integration of clinical data offers significant potential for the development of personalized medicine. However, its use is severely restricted by the General Data Protection Regulation (GDPR), especially for small cohorts with rare…

分布式、并行与集群计算 · 计算机科学 2025-10-30 Simon Süwer , Mai Khanh Mai , Christoph Klein , Nicola Götzenberger , Denis Dalić , Andreas Maier , Jan Baumbach