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Accurate indoor localization remains challenging due to variations in wireless signal environments and limited data availability. This paper introduces MetaGraphLoc, a novel system leveraging sensor fusion, graph neural networks (GNNs), and…

信号处理 · 电气工程与系统科学 2024-11-28 Yaya Etiabi , Eslam Eldeeb , Mohammad Shehab , Wafa Njima , Hirley Alves , Mohamed-Slim Alouini , El Mehdi Amhoud

In this paper, we consider the user positioning problem in the massive multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system with a uniform planner antenna (UPA) array. Taking advantage of the UPA…

信号处理 · 电气工程与系统科学 2019-11-15 Chi Wu , Xinping Yi , Wenjin Wang , Li You , Qing Huang , Xiqi Gao

In this paper, we develop and present a novel strategy for safe coordination of a large-scale multi-agent team with ``\textit{local deformation}" capabilities. Multi-agent coordination is defined by our proposed method as a multi-layer…

多智能体系统 · 计算机科学 2023-04-19 Harshvardhan Uppaluru , Hossein Rastgoftar

In this paper, we study efficient \emph{mixed near-field and far-field} target localization methods in extremely large-scale multiple-input multiple-output (XL-MIMO) systems Compared with existing works, we address two new challenges in…

信号处理 · 电气工程与系统科学 2026-02-12 Cong Zhou , Changsheng You , Chao Zhou , Hongqiang Cheng , Shuo Shi

Localization using time-difference of arrival (TDOA) has myriad applications, e.g., in passive surveillance systems and marine mammal research. In this paper, we present a Bayesian estimation method that can localize an unknown number of…

信号处理 · 电气工程与系统科学 2024-09-02 Wenyu Zhang , Mohammad Javad Khojasteh , Florian Meyer

Unmanned aerial vehicles (UAVs) have been recently utilized in multi-access edge computing (MEC) as edge servers. It is desirable to design UAVs' trajectories and user to UAV assignments to ensure satisfactory service to the users and…

多智能体系统 · 计算机科学 2025-08-12 Hamidreza Asadian-Rad , Hossein Soleimani , Shahrokh Farahmand

A distributed integrated sensing and communication (D-ISAC) system offers significant cooperative gains for both sensing and communication performance. These gains, however, can only be fully realized when the distributed nodes are…

信号处理 · 电气工程与系统科学 2025-03-13 Kawon Han , Kaitao Meng , Christos Masouros

Infrared and visible image fusion aims to generate synthetic images simultaneously containing salient features and rich texture details, which can be used to boost downstream tasks. However, existing fusion methods are suffering from the…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Hui Li , Yongbiao Xiao , Chunyang Cheng , Zhongwei Shen , Xiaoning Song

Optical flow is a useful input for various applications, including 3D reconstruction, pose estimation, tracking, and structure-from-motion. Despite its utility, the field of dense long-term tracking, especially over wide baselines, has not…

计算机视觉与模式识别 · 计算机科学 2024-02-22 Tomáš Jelínek , Jonáš Šerých , Jiří Matas

This paper proposes an anti-interference affine frequency division multiplexing (AFDM) system to ensure reliability and resource efficiency under malicious high-power interference originating from adversarial devices in high-mobility…

信息论 · 计算机科学 2025-12-18 Peng Yuan , Zulin Wang , Tao Luo , Yuanhan Ni

Identification of time-varying linear systems, which introduce both time-shifts (delays) and frequency-shifts (Doppler-shifts), is a central task in many engineering applications. This paper studies the problem of identification of…

信息论 · 计算机科学 2018-03-06 Waheed U. Bajwa , Kfir Gedalyahu , Yonina C. Eldar

Deep learning (DL) methods have been shown to improve the performance of several use cases for the fifth-generation (5G) New radio (NR) air interface. In this paper we investigate user equipment (UE) positioning using the channel state…

信号处理 · 电气工程与系统科学 2024-08-29 Anastasios Foliadis , Mario H. Castañeda , Richard A. Stirling-Gallacher , Reiner S. Thomä

Artificial intelligence and distributed algorithms have been widely used in mechanical fault diagnosis with the explosive growth of diagnostic data. A novel intelligent fault diagnosis system framework that allows intelligent terminals to…

信息论 · 计算机科学 2023-02-16 Liang Yu , Qixin Guo , Rui Wang , Minyan Shi , Fucheng Yan , Ran Wang

We study the distributed optimization of transmit strategies in a multiple-input, single-output (MISO) interference channel (IFC). Existing distributed algorithms rely on stricly synchronized update steps by the individual users. They…

信息论 · 计算机科学 2015-06-19 Stefan Wesemann , Gerhard Fettweis

This paper presents a distributed resource allocation algorithm to jointly optimize the power allocation, channel allocation and relay selection for decode-and-forward (DF) relay networks with a large number of sources, relays, and…

信息论 · 计算机科学 2015-03-19 Yin Sun , Zhoujia Mao , Xiaofeng Zhong , Yuanzhang Xiao , Shidong Zhou , Ness B. Shroff

Ultra-Reliable and Low-Latency Communications (URLLC) services in vehicular networks on millimeter-wave bands present a significant challenge, considering the necessity of constantly adjusting the beam directions. Conventional methods are…

信息论 · 计算机科学 2020-02-14 Yan Liu , Zhiyuan Jiang , Shunqing Zhang , Shugong Xu

The contribution describes a pedestrian navigation approach designed to improve localization accuracy in urban environments where GNSS performance is degraded, a problem that is especially critical for blind or low-vision users who depend…

机器人学 · 计算机科学 2026-02-02 Shahar Dubiner , Peng Ren , Roberto Manduchi

Towards the development of 6G mobile networks, it is promising to integrate a large number of devices from multi-dimensional platforms, and it is crucial to have a solid understanding of the theoretical limits of large-scale networks. We…

信息论 · 计算机科学 2025-09-19 Yanxiao Liu , Shenghao Yang , Cheuk Ting Li

We study the D-optimal Data Fusion (DDF) problem, which aims to select new data points, given an existing Fisher information matrix, so as to maximize the logarithm of the determinant of the overall Fisher information matrix. We show that…

最优化与控制 · 数学 2022-08-09 Yongchun Li , Marcia Fampa , Jon Lee , Feng Qiu , Weijun Xie , Rui Yao

A precise fiber-based time and frequency dissemination scheme for multiple users with a tree-like branching topology is proposed. Through this scheme, ultra-stable signals can be easily accessed online anywhere along the fiber without…

光学 · 物理学 2016-03-23 Wei Chen , Qin Liu , Nan Cheng , Dan Xu , Fei Yang , Youzhen Gui , Haiwen Cai