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Localization in long-range Internet of Things networks is a challenging task, mainly due to the long distances and low bandwidth used. Moreover, the cost, power, and size limitations restrict the integration of a GPS receiver in each…

网络与互联网体系结构 · 计算机科学 2019-07-26 Hazem Sallouha , Alessandro Chiumento , Sreeraj Rajendran , Sofie Pollin

The physical layer security (PLS) is investigated for reconfigurable intelligent surface (RIS) assisted wireless networks, where a source transmits its confidential information to a legitimate destination with the aid of a single small RIS…

信息论 · 计算机科学 2022-10-06 Haiyan Guo , Zhen Yang , Yulong Zou , Bin Lyu , Yuhan Jiang , Lajos Hanzo

We propose a low-complexity localization framework for uplink distributed MIMO (D-MIMO) systems, targeting the challenge of minimizing the highly spiky maximum-likelihood (ML) cost function that arises in sparsely deployed phasecoherent…

信号处理 · 电气工程与系统科学 2025-12-12 Sauradeep Dey , Musa Furkan Keskin , Dario Tagliaferri , Gonzalo Seco-Granados , Mikko Valkama , Henk Wymeersch

Accurate localization and perception are pivotal for enhancing the safety and reliability of vehicles. However, current localization methods suffer from reduced accuracy when the line-of-sight (LOS) path is obstructed, or a combination of…

信号处理 · 电气工程与系统科学 2024-08-16 Yinuo Du , Hanying Zhao , Yang Liu , Xinlei Yu , Yuan Shen

We investigate reconfigurable intelligent surfaces (RISs) for the task of position and velocity estimation in non-LOS (NLOS) indoor scenarios, using a snapshot based multi-step estimation algorithm. We evaluate a compound RIS structure…

信号处理 · 电气工程与系统科学 2026-02-16 Thomas Zemen , Musa Furkan Keskin , Moustafa Rahal , Thomas Wilding , Hamed Radpour , Markus Hofer , Benoit Denis , Henk Wymeersch

Indoor positioning plays a pivotal role in a wide range of applications, from smart homes to industrial automation. In this paper, we propose a comprehensive approach for accurate positioning in indoor environments through the integration…

网络与互联网体系结构 · 计算机科学 2023-12-27 Karamat Beigi , Hamed Shah-Mansouri

Machine learning is a powerful tool for extracting valuable information and making various predictions from diverse datasets. Traditional machine learning algorithms rely on well-defined input and output variables; however, there are…

机器学习 · 计算机科学 2025-02-05 Anh T. Hoang , Zsolt J. Viharos

This paper describes AutoFocus, an efficient multi-scale inference algorithm for deep-learning based object detectors. Instead of processing an entire image pyramid, AutoFocus adopts a coarse to fine approach and only processes regions…

计算机视觉与模式识别 · 计算机科学 2019-08-02 Mahyar Najibi , Bharat Singh , Larry S. Davis

Weakly-supervised segmentation (WSS) methods, reliant on image-level labels indicating object presence, lack explicit correspondence between labels and regions of interest (ROIs), posing a significant challenge. Despite this, WSS methods…

This paper explores a new sequential selection framework for the optimal sensor placement (OSP) in Electrocardiography imaging networks (ECGI). The proposed methodology incorporates the use a recent experimental design method for the…

机器学习 · 计算机科学 2022-09-08 Emad Alenany , Changqing Cheng

SiFo, a wireless foundation model-based framework, is proposed for low-overhead site-specific channel state information (CSI) feedback. In 3GPP NR, Type-II feedback provides an expressive codebook-based CSI representation, but it requires…

信号处理 · 电气工程与系统科学 2026-05-18 Cheng-Jie Zhao , Zhaolin Wang , Zongyao Zhao , Yuanwei Liu

Recognizing 3D objects in the presence of noise, varying mesh resolution, occlusion and clutter is a very challenging task. This paper presents a novel method named Rotational Projection Statistics (RoPS). It has three major modules: Local…

计算机视觉与模式识别 · 计算机科学 2013-04-12 Yulan Guo , Ferdous Sohel , Mohammed Bennamoun , Min Lu , Jianwei Wan

We study compressive sensing in the spatial domain to achieve target localization, specifically direction of arrival (DOA), using multiple-input multiple-output (MIMO) radar. A sparse localization framework is proposed for a MIMO array in…

信息论 · 计算机科学 2014-07-03 Marco Rossi , Alexander M. Haimovich , Yonina C. Eldar

With the unprecedented demand for location-based services in indoor scenarios, wireless indoor localization has become essential for mobile users. While GPS is not available at indoor spaces, WiFi RSS fingerprinting has become popular with…

信号处理 · 电气工程与系统科学 2020-09-15 Qianwen Ye , Xiaochen Fan , Gengfa Fang , Hongxia Bie , Chaocan Xiang , Xudong Song , Xiangjian He

Acquiring an anatomical map from position data is important for medical applications where catheters interact with soft tissues. To improve autonomous navigation in these settings, we require information beyond nonparametric maps typically…

机器人学 · 计算机科学 2020-07-14 Michael R. Walker

Time-based indoor positioning techniques rely on multiple access points (APs) and measurements between the user equipment (UE) and the APs. In dense indoor environments, occlusion-induced non-line-of-sight (NLoS) propagation introduces…

信号处理 · 电气工程与系统科学 2026-05-20 Neetu R. R , Shrihari Vasudevan , Ranjani H. G

Classical pairwise image registration methods search for a spatial transformation that optimises a numerical measure that indicates how well a pair of moving and fixed images are aligned. Current learning-based registration methods have…

图像与视频处理 · 电气工程与系统科学 2019-10-22 Yipeng Hu , Eli Gibson , Dean C. Barratt , Mark Emberton , J. Alison Noble , Tom Vercauteren

The trend towards autonomous driving and the continuous research in the automotive area, like Advanced Driver Assistance Systems (ADAS), requires an accurate localization under all circumstances. An accurate estimation of the vehicle state…

信号处理 · 电气工程与系统科学 2020-05-15 Eduardo Sánchez Morales , Michael Botsch , Bertold Huber , Andrés García Higuera

Recent years have seen the increasing need of location awareness by mobile applications. This paper presents a room-level indoor localization approach based on the measured room's echos in response to a two-millisecond single-tone inaudible…

声音 · 计算机科学 2018-09-10 Qun Song , Chaojie Gu , Rui Tan

Ensuring positioning integrity amid faulty measurements is crucial for safety-critical applications, making receiver autonomous integrity monitoring (RAIM) indispensable. This paper introduces a Bayesian RAIM algorithm with a streamlined…

信号处理 · 电气工程与系统科学 2025-09-15 Liqin Ding , Gonzalo Seco-Granados , Hyowon Kim , Russ Whiton , Erik G. Ström , Jonas Sjöberg , Henk Wymeersch
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