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Analysis of line-of-sight and non-line-of-sight (LOS/NLOS) visibility conditions is an important aspect of wireless channel modeling. For statistical channel models the Monte Carlo simulations are usually used to generate spatially…

信息论 · 计算机科学 2020-05-06 Rimvydas Aleksiejunas

Well-known methods are employed to localize mobile station (MS) using line of sight (LOS) measurements. These methods may result in large error if they are fed with non LOS (NLOS) measurements. Our proposed algorithm, referred to as Sparse…

信号处理 · 电气工程与系统科学 2018-03-20 Abbas Abolfathi , Fereidoon Behnia , Farokh Marvasti

Optical imaging through diffusive, visually-opaque barriers, and around corners is an important challenge in many fields, ranging from defense to medical applications. Recently, novel techniques that combine time-of-flight (TOF)…

光学 · 物理学 2023-05-12 Jeremy Boger-Lombard , Ori Katz

Localization and tracking of a mobile node (MN) in non-line-of-sight (NLOS) scenarios, based on time of arrival (TOA) measurements, is considered in this work. To this end, we develop a constrained form of square root unscented Kalman…

应用统计 · 统计学 2016-11-17 Siamak Yousefi , Xiao-Wen Chang , Benoit Champagne

Accurate and globally referenced global navigation satellite system (GNSS) based vehicular positioning can be achieved in outlier-free open areas. However, the performance of GNSS can be significantly degraded by outlier measurements, such…

信号处理 · 电气工程与系统科学 2021-09-07 Weisong Wen , Guohao Zhang , Li-Ta Hsu

This paper introduces an indoor localization method using fixed reflector objects within the environment, leveraging a base station (BS) equipped with Angle of Arrival (AoA) and Time of Arrival (ToA) measurement capabilities. The…

信息论 · 计算机科学 2024-06-05 Milad Johnny , Shahrokh Valaee

Visual object recognition under situations in which the direct line-of-sight is blocked, such as when it is occluded around the corner, is of practical importance in a wide range of applications. With coherent illumination, the light…

计算机视觉与模式识别 · 计算机科学 2019-04-17 Xin Lei , Liangyu He , Yixuan Tan , Ken Xingze Wang , Xinggang Wang , Yihan Du , Shanhui Fan , Zongfu Yu

This paper proposes an environment-aware near-field (NF) user equipment (UE) tracking method for extremely large aperture arrays. By integrating known surface geometries and tracking the line-of-sight (LOS) and non-line-of-sight (NLOS)…

信号处理 · 电气工程与系统科学 2026-03-16 Hyunwoo Park , Hyeon Seok Rou , Giuseppe Thadeu Freitas de Abreu , Sunwoo Kim

Passive reflectors mitigate millimeter-wave (mmwave) link blockages by extending coverage to non-line-ofsight (NLoS) regions. However, their deployment often leads to irregular reflected beam patterns and coverage gaps. This results in…

系统与控制 · 电气工程与系统科学 2024-09-04 Omar Ibrahim , Raj Sai Sohel Bandari , Mohammed E. Eltayeb

Navigation applications relying on the Global Navigation Satellite System (GNSS) are limited in indoor environments and GNSS-denied outdoor terrains such as dense urban or forests. In this paper, we present a novel accurate, robust and…

机器人学 · 计算机科学 2019-12-04 Qin Shi , Xiaowei Cui , Wei Li , Yu Xia , Mingquan Lu

Pedestrians Localization in Non-Line-of-Sight (NLoS) regions within urban environments poses a significant challenge for autonomous driving systems. While mmWave radar has demonstrated potential for detecting objects in such scenarios, the…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Byeonggyu Park , Hee-Yeun Kim , Byonghyok Choi , Hansang Cho , Byungkwan Kim , Soomok Lee , Mingu Jeon , Seong-Woo Kim

This paper presents a formal method for characterizing the potential outliers from the data signature projection of traffic data set using Non-Metric Multidimensional Scaling (nMDS) visualization. Previous work had only relied on visual…

其他计算机科学 · 计算机科学 2017-02-27 Erlo Robert F. Oquendo , Jhoirene B. Clemente , Jasmine A. Malinao , Henry N. Adorna

As urban air mobility (UAM) emerges as a transformative solution to urban transportation, the demand for robust communication frameworks capable of supporting high-density aerial traffic becomes increasingly critical. An essential area of…

信号处理 · 电气工程与系统科学 2025-05-01 Abdullah Abu Zaid , Baha Eddine Youcef Belmekki , Mohamed-Slim Alouini

Trapped human detection in search and rescue (SAR) scenarios poses a significant challenge in pervasive computing. This study addresses this issue by leveraging machine learning techniques, given their high accuracy. However, accurate…

信号处理 · 电气工程与系统科学 2024-02-29 Jiya A. Enoch , Ilesanmi B. Oluwafemi , Francis A. Ibikunle , Olulope K. Paul

In this paper, we propose a novel indoor localization scheme that exploits ubiquitous visible lights, which are necessarily and densely deployed in almost all indoor environments. We unveil two phenomena of lights available for positioning:…

网络与互联网体系结构 · 计算机科学 2015-06-03 Yiqing Hu , Yan Xiong , Wenchao Huang , Xiang-Yang Li , Yanan Zhang , Xufei Mao , Panlong Yang , Caimei Wang

The continuously increasing bandwidth and antenna aperture available in wireless networks laid the foundation for developing competitive positioning solutions relying on communications standards and hardware. However, poor propagation…

State estimation is an essential part of autonomous systems. Integrating the Ultra-Wideband(UWB) technique has been shown to correct the long-term estimation drift and bypass the complexity of loop closure detection. However, few works on…

机器人学 · 计算机科学 2023-03-01 Haodong Jiang , Wentao Wang , Yuan Shen , Xinghan Li , Xiaoqiang Ren , Biqiang Mu , Junfeng Wu

Distributed multiple-input multiple-output (MIMO) architectures enable large-scale integrated sensing and communication (ISAC) by providing high spatial resolution and robustness through spatial diversity. However, practical phase-coherent…

信号处理 · 电气工程与系统科学 2026-03-17 Xin Tong , Lechen Zhang , Yu Ge , Dario Tagliaferri , Henk Wymeersch

Accurate and low-power indoor localization is becoming more and more of a necessity to empower novel consumer and industrial applications. In this field, the most promising technology is based on UWB modulation; however, current UWB…

信号处理 · 电气工程与系统科学 2023-12-22 Tobias Margiani , Silvano Cortesi , Milena Keller , Christian Vogt , Tommaso Polonelli , Michele Magno

Vehicular visible light communication (V-VLC) aims to provide secure complementary vehicle to everything communications (V2X) to increase road safety and traffic efficiency. V-VLC provides directional transmissions, mainly enabling…

信号处理 · 电气工程与系统科学 2021-11-23 Bugra Turan , Omer Narmanlioglu , Osman Nuri Koc , Emrah Kar , Sinem Coleri , Murat Uysal