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相关论文: Harnessing NLOS Components for Position and Orient…

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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

Measurement results for millimeter wave LOS MIMO systems are presented with a focus on time variation and multipath propagation. Different system setups are used, including 2x2 and 3x3 MIMO, and involving different synchronization…

信号处理 · 电气工程与系统科学 2018-03-22 Tim Hälsig , Darko Cvetkovski , Eckhard Grass , Berthold Lankl

The future 5G networks are expected to use millimeter wave (mmWave) frequency bands, mainly due to the availability of large unused spectrum. However, due to high path loss at mmWave frequencies, coverage of mmWave signals can get severely…

信号处理 · 电气工程与系统科学 2018-08-21 Wahab Khawaja , Ozgur Ozdemir , Yavuz Yapici , Ismail Guvenc , Martins Ezuma , Yuichi Kakishimay

Near-field (NF) communications is receiving renewed attention in the context of passive reconfigurable intelligent surfaces (RISs) due to their potentially extremely large dimensions. Although line-of-sight (LOS) links are expected to be…

信号处理 · 电气工程与系统科学 2025-08-18 Mohamadreza Delbari , George C. Alexandropoulos , Robert Schober , H. Vincent Poor , Vahid Jamali

mmWave communication has come up as the unexplored spectrum for 5G services. With new standards for 5G NR positioning, more off-the-shelf platforms and algorithms are needed to perform indoor positioning. An object can be accurately…

信号处理 · 电气工程与系统科学 2024-03-15 Neharika Valecha , Jesus Omar Lacruz , Michael Lentmaier , Joerg Widmer , Fredrik Tufvesson

The paper addresses the problem of determining the unknown position of a mobile station for a mmWave MISO system. This setup is motivated by the fact that massive arrays will be initially implemented only on 5G base stations, likely leaving…

信号处理 · 电气工程与系统科学 2018-11-29 Alessio Fascista , Angelo Coluccia , Henk Wymeersch , Gonzalo Seco-Granados

5G millimeter wave (mmWave) technology is envisioned to be an integral part of next-generation vehicle-to-everything (V2X) networks and autonomous vehicles due to its broad bandwidth, wide field of view sensing, and precise localization…

信号处理 · 电气工程与系统科学 2018-04-11 Chethan Kumar Anjinappa , Ismail Guvenc

Simultaneous lightwave information and power transfer (SLIPT) is a potential way to meet the demands of sustainable power supply and high-rate data transfer in next-generation networks. Although resonant beam-based SLIPT (RB-SLIPT) can…

光学 · 物理学 2022-07-28 Mingqing Liu , Shuaifan Xia , Mingliang Xiong , Mengyuan Xu , Qingwen Liu , Hao Deng

Multi-point detection of the full-scale environment is an important issue in autonomous driving. The state-of-the-art positioning technologies (such as RADAR and LIDAR) are incapable of real-time detection without line-of-sight. To address…

信息论 · 计算机科学 2019-05-01 Zezhong Zhang , Seung-Woo Ko , Rui Wang , Kaibin Huang

5G new radio (NR) provides new opportunities for accurate positioning from a single reference station: large bandwidth combined with multiple antennas, at both the base station and user sides, allows for unparalleled angle and delay…

信号处理 · 电气工程与系统科学 2019-01-08 Henk Wymeersch , Nil Garcia , Hyowon Kim , Gonzalo Seco-Granados , Sunwoo Kim , Fuxi Wen , Markus Fröhle

Envisioned for fifth generation (5G) systems, millimeter-wave (mmWave) communications are under very active research worldwide. Although pencil beams with accurate beamtracking may boost the throughput of mmWave systems, this poses great…

网络与互联网体系结构 · 计算机科学 2019-08-29 Rafail Ismayilov , Megumi Kaneko , Takefumi Hiraguri , Kentaro Nishimori

This paper introduces a new approach to localize user devices located in non-line-of-sight (NLOS) areas using a passive, non-reconfigurable, and frequency-selective metasurface called metaprism. By analyzing the spatial filtering of…

信号处理 · 电气工程与系统科学 2023-07-25 Marina Lotti , Giacomo Calesini , Davide Dardari

Non-line-of-sight (NLOS) operation is one of the open issues to be solved for integrated sensing and communication (ISAC) systems to become a pillar of the future wireless infrastructure above 10 GHz. Existing NLOS countermeasures use…

信号处理 · 电气工程与系统科学 2024-10-04 Davide Tornielli Bellini , Dario Tagliaferri , Marouan Mizmizi , Stefano Tebaldini , Umberto Spagnolini

Location information offered by external positioning systems, e.g., satellite navigation, can be used as prior information in the process of beam alignment and channel parameter estimation for reconfigurable intelligent surface (RIS)-aided…

信号处理 · 电气工程与系统科学 2021-03-30 Jiguang He , Henk Wymeersch , Markku Juntti

The handover (HO) procedure is one of the most critical functions in a cellular network driven by measurements of the user channel of the serving and neighboring cells. The success rate of the entire HO procedure is significantly affected…

机器学习 · 计算机科学 2024-11-18 Dino Pjanić , Alexandros Sopasakis , Andres Reial , Fredrik Tufvesson

LiDARs are being increasingly deployed for consumer imaging in handheld, wearable, and robotic applications. These sensors can capture the time-of-flight of light at picosecond resolution, which in principle, enables them to capture…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Siddharth Somasundaram , Aaron Young , Akshat Dave , Adithya Pediredla , Ramesh Raskar

Multipath and non-line-of-sight (NLOS) signals are the major causes of poor accuracy of a global navigation satellite system (GNSS) in urban areas. Despite the wide usage of the GNSS in populated urban areas, it is difficult to suggest a…

系统与控制 · 电气工程与系统科学 2022-06-10 Yongjun Lee , Yoola Hwang , Jae Young Ahn , Jiwon Seo , Byungwoon Park

We develop a unified Fisher-information framework for localization in environments with both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) paths, focusing on diffraction-dominated NLOS propagation characteristic of Outdoor-to-Indoor…

信号处理 · 电气工程与系统科学 2026-04-02 Gaurav Duggal , R. Michael Buehrer , Harpreet S. Dhillon , Jeffrey H. Reed

In this paper some new experimental results about the statistical characterization of the non-line-of-sight (NLOS) bias affecting time-of-arrival (TOA) estimation in ultrawideband (UWB) wireless localization systems are illustrated. Then,…

信息论 · 计算机科学 2012-03-14 Francesco Montorsi , Fabrizio Pancaldi , Giorgio M. Vitetta

This paper presents a feasibility study for a novel positioning-communication integrated signal called Multi-Scale Non-Orthogonal Multiple Access (MS-NOMA) for 5G positioning. One of the main differences between the MS-NOMA and the…

信号处理 · 电气工程与系统科学 2019-10-11 Lu Yin , Jiameng Cao , Zhongliang Deng , Qiang Ni , Song Li , Xinyu Zheng , Hanhua Wang