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In millimeter-wave (mmWave) cellular systems, reconfigurable intelligent surfaces (RISs) are foreseeably deployed with a large number of reflecting elements to achieve high beamforming gains. The large-sized RIS will make radio links fall…

信息论 · 计算机科学 2023-12-20 Baojia Luo , Yili Deng , Miaomiao Dong , Zhongyi Huang , Xiang Chen , Wei Han , Bo Bai

Intelligent reflecting surface (IRS) is a novel burgeoning concept, which possesses advantages in enhancing wireless communication and user localization, while maintaining low hardware cost and energy consumption. Herein, we establish an…

信息论 · 计算机科学 2021-03-02 Rui Wang , Zhe Xing , Erwu Liu

Six-dimensional movable antenna (6DMA) is a promising solution for enhancing wireless network capacity through the adjustment of both three-dimensional (3D) positions and 3D rotations of distributed antenna surfaces. Previous works mainly…

信息论 · 计算机科学 2024-12-09 Haozhe Wang , Xiaodan Shao , Beixiong Zheng , Xiaoming Shi , Rui Zhang

We propose the Particle Swarm Optimization (PSO) as an alternative method for locating periodic orbits in a three--dimensional (3D) model of barred galaxies. We develop an appropriate scheme that transforms the problem of finding periodic…

天体物理学 · 物理学 2009-11-10 Ch. Skokos , K. E. Parsopoulos , P. A. Patsis , M. N. Vrahatis

Signal source seeking using autonomous vehicles is a complex problem. The complexity increases manifold when signal intensities captured by physical sensors onboard are noisy and unreliable. Added to the fact that signal strength decays…

最优化与控制 · 数学 2015-01-28 Rui Zou , Vijay Kalivarapu , Eliot Winer , James Oliver , Sourabh Bhattacharya

This paper tackles the challenge of accurate positioning in Non-Line-of-Sight (NLoS) environments, with a focus on indoor public safety scenarios where NLoS bias severely impacts localization performance. We explore Diffraction MultiPath…

信号处理 · 电气工程与系统科学 2025-09-05 Gaurav Duggal , Anand M. Kumar , R. Michael Buehrer , Harpreet S. Dhillon , Nishith Tripathi , Jeffrey H. Reed

Autonomous driving and intelligent transportation applications have dramatically increased the demand for high-accuracy and low-latency localization services. While cellular networks are potentially capable of target detection and…

信息论 · 计算机科学 2024-01-08 Kaitao Meng , Qingqing Wu , Wen Chen , Deshi Li

Particle Swarm Optimisation (PSO) is a powerful optimisation algorithm that can be used to locate global maxima in a search space. Recent interest in swarms of Micro Aerial Vehicles (MAVs) begs the question as to whether PSO can be used as…

机器人学 · 计算机科学 2019-07-18 Lauren Parker , James Butterworth , Shan Luo

Localization of a wireless mobile device or a robot in indoor and GPS-denied environments is a difficult problem, particularly in dynamic scenarios where traditional cameras and LIDAR-based alternative sensing and localization modalities…

机器人学 · 计算机科学 2022-01-14 Ehsan Latif , Ramviyas Parasuraman

Intelligent reflecting surfaces (IRS) and their optimal deployment are the new technological frontier in sensing applications. Recently, IRS have demonstrated potential in advancing target estimation and detection. While the optimal…

信号处理 · 电气工程与系统科学 2023-10-24 Zahra Esmaeilbeig , Kumar Vijay Mishra , Arian Eamaz , Mojtaba Soltanalian

Incorporating integrated sensing and communication capabilities into forthcoming 6G wireless networks is crucial for achieving seamless synchronization between the digital and physical worlds. The following paper focuses on a scenario where…

信号处理 · 电气工程与系统科学 2025-02-27 Ahmad Bazzi , Marwa Chafii

Rotatable intelligent reflecting surface (IRS) introduces a new spatial degree of freedom (DoF) by dynamically adjusting orientations without the need of changing its elements' positions in real time. To unleash the full potential of…

信号处理 · 电气工程与系统科学 2026-03-04 Qiaoyan Peng , Qingqing Wu , Guangji Chen , Wen Chen , Shaodan Ma , Shanpu Shen , Rui Zhang

Displaced automotive sensor imaging exploits joint processing of the data acquired from multiple radar units, each of which may have limited individual resources, to enhance the localization accuracy. Prior works either consider perfect…

信号处理 · 电气工程与系统科学 2020-10-09 Guohua Wang , Kumar Vijay Mishra

Both passive and active intelligent reflecting surfaces (IRSs) can be deployed in complex environments to enhance wireless network coverage by creating multiple blockage-free cascaded line-of-sight (LoS) links. In this paper, we study a…

信号处理 · 电气工程与系统科学 2023-09-22 Min Fu , Weidong Mei , Rui Zhang

Indoor localization of autonomous mobile robots (AMRs) can be realized with fiducial markers. Such systems require only a simple, monocular camera as sensor and fiducial markers as passive, identifiable position references that can be…

图像与视频处理 · 电气工程与系统科学 2026-01-27 Sven Hinderer , Martina Scheffler , Bin Yang

Reconfigurable Intelligent Surface (RIS) plays a pivotal role in the sixth generation networks to enhance communication rate and localization accuracy. In this letter, we propose a positioning algorithm in a RIS-assisted environment, where…

信号处理 · 电气工程与系统科学 2024-07-10 Sajjad Ghiasvand , Arash Nasri , Ali H. Abdollahi Bafghi , Masoumeh Nasiri-Kenari

Camera-based visible light positioning (VLP) has emerged as a promising indoor positioning technique. However, the need for dedicated luminaire infrastructure and on-target cameras in existing algorithms may limit their scalability and…

信号处理 · 电气工程与系统科学 2025-08-13 Wenxuan Pan , Yang Yang , Dong Wei , Meng Zhang , Zhiyu Zhu

Intelligent reflecting surface (IRS) is composed of numerous passive reflecting elements and can be mounted on unmanned aerial vehicles (UAVs) to achieve six-dimensional (6D) movement by adjusting the UAV's three-dimensional (3D) location…

信号处理 · 电气工程与系统科学 2024-12-17 Changhao Liu , Weidong Mei , Peilan Wang , Yinuo Meng , Boyu Ning , Zhi Chen

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

This paper introduces a high-precision indoor positioning and tracking method that utilizes multi-site single-input single-output (SISO) radar systems. We propose a novel velocity synthesis-assisted (VSA) localization algorithm that…

信号处理 · 电气工程与系统科学 2026-04-20 Lang Qin , Mandong Zhang , Wenting Song , Xiaohu Wu , Zhiqiang Huang , Xiaoguang Liu