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Intelligent reflecting surface (IRS) has emerged as a revolutionizing solution to enhance wireless communications by intelligently changing the propagation environment. Prior studies on IRS are based on an ideal reflection model with a…

Signal Processing · Electrical Eng. & Systems 2020-06-03 Wenhao Cai , Hongyu Li , Ming Li , Qian Liu

Intelligent reflecting surfaces (IRS) are valuable tools for enhancing the intelligence of the propagation environment. They have the ability to direct EM Waves to a specific user through beamforming. A significant number of passive…

Applied Physics · Physics 2024-05-13 Mohammadreza Jahangiri , Hossein Soleimani , Mohammad Soleimani

With growing security threats to the evolving wireless systems, protecting user privacy becomes progressively challenging. Even if the transmitted information is encrypted and the potential wiretap channel is physically limited (e.g.…

Networking and Internet Architecture · Computer Science 2020-04-06 Xiao Lu , Ekram Hossain , Tania Shafique , Shaohan Feng , Hai Jiang , Dusit Niyato

Current scene depth estimation approaches mainly rely on optical sensing, which carries privacy concerns and suffers from estimation ambiguity for distant, shiny, and transparent surfaces/objects. Reconfigurable intelligent surfaces (RISs)…

Signal Processing · Electrical Eng. & Systems 2022-11-16 Abdelrahman Taha , Hao Luo , Ahmed Alkhateeb

The reconfigurable intelligent surface (RIS) can help establish secondary line-of-sight links for 5G mmWave and beyond applications to cater for the large path loss and blockage in millimeter-wave direct links. It is desirable that the RISs…

Optics · Physics 2025-09-09 Yiming Yang , Mohammad Vaseem , Ruiqi Wang , Behrooz Makki , Atif Shamim

Traditional metasurfaces often face challenges in achieving broadband functionality and dynamic adaptability, limiting their use in advanced electromagnetic systems. This paper presents a triple circular ring metasurface designed for…

To navigate reliably in indoor environments, an industrial autonomous vehicle must know its position. However, current indoor vehicle positioning technologies either lack accuracy, usability or are too expensive. Thus, we propose a novel…

Robotics · Computer Science 2024-02-01 Pascal Schlachter , Zhibin Yu , Naveed Iqbal , Xiaofeng Wu , Sven Hinderer , Bin Yang

The requirements of vehicular communications grow with increasing level of automated driving and future applications of intelligent transportation systems (ITS). Beside the ever-increasing need for high capacity radio links, reliability and…

Networking and Internet Architecture · Computer Science 2021-08-31 Karsten Heimann , Benjamin Sliwa , Manuel Patchou , Christian Wietfeld

Robust perception is a vital component for ensuring safe autonomous and assisted driving. Automotive radar (77 to 81 GHz), which offers weather-resilient sensing, provides a complementary capability to the vision- or LiDAR-based autonomous…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Jen-Hao Cheng , Sheng-Yao Kuan , Hugo Latapie , Gaowen Liu , Jenq-Neng Hwang

Around-the-corner radar sensing offers an opportunity for the radar to exploit multipath scattering along walls to detect targets beyond blockages. However, the radar detection performance is limited to spotting uncooperative targets at…

Signal Processing · Electrical Eng. & Systems 2026-02-13 Kainat Yasmeen , Shobha Sundar Ram , Debidas Kundu

Immersed reflection gratings improve spectral resolving power by enabling diffraction within a high refractive index medium. This principle has been widely adopted to make grating spectrometers more compact. Conventional immersed gratings…

Millimeter-wave radar systems are one of the core components of the safety-critical Advanced Driver Assistant System (ADAS) of a modern vehicle. Due to their ability to operate efficiently despite bad weather conditions and poor visibility,…

Cryptography and Security · Computer Science 2022-05-16 Mihai Ordean , Flavio D. Garcia

The following paper presents a systematic 3rd Generation Partnership Project (3GPP)-compliant characterization of radar cross section (RCS) for indoor factory (InF) objects, including small and mid-sized unmanned aerial vehicles (UAVs),…

Signal Processing · Electrical Eng. & Systems 2025-05-14 Ali Waqar Azim , Ahmad Bazzi , Roberto Bomfin , Marwa Chafii

Reverberation chambers (RCs) were recently reported as a low-cost alternative to anechoic chambers (ACs) to perform radar cross-section (RCS) pattern measurements. The method consists of using transmitting and receiving antennas pointing…

An intelligent reflecting surface (IRS) consists of passive reflective elements capable of altering impinging waveforms. The IRS-aided radar systems have recently been shown to improve detection and estimation performance by exploiting the…

Signal Processing · Electrical Eng. & Systems 2023-03-27 Zahra Esmaeilbeig , Arian Eamaz , Kumar Vijay Mishra , Mojtaba Soltanalian

The rapid development of sixth-generation (6G) wireless networks requires seamless integration of communication and sensing to support ubiquitous intelligence and real-time, high-reliability applications. Integrated sensing and…

Signal Processing · Electrical Eng. & Systems 2025-11-17 Qingqing Wu , Qiaoyan Peng , Ziheng Zhang , Xiaodan Shao , Yang Liu , Yifan Jiang , Yapeng Zhao , Yanze Zhu , Yilong Chen , Zixiang Ren , Jie Xu , Wen Chen , Rui Zhang

Electronic countermeasure (ECM) technology plays a critical role in modern electronic warfare, which can interfere with enemy radar detection systems by noise or deceptive signals. However, the conventional active jamming strategy incurs…

Information Theory · Computer Science 2024-05-14 Haozhe Wang , Beixiong Zheng , Xiaodan Shao , Rui Zhang

"This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible." Driver's interaction with a vehicle via automatic gesture recognition is…

Signal Processing · Electrical Eng. & Systems 2024-11-26 Netanel Blumenfeld , Inna Stainvas , Igal Bilik

High-Fidelity 3D scene reconstruction plays a crucial role in autonomous driving by enabling novel data generation from existing datasets. This allows simulating safety-critical scenarios and augmenting training datasets without incurring…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Pou-Chun Kung , Skanda Harisha , Ram Vasudevan , Aline Eid , Katherine A. Skinner

Autonomous driving applications use two types of sensor systems to identify vehicles - depth sensing LiDAR and radiance sensing cameras. We compare the performance (average precision) of a ResNet for vehicle detection in complex, daytime,…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Zhenyi Liu , Joyce Farrell , Brian Wandell