78 citations · 187 across the 38 of their papers we have counts for
21 papers · 1 filter
Segment-Wise Flow Matching for Vision-Aided mmWave V2I Beam Prediction
Can Zheng, Jiguang He, Chung G. Kang +3
This paper proposes a vision-conditioned flow matching (FM) framework for beam prediction in millimeter-wave vehicle-to-infrastructure links. Instead of modeling discrete beam-inde…
Low-Complexity Near-Field Channel Estimation for Hybrid RIS Assisted Systems
Rafaela Schroeder, Jiguang He, Hamza Djelouat +1
We investigate the channel estimation (CE) problem for hybrid RIS assisted systems and focus on the near-field (NF) regime. Different from their far-field counterparts, NF channels…
Device-Free 3D Drone Localization in RIS-Assisted mmWave MIMO Networks
Jiguang He, Charles Vanwynsberghe, Hui Chen +2
In this paper, we investigate the potential of reconfigurable intelligent surfaces (RISs) in facilitating passive/device-free three-dimensional (3D) drone localization within exist…
Localization in Reconfigurable Intelligent Surface Aided mmWave Systems: A Multiple Measurement Vector Based Channel Estimation Method
Kunlun Li, Jiguang He, Mohammed El-Hajjar +1
The sparsity of millimeter wave (mmWave) channels in the angular and temporal domains is beneficial to channel estimation, while the associated channel parameters can be utilized f…
ELAA Near-Field Localization and Sensing with Partial Blockage Detection
Hui Chen, Pinjun Zheng, Yu Ge +4
High-frequency communication systems bring extremely large aperture arrays (ELAA) and large bandwidths, integrating localization and (bi-static) sensing functions without extra inf…
RIS-Augmented Millimeter-Wave MIMO Systems for Passive Drone Detection
Jiguang He, Aymen Fakhreddine, George C. Alexandropoulos
In the past decade, the number of amateur drones is increasing, and this trend is expected to continue in the future. The security issues brought by abuse and misconduct of drones…
LEO Satellite and RIS: Two Keys to Seamless Indoor and Outdoor Localization
Pinjun Zheng, Xing Liu, Yuchen Zhang +3
The contemporary landscape of wireless technology underscores the critical role of precise localization services. Traditional global navigation satellite systems (GNSS)-based solut…
Fairness-Driven Optimization of RIS-Augmented 5G Networks for Seamless 3D UAV Connectivity Using DRL Algorithms
Yu Tian, Ahmed Alhammadi, Jiguang He +2
In this paper, we study the problem of joint active and passive beamforming for reconfigurable intelligent surface (RIS)-assisted massive multiple-input multiple-output systems tow…
Mean Field Game-based Waveform Precoding Design for Mobile Crowd Integrated Sensing, Communication, and Computation Systems
Dezhi Wang, Chongwen Huang, Jiguang He +5
Data collection and processing timely is crucial for mobile crowd integrated sensing, communication, and computation~(ISCC) systems with various applications such as smart home and…
A Transmit-Receive Parameter Separable Electromagnetic Channel Model for LoS Holographic MIMO
Tierui Gong, Chongwen Huang, Jiguang He +3
To support the extremely high spectral efficiency and energy efficiency requirements, and emerging applications of future wireless communications, holographic multiple-input multip…
Terahertz Communications and Sensing for 6G and Beyond: A Comprehensive Review
Wei Jiang, Qiuheng Zhou, Jiguang He +11
Next-generation cellular technologies, commonly referred to as the 6G, are envisioned to support a higher system capacity, better performance, and network sensing capabilities. The…
Unleashing 3D Connectivity in Beyond 5G Networks with Reconfigurable Intelligent Surfaces
Jiguang He, Aymen Fakhreddine, Arthur S. de Sena +2
Reconfigurable intelligent surfaces (RISs) bring various benefits to the current and upcoming wireless networks, including enhanced spectrum and energy efficiency, soft handover, t…
Holographic MIMO Communications with Arbitrary Surface Placements: Near-Field LoS Channel Model and Capacity Limit
Tierui Gong, Li Wei, Chongwen Huang +4
Envisioned as one of the most promising technologies, holographic multiple-input multiple-output (H-MIMO) recently attracts notable research interests for its great potential in ex…
STAR-RIS-Enabled Simultaneous Indoor and Outdoor 3D Localization: Theoretical Analysis and Algorithmic Design
Jiguang He, Aymen Fakhreddine, George C. Alexandropoulos
Recent research and development interests deal with metasurfaces for wireless systems beyond their consideration as intelligent tunable reflectors. Among the latest proposals is th…
3D Localization with a Single Partially-Connected Receiving RIS: Positioning Error Analysis and Algorithmic Design
Jiguang He, Aymen Fakhreddine, Charles Vanwynsberghe +2
In this paper, we introduce the concept of partially-connected Receiving Reconfigurable Intelligent Surfaces (R-RISs), which refers to metasurfaces designed to efficiently sense el…
Simultaneous Indoor and Outdoor 3D Localization with STAR-RIS-Assisted Millimeter Wave Systems
Jiguang He, Aymen Fakhreddine, George C. Alexandropoulos
Simultaneously transmitting (refracting) and reflecting reconfigurable intelligent surfaces (STAR-RISs) have been recently identified to improve the spectrum/energy efficiency and…
Beyond 5G RIS mmWave Systems: Where Communication and Localization Meet
Jiguang He, Fan Jiang, Kamran Keykhosravi +3
Upcoming beyond fifth generation (5G) communications systems aim at further enhancing key performance indicators and fully supporting brand new use cases by embracing emerging tech…
Learning to Estimate RIS-Aided mmWave Channels
Jiguang He, Henk Wymeersch, Marco Di Renzo +1
Inspired by the remarkable learning and prediction performance of deep neural networks (DNNs), we apply one special type of DNN framework, known as model-driven deep unfolding neur…
Leveraging Location Information for RIS-aided mmWave MIMO Communications
Jiguang He, Henk Wymeersch, Markku Juntti
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 es…
Channel Estimation for RIS-Aided mmWave MIMO Systems via Atomic Norm Minimization
Jiguang He, Henk Wymeersch, Markku Juntti
A reconfigurable intelligent surface (RIS) can shape the radio propagation environment by virtue of changing the impinging electromagnetic waves towards any desired directions, thu…
Radio Localization and Mapping with Reconfigurable Intelligent Surfaces
Henk Wymeersch, Jiguang He, Benoît Denis +2
5G radio at millimeter wave (mmWave) and beyond 5G concepts at 0.1-1 THz can exploit angle and delay measurements for localization, by the virtue of increased bandwidth and large a…