23 citations · 25 across the 23 of their papers we have counts for
13 papers · 1 filter
Digital Twin-Assisted High-Precision Massive MIMO Localization in Urban Canyons
Ziqin Zhou, Hui Chen, Gerhard Steinböck +1
High-precision wireless localization in urban canyons is challenged by noisy measurements and severe non-line-of-sight (NLOS) propagation. This paper proposes a robust three-stage…
Integrated Cellular and LEO-based Positioning and Synchronization under User Mobility
Yasaman Ettefagh, Sharief Saleh, Musa Furkan Keskin +3
This paper investigates the localization, synchronization, and speed estimation of a mobile user equipment (UE) leveraging integrated terrestrial and non-terrestrial networks (NTNs…
Hybrid Codebook Design for Localization Using Electromagnetically Reconfigurable Fluid Antenna System
Alireza Fadakar, Yuchen Zhang, Hui Chen +3
Electromagnetically reconfigurable fluid antenna systems (ER-FAS) introduce additional degrees of freedom in the electromagnetic (EM) domain by dynamically steering per-antenna rad…
RIS Beam Calibration for ISAC Systems: Modeling and Performance Analysis
Mengting Li, Hui Chen, Sigurd Sandor Petersen +5
High-accuracy localization is a key enabler for integrated sensing and communication (ISAC), playing an essential role in various applications such as autonomous driving. Antenna a…
Near-Field RIS-Assisted Localization Under Mutual Coupling
Alireza Fadakar, Musa Furkan Keskin, Hui Chen +2
Reconfigurable intelligent surfaces (RISs) have the potential to significantly enhance the performance of integrated sensing and communication (ISAC) systems, particularly in line-…
Joint Bistatic Positioning and Monostatic Sensing: Optimized Beamforming and Performance Tradeoff
Yuchen Zhang, Hui Chen, Pinjun Zheng +4
We investigate joint bistatic positioning (BP) and monostatic sensing (MS) within a multi-input multi-output orthogonal frequency-division system. Based on the derived Cramér-Rao B…
Optimized Beamforming for Joint Bistatic Positioning and Monostatic Sensing
Yuchen Zhang, Hui Chen, Pinjun Zheng +3
We investigate the performance tradeoff between \textit{bistatic positioning (BP)} and \textit{monostatic sensing (MS)} in a multi-input multi-output orthogonal frequency division…
Privacy Preservation in MIMO-OFDM Localization Systems: A Beamforming Approach
Yuchen Zhang, Hui Chen, Musa Furkan Keskin +4
We investigate an uplink MIMO-OFDM localization scenario where a legitimate base station (BS) aims to localize a user equipment (UE) using pilot signals transmitted by the UE, whil…
Joint Near-Field Sensing and Visibility Region Detection with Extremely Large Aperture Arrays
Huiping Huang, Alireza Pourafzal, Hui Chen +6
In this paper, we consider near-field localization and sensing with an extremely large aperture array under partial blockage of array antennas, where spherical wavefront and spatia…
RIS-Aided Positioning Under Adverse Conditions: Interference from Unauthorized RIS
Mengting Li, Hui Chen, Alireza Pourafzal +1
Positioning technology, which aims to determine the geometric information of a device in a global coordinate, is a key component in integrated sensing and communication systems. In…
Intrinsic Cramér-Rao Bound based 6D Localization and Tracking for 5G/6G Systems
Xueting Xu, Hui Chen, Shengqiang Shen +5
Localization and tracking are critical components of integrated sensing and communication (ISAC) systems, enhancing resource management, beamforming accuracy, and overall system re…
Integrated 6G TN and NTN Localization: Challenges, Opportunities, and Advancements
Sharief Saleh, Pinjun Zheng, Xing Liu +8
The rapid evolution of cellular networks has introduced groundbreaking technologies, including large and distributed antenna arrays and reconfigurable intelligent surfaces in terre…
Modern Base Station Architecture: Enabling Passive Beamforming with Beyond Diagonal RISs
Mahmoud Raeisi, Hui Chen, Henk Wymeersch +1
Beamforming plays a crucial role in millimeter wave (mmWave) communication systems to mitigate the severe attenuation inherent to this spectrum. However, the use of large active an…