17 papers
Networked Tracking of Multiple Moving Targets in 6G Network
Yanmo Hu, Weifeng Zhu, Chenshu Wu +3
This paper considers a networked tracking architecture in 6G integrated sensing and communication (ISAC) systems, where multiple base stations (BSs) cooperatively transmit radio si…
DF-3DRME: A Data-Friendly Learning Framework for 3D Radio Map Estimation based on Super-Resolution Technique
Lin Zhu, Weifeng Zhu, Shuowen Zhang +2
High-Resolution three-dimensional (3D) radio maps (RMs) provide rich information about the radio landscape that is essential to a myriad of wireless applications in the future wire…
SAR/ISAR Imaging in 6G Network
Yanmo Hu, Shuowen Zhang, Ross Murch +1
Imaging is a crucial sensing function that finds wide applications in environmental reconstruction, autonomous driving, etc. However, the signal processing methods for existing rad…
On Channel Estimation for Group-Connected Beyond Diagonal RIS Assisted Multi-User MIMO Communication
Rui Wang, Junyuan Gao, Shuowen Zhang +2
Beyond diagonal reconfigurable intelligent surface (BD-RIS) architectures offer superior beamforming gain over conventional diagonal RISs. However, the channel estimation overhead…
Channel Estimation for Double-BD-RIS-Assisted Multi-User MIMO Communication
Junyuan Gao, Shuowen Zhang, Liang Liu
Deploying multiple beyond diagonal reconfigurable intelligent surfaces (BD-RISs) can potentially improve the communication performance thanks to inter-element connections of each B…
m^3TrackFormer: Transformer-based mmWave Multi-Target Tracking with Lost Target Re-Acquisition Capability
Tongkai Li, Weifeng Zhu, Shuowen Zhang +3
This paper considers a millimeter wave (mmWave) integrated sensing and communication (ISAC) system, where a base station (BS) equipped with a large number of antennas but a small n…
Joint Multi-User Tracking and Signal Detection in Reconfigurable Intelligent Surface-Assisted Cell-Free ISAC Systems
Weifeng Zhu, Junyuan Gao, Shuowen Zhang +2
This paper investigates the cell-free multi-user integrated sensing and communication (ISAC) system, where multiple base stations collaboratively track the users and detect their s…
Reconfigurable Intelligent Surface-Assisted Multiuser Tracking and Signal Detection in ISAC
Weifeng Zhu, Junyuan Gao, Shuowen Zhang +1
This paper investigates the multiuser tracking and signal detection problem in integrated sensing and communication (ISAC) systems with the assistance of reconfigurable intelligent…
Scalable Transceiver Design for Multi-User Communication in FDD Massive MIMO Systems via Deep Learning
Lin Zhu, Weifeng Zhu, Shuowen Zhang +2
This paper addresses the joint transceiver design, including pilot transmission, channel feature extraction and feedback, as well as precoding, for low-overhead downlink massive mu…
Low-Overhead Channel Estimation Framework for Beyond Diagonal Reconfigurable Intelligent Surface Assisted Multi-User MIMO Communication
Rui Wang, Shuowen Zhang, Bruno Clerckx +1
Beyond diagonal reconfigurable intelligent surface (BD-RIS) refers to a family of RIS architectures characterized by scattering matrices not limited to being diagonal and enables h…
Intelligent Reflecting Surface Based Localization of Mixed Near-Field and Far-Field Targets
Weifeng Zhu, Qipeng Wang, Shuowen Zhang +3
This paper considers an intelligent reflecting surface (IRS)-assisted bi-static localization architecture for the sixth-generation (6G) integrated sensing and communication (ISAC)…
Joint Transmission and Compression Optimization for Networked Sensing with Limited-Capacity Fronthaul Links
Weifeng Zhu, Shuowen Zhang, Liang Liu
This paper considers networked sensing in cellular network, where multiple base stations (BSs) first compress their received echo signals from multiple targets and then forward the…
Joint LOS Identification and Data Association for 6G-Enabled Networked Device-Free Sensing
Qin Shi, Liang Liu
This paper considers networked device-free sensing in an orthogonal frequency division multiplexing (OFDM) cellular system with multipath environment, where the passive targets ref…
Over-the-Air Diagnosis of Defective Elements in Intelligent Reflecting Surface
Ziyi Zhao, Zhaorui Wang, Lin Zhou +4
Due to circuit failures, defective elements that cannot adaptively adjust the phase shifts of their impinging signals in a desired manner may exist on an intelligent reflecting sur…
UAV Trajectory Optimization for Sensing Exploiting Target Location Distribution Map
Xiangming Du, Shuowen Zhang, Liang Liu
In this paper, we study the trajectory optimization of a cellular-connected unmanned aerial vehicle (UAV) which aims to sense the location of a target while maintaining satisfactor…
Leveraging A Variety of Anchors in Cellular Network for Ubiquitous Sensing
Liang Liu, Shuowen Zhang, Shuguang Cui
Integrated sensing and communication (ISAC) has recently attracted tremendous attention from both academia and industry, being envisioned as a key part of the standards for the six…
User Equipment Assisted Localization for 6G Integrated Sensing and Communication
Xianzhen Guo, Qin Shi, Shuowen Zhang +2
This paper investigates user equipment (UE) assisted device-free networked sensing in the sixth-generation (6G) integrated sensing and communication (ISAC) system, where one base s…