600 citations · 979 across the 39 of their papers we have counts for
39 papers
Handover-Aware Trajectory Optimization for Cellular-Connected UAV
Xiangming Du, Shuowen Zhang, Francis C. -M. Lau
In this letter, we study a cellular-connected unmanned aerial vehicle (UAV) which aims to complete a mission of flying between two pre-determined locations while maintaining satisf…
Reducing Channel Estimation and Feedback Overhead in IRS-Aided Downlink System: A Quantize-then-Estimate Approach
Rui Wang, Zhaorui Wang, Liang Liu +2
Channel state information (CSI) acquisition is essential for the base station (BS) to fully reap the beamforming gain in intelligent reflecting surface (IRS)-aided downlink communi…
Secure Integrated Sensing and Communication Exploiting Target Location Distribution
Kaiyue Hou, Shuowen Zhang
In this paper, we study a secure integrated sensing and communication (ISAC) system where one multi-antenna base station (BS) simultaneously serves a downlink communication user an…
MIMO Radar Transmit Signal Optimization for Target Localization Exploiting Prior Information
Chan Xu, Shuowen Zhang
In this paper, we consider a multiple-input multiple-output (MIMO) radar system for localizing a target based on its reflected echo signals. Specifically, we aim to estimate the ra…
A Heterogeneous 6G Networked Sensing Architecture with Active and Passive Anchors
Qipeng Wang, Liang Liu, Shuowen Zhang +2
In the future 6G integrated sensing and communication (ISAC) cellular systems, networked sensing is a promising technique that can leverage the cooperation among the base stations…
Joint Data Association, NLOS Mitigation, and Clutter Suppression for Networked Device-Free Sensing in 6G Cellular Network
Qin Shi, Liang Liu, Shuowen Zhang
Recently, there is a growing interest in achieving integrated sensing and communication (ISAC) in the sixth-generation (6G) cellular network. Inspired by this trend and the success…
Trajectory Optimization of Cellular-Connected UAV for Information Collection and Transmission
Xianzhen Guo, Shuowen Zhang, Liang Liu
In this paper, we consider a cellular-connected unmanned aerial vehicle (UAV) with an information collection and transmission mission for multiple ground targets. Specifically, the…
Networked Sensing in 6G Cellular Networks: Opportunities and Challenges
Liang Liu, Shuowen Zhang, Rui Du +2
Radar and wireless communication are widely acknowledged as the two most successful applications of the radio technology over the past decades. Recently, there is a trend in both a…
Trilateration-Based Device-Free Sensing: Two Base Stations and One Passive IRS Are Sufficient
Qipeng Wang, Liang Liu, Shuowen Zhang +1
The classic trilateration technique can localize each target based on its distances to three anchors with known coordinates. Usually, this technique requires all the anchors and ta…
Exploiting Temporal Side Information in Massive IoT Connectivity
Qipeng Wang, Liang Liu, Shuowen Zhang +1
This paper considers the joint device activity detection and channel estimation problem in a massive Internet of Things (IoT) connectivity system, where a large number of IoT devic…
Device-Free Sensing in OFDM Cellular Network
Qin Shi, Liang Liu, Shuowen Zhang +1
This paper considers device-free sensing in an orthogonal frequency division multiplexing (OFDM) cellular network to enable integrated sensing and communication (ISAC). A novel two…
Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G
Yuanwei Liu, Shuowen Zhang, Xidong Mu +5
Due to the explosive growth in the number of wireless devices and diverse wireless services, such as virtual/augmented reality and Internet-of-Everything, next generation wireless…
Massive MIMO Communication with Intelligent Reflecting Surface
Zhaorui Wang, Liang Liu, Shuowen Zhang +1
This paper studies the feasibility of deploying intelligent reflecting surfaces (IRSs) in massive MIMO (multiple-input multiple-output) systems to improve the performance of users…
A New Channel Estimation Strategy in Intelligent Reflecting Surface Assisted Networks
Rui Wang, Liang Liu, Shuowen Zhang +1
Channel estimation is the main hurdle to reaping the benefits promised by the intelligent reflecting surface (IRS), due to its absence of ability to transmit/receive pilot signals…
Double-IRS Aided MIMO Communication under LoS Channels: Capacity Maximization and Scaling
Yitao Han, Shuowen Zhang, Lingjie Duan +1
Intelligent reflecting surface (IRS) is a promising technology to extend the wireless signal coverage and support the high performance communication. By intelligently adjusting the…
On Massive IoT Connectivity with Temporally-Correlated User Activity
Qipeng Wang, Liang Liu, Shuowen Zhang +1
This paper considers joint device activity detection and channel estimation in Internet of Things (IoT) networks, where a large number of IoT devices exist but merely a random subs…
UAV-Assisted Image Acquisition: 3D UAV Trajectory Design and Camera Control
Xiao-Wei Tang, Shuowen Zhang, Changsheng You +2
In this paper, we consider a new unmanned aerial vehicle (UAV)-assisted oblique image acquisition system where a UAV is dispatched to take images of multiple ground targets (GTs).…
A Two-Stage Radar Sensing Approach based on MIMO-OFDM Technology
Liang Liu, Shuowen Zhang
Recently, integrating the communication and sensing functions into a common network has attracted a great amount of attention. This paper considers the advanced signal processing t…
Intelligent Reflecting Surface Aided Multi-User Communication: Capacity Region and Deployment Strategy
Shuowen Zhang, Rui Zhang
Intelligent reflecting surface (IRS) is a new promising technology that is able to reconfigure the wireless propagation channel via smart and passive signal reflection. In this pap…
Intelligent Reflecting Surface Aided Multicasting with Random Passive Beamforming
Qin Tao, Shuowen Zhang, Caijun Zhong +1
In this letter, we consider a multicast system where a single-antenna transmitter sends a common message to multiple single-antenna users, aided by an intelligent reflecting surfac…
Intelligent Reflecting Surface Aided Wireless Communications: A Tutorial
Qingqing Wu, Shuowen Zhang, Beixiong Zheng +2
Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal prorogation in wireless networks. By smartly tuning the signal reflection via a large nu…
Cooperative Double-IRS Aided Communication: Beamforming Design and Power Scaling
Yitao Han, Shuowen Zhang, Lingjie Duan +1
Intelligent reflecting surface (IRS) is a promising technology to support high performance wireless communication. By adaptively configuring the reflection amplitude and/or phase o…
Intelligent Reflecting Surface Aided Multiple Access: Capacity Region and Deployment Strategy
Shuowen Zhang, Rui Zhang
Intelligent reflecting surface (IRS) is a new promising technology that is able to manipulate the wireless propagation channel via smart and controllable signal reflection. In this…
IRS-Enhanced OFDMA: Joint Resource Allocation and Passive Beamforming Optimization
Yifei Yang, Shuowen Zhang, Rui Zhang
Intelligent reflecting surface (IRS) is an emerging technique to enhance the wireless communication spectral efficiency with low hardware and energy cost. In this letter, we consid…