206 citations · 357 across the 24 of their papers we have counts for
25 papers
Movable Antenna-Enhanced Multiuser Communication: Optimal Discrete Antenna Positioning and Beamforming
Yifei Wu, Dongfang Xu, Derrick Wing Kwan Ng +2
Movable antennas (MAs) are a promising paradigm to enhance the spatial degrees of freedom of conventional multi-antenna systems by flexibly adapting the positions of the antenna el…
Integrated Sensing and Communication in Coordinated Cellular Networks
Dongfang Xu, Chang Liu, Shenghui Song +1
Integrated sensing and communication (ISAC) is a promising technique to provide sensing services in future wireless networks. Numerous existing works have adopted a monostatic rada…
Active IRS-Aided MIMO Systems: How Much Gain Can We Get?
Zeyan Zhuang, Xin Zhang, Dongfang Xu +1
Intelligent reflecting surfaces (IRSs) have emerged as a promising technology to improve the efficiency of wireless communication systems. However, passive IRSs suffer from the ``m…
Joint BS Selection, User Association, and Beamforming Design for Network Integrated Sensing and Communication
Yiming Xu, Dongfang Xu, Lei Xie +1
Different from conventional radar, the cellular network in the integrated sensing and communication (ISAC) system enables collaborative sensing by multiple sensing nodes, e.g., bas…
A Framework for Transmission Design for Active RIS-Aided Communication with Partial CSI
Gui Zhou, Cunhua Pan, Hong Ren +4
Active reconfigurable intelligent surfaces (RISs) have recently been proposed to compensate for the severe multiplicative fading effect of conventional passive RIS-aided systems. E…
Energy-Aware Resource Allocation and Trajectory Design for UAV-Enabled ISAC
Ata Khalili, Atefeh Rezaei, Dongfang Xu +1
In this paper, we investigate joint resource allocation and trajectory design for multi-user multi-target unmanned aerial vehicle (UAV)-enabled integrated sensing and communication…
Integrated Sensing and Communication in Distributed Antenna Networks
Dongfang Xu, Ata Khalili, Xianghao Yu +2
In this paper, we investigate the resource allocation design for integrated sensing and communication (ISAC) in distributed antenna networks (DANs). In particular, coordinated by a…
Robust and Secure Resource Allocation for ISAC Systems: A Novel Optimization Framework for Variable-Length Snapshots
Dongfang Xu, Xianghao Yu, Derrick Wing Kwan Ng +2
In this paper, we investigate the robust resource allocation design for secure communication in an integrated sensing and communication (ISAC) system. A multi-antenna dual-function…
Resource Allocation for Active IRS-Assisted Multiuser Communication Systems
Dongfang Xu, Xianghao Yu, Derrick Wing Kwan Ng +1
Intelligent reflecting surfaces (IRSs) are emerging as promising enablers for the next generation of wireless communication systems, because of their ability to customize favorable…
Optimal Resource Allocation Design for Large IRS-Assisted SWIPT Systems: A Scalable Optimization Framework
Dongfang Xu, Vahid Jamali, Xianghao Yu +2
In this paper, we study the optimal resource allocation algorithm design for large intelligent reflecting surface (IRS)-assisted simultaneous wireless information and power transfe…
Smart and Reconfigurable Wireless Communications: From IRS Modeling to Algorithm Design
Xianghao Yu, Vahid Jamali, Dongfang Xu +2
Intelligent reflecting surfaces (IRSs) have been introduced into wireless communications systems due to their great potential to smartly customize and reconfigure radio propagation…
IRS-Assisted Green Communication Systems: Provable Convergence and Robust Optimization
Xianghao Yu, Dongfang Xu, Derrick Wing Kwan Ng +1
Intelligent reflecting surfaces (IRSs) are regarded as a key enabler of green wireless communication, due to their capability of customizing favorable wireless propagation environm…
Resource Allocation for Large IRS-Assisted SWIPT Systems with Non-linear Energy Harvesting Model
Dongfang Xu, Xianghao Yu, Vahid Jamali +2
In this paper, we investigate resource allocation algorithm design for large intelligent reflecting surface (IRS)-assisted simultaneous wireless information and power transfer (SWI…
Power-Efficient Resource Allocation for Multiuser MISO Systems via Intelligent Reflecting Surfaces
Xianghao Yu, Dongfang Xu, Derrick Wing Kwan Ng +1
Intelligent reflecting surfaces (IRSs) are regarded as key enablers of next-generation wireless communications, due to their capability of customizing the wireless propagation envi…
Resource Allocation for IRS-assisted Full-Duplex Cognitive Radio Systems
Dongfang Xu, Xianghao Yu, Yan Sun +2
In this paper, we investigate the resource allocation design for intelligent reflecting surface (IRS)-assisted full-duplex (FD) cognitive radio systems. In particular, a secondary…
Resource Allocation for Intelligent Reflecting Surface-Assisted Cognitive Radio Networks
Dongfang Xu, Xianghao Yu, Robert Schober
In this paper, we investigate resource allocation algorithm design for intelligent reflecting surface (IRS)-assisted multiuser cognitive radio (CR) systems. In particular, an IRS i…
Optimal Beamforming for MISO Communications via Intelligent Reflecting Surfaces
Xianghao Yu, Dongfang Xu, Robert Schober
Wireless communications via intelligent reflecting surfaces (IRSs) has received considerable attention from both academia and industry. In particular, IRSs are able to create favor…
Robust and Secure Wireless Communications via Intelligent Reflecting Surfaces
Xianghao Yu, Dongfang Xu, Ying Sun +2
In this paper, intelligent reflecting surfaces (IRSs) are employed to enhance the physical layer security in a challenging radio environment. In particular, a multi-antenna access…
Resource Allocation for Secure IRS-assisted Multiuser MISO Systems
Dongfang Xu, Xianghao Yu, Yan Sun +2
In this paper, we study resource allocation design for secure communication in intelligent reflecting surface (IRS)-assisted multiuser multiple-input single-output (MISO) communica…
Multiuser MISO UAV Communications in Uncertain Environments with No-fly Zones: Robust Trajectory and Resource Allocation Design
Dongfang Xu, Yan Sun, Derrick Wing Kwan Ng +1
In this paper, we investigate robust resource allocation algorithm design for multiuser downlink multiple-input single-output (MISO) unmanned aerial vehicle (UAV) communication sys…
MISO Wireless Communication Systems via Intelligent Reflecting Surfaces
Xianghao Yu, Dongfang Xu, Robert Schober
Intelligent reflecting surfaces (IRSs) have received considerable attention from the wireless communications research community recently. In particular, as low-cost passive devices…
Enabling Secure Wireless Communications via Intelligent Reflecting Surfaces
Xianghao Yu, Dongfang Xu, Robert Schober
In this paper, we propose to utilize intelligent reflecting surfaces (IRSs) for enhancing the physical layer security of wireless communications systems. In particular, an IRS-assi…
Robust Resource Allocation for UAV Systems with UAV Jittering and User Location Uncertainty
Dongfang Xu, Yan Sun, Derrick Wing Kwan Ng +1
In this paper, we investigate resource allocation algorithm design for multiuser unmanned aerial vehicle (UAV) communication systems in the presence of UAV jittering and user locat…
Optimal 3D-Trajectory Design and Resource Allocation for Solar-Powered UAV Communication Systems
Yan Sun, Dongfang Xu, Derrick Wing Kwan Ng +2
In this paper, we investigate the resource allocation algorithm design for multicarrier solar-powered unmanned aerial vehicle (UAV) communication systems. In particular, the UAV is…