8 papers · 1 filter
Multi-User MIMO with Rotatable Antennas and IRS: Joint Antenna Boresight and IRS Orientation Design
Guoying Zhang, Qingqing Wu, Ziyuan Zheng +5
In this paper, we investigate an intelligent reflecting surface (IRS)-assisted multi-user system, where the base station (BS) employs rotatable antennas (RAs) and the IRS can adjus…
Joint Antenna Rotation and IRS Beamforming for Multi-User Uplink Communications
Guoying Zhang, Qingqing Wu, Ziyuan Zheng +4
Rotatable antenna (RA) enhances wireless coverage through directional gain steering, yet suffers from performance degradation under physical blockages. Intelligent reflecting surfa…
Wireless Communication with Cross-Linked Rotatable Antenna Array: Architecture Design and Rotation Optimization
Ailing Zheng, Qingqing Wu, Ziyuan Zheng +5
Rotatable antenna (RA) technology can harness additional spatial degrees of freedom by enabling the dynamic three-dimensional orientation control of each antenna. Unfortunately, th…
Reconfigurable Airspace: Synergizing Movable Antenna and Intelligent Surface for Low-Altitude ISAC Networks
Honghao Wang, Qingqing Wu, Yifan Jiang +7
Low-altitude unmanned aerial vehicle (UAV) networks are integral to future 6G integrated sensing and communication (ISAC) systems. However, their deployment is hindered by challeng…
Joint Beamforming and Position Optimization for IRS-Aided SWIPT with Movable Antennas
Yanze Zhu, Qingqing Wu, Xinrong Guan +5
Simultaneous wireless information and power transfer (SWIPT) has been envisioned as a promising technology to support ubiquitous connectivity and reliable sustainability in Interne…
A Flexible Design for Beam Squint Effect Suppression in IRS-Aided THz Communications
Yanze Zhu, Qingqing Wu, Wen Chen +2
In this paper, we study employing movable components on both base station (BS) and intelligent reflecting surface (IRS) in a wideband terahertz (THz) multiple-input-single-output (…
Suppressing Beam Squint Effect For Near-Field Wideband Communication Through Movable Antennas
Yanze Zhu, Qingqing Wu, Yang Liu +2
In this correspondence, we study deploying movable antenna (MA) array in a wideband multiple-input-single-output (MISO) communication system, where near-field (NF) channel model is…
Channel Estimation By Transmitting Pilots From Reconfigurable Intelligent Surface
Yanze Zhu, Yang Liu, Qingqing Wu +2
Reconfigurable intelligent surface (RIS) is a promising technology for future wireless communication systems. Channel estimation (CE) of RIS device is a critical but also challengi…