22 citations · 27 across the 12 of their papers we have counts for
12 papers
Intelligent Reflecting Surface Deployment for Low-Altitude Coverage: Illumination Geometry, Directional Characteristics, and Optimization
Guoying Zhang, Qingqing Wu, Ailing Zheng +3
Terrestrial base stations (BSs) are typically configured with fixed downtilt to serve ground users, resulting in weak illumination of low-altitude airspace even under line-of-sight…
Sparse Rotatable Arrays (SRA): Unifying Array Aperture and Antenna Directivity for Wireless Communications
Ailing Zheng, Qingqing Wu, Xiyuan Liu +1
Sparse rotatable array (SRA) is a novel reconfigurable antenna architecture that jointly exploits sparse aperture configuration and antenna directivity to enhance spatial resolutio…
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 Transmit and Receive Antenna Orientation Design for Secure MIMO Communications
Ailing Zheng, Qingqing Wu, Xingxiang Peng +4
Physical layer security (PLS) is a promising paradigm for safeguarding 6G wireless networks by exploiting the inherent characteristics of wireless channels. However, the efficiency…
Joint Transceiver Orientation Optimization for Rotatable-Antenna MIMO Capacity Maximization
Zheng Ailing, Wu Qingqing, Peng Xingxiang +3
Conventional multiple-input multiple-output (MIMO) systems mainly rely on fixed antenna arrays, which limits their capability to adapt the effective channel matrix to the propagati…
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…
Multi-Functional RIS Integrated Sensing and Communications for 6G Networks
Dongsheng Han, Peng Wang, Wanli Ni +4
In this paper, we propose a novel multi-functional reconfigurable intelligent surface (MF-RIS) that supports signal reflection, refraction, amplification, and target sensing simult…
Channel Estimation and Beamforming Design for MF-RIS-Aided Communication Systems
Zaihao Pan, Wen Wang, Gaofeng Nie +2
In this letter, we study the beamforming design for channel estimation of multi-functional reconfigurable intelligent surface (MF-RIS)-aided multi-user communications that supports…
Energy-Efficient Robust Beamforming for Multi-Functional RIS-Aided Wireless Communication under Imperfect CSI
Ailing Zheng, Wanli Ni, Wen Wang +2
The robust beamforming design in multi-functional reconfigurable intelligent surface (MF-RIS) assisted wireless networks is investigated in this work, where the MF-RIS supports sig…
Two Birds With One Stone: Enhancing Communication and Sensing via Multi-Functional RIS
Wanli Ni, Wen Wang, Ailing Zheng +5
In this article, we propose new network architectures that integrate multi-functional reconfigurable intelligent surfaces (MF-RISs) into 6G networks to enhance both communication a…
From Single to Multi-Functional RIS: Architecture, Key Technologies, Challenges, and Applications
Wanli Ni, Ailing Zheng, Wen Wang +3
Although reconfigurable intelligent surfaces (RISs) have demonstrated the potential to boost network capacity and expand coverage by adjusting their electromagnetic properties, exi…
Enhancing NOMA Networks via Reconfigurable Multi-Functional Surface
Ailing Zheng, Wanli Ni, Wen Wang +1
By flexibly manipulating the radio propagation environment, reconfigurable intelligent surface (RIS) is a promising technique for future wireless communications. However, the singl…