912 citations · 10.1k across the 293 of their papers we have counts for
47 papers · 1 filter
Mobile Edge Generation: A New Era to 6G
Ruikang Zhong, Xidong Mu, Yimeng Zhang +2
A conception of mobile edge generation (MEG) is proposed, where generative artificial intelligence (GAI) models are distributed at edge servers (ESs) and user equipment (UE), enabl…
Dynamic MIMO Architecture Design for Near-Field Communications
Zheng Zhang, Yuanwei Liu, Zhaolin Wang +2
A novel dynamic hybrid beamforming architecture is proposed to achieve the spatial multiplexing-power consumption tradeoff for near-field multiple-input multiple-output (MIMO) netw…
Reconfigurable Intelligent Surfaces for 6G: Emerging Hardware Architectures, Applications, and Open Challenges
Ertugrul Basar, George C. Alexandropoulos, Yuanwei Liu +5
Reconfigurable intelligent surfaces (RISs) are rapidly gaining prominence in the realm of fifth generation (5G)-Advanced, and predominantly, sixth generation (6G) mobile networks,…
Dual-Functional Artificial Noise (DFAN) Aided Robust Covert Communications in Integrated Sensing and Communications
Runzhe Tang, Long Yang, Lv Lu +3
This paper investigates covert communications in an integrated sensing and communications system, where a dual-functional base station (called Alice) covertly transmits signals to…
Reconfigurable Intelligent Surface-Aided Near-field Communications for 6G: Opportunities and Challenges
Xidong Mu, Jiaqi Xu, Yuanwei Liu +1
Reconfigurable intelligent surface (RIS)-aided near-field communications is investigated. First, the necessity of investigating RIS-aided near-field communications and the advantag…
Near-Field Integrated Sensing, Positioning, and Communication: A Downlink and Uplink Framework
Haochen Li, Zhaolin Wang, Xidong Mu +2
A near-field integrated sensing, positioning, and communication (ISPAC) framework is proposed, where a base station (BS) simultaneously serves multiple communication users and carr…
Exploiting Active RIS in NOMA Networks with Hardware Impairments
Xinwei Yue, Meiqi Song, Chongjun Ouyang +3
Active reconfigurable intelligent surface (ARIS) is a promising way to compensate for multiplicative fading attenuation by amplifying and reflecting event signals to selected users…
Rethinking Integrated Sensing and Communication: When Near Field Meets Wideband
Zhaolin Wang, Xidong Mu, Yuanwei Liu
This article revisits integrated sensing and communication (ISAC) systems that operate in the near-field region of large antenna arrays while utilizing large bandwidths. The articl…
Near-Field Velocity Sensing and Predictive Beamforming
Zhaolin Wang, Xidong Mu, Yuanwei Liu
The novel concept of near-field velocity sensing is proposed. In contrast to far-field velocity sensing, near-field velocity sensing enables the simultaneous estimation of both rad…
A unified framework for STAR-RIS coefficients optimization
Hancheng Zhu, Yuanwei Liu, Yik Chung Wu +1
Simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surface (RIS), which serves users located on both sides of the surface, has recently emerged as a promi…
Resource Allocation for Near-Field Communications: Fundamentals, Tools, and Outlooks
Bokai Xu, Jiayi Zhang, Hongyang Du +5
Extremely large-scale multiple-input-multiple output (XL-MIMO) is a promising technology to achieve high spectral efficiency (SE) and energy efficiency (EE) in future wireless syst…
Modeling and Analysis of Near-Field ISAC
Boqun Zhao, Chongjun Ouyang, Yuanwei Liu +2
As the technical trends for the next-generation wireless network significantly extend the near-field region, a performance reevaluation of integrated sensing and communications (IS…
Near-field Integrated Sensing and Communication: Opportunities and Challenges
Jiayi Cong, Changsheng You, Jiapeng Li +7
With the extremely large-scale array XL-array deployed in future wireless systems, wireless communication and sensing are expected to operate in the radiative near-field region, wh…
RIS-aided Near-Field MIMO Communications: Codebook and Beam Training Design
Suyu Lv, Yuanwei Liu, Xiaodong Xu +2
Downlink reconfigurable intelligent surface (RIS)-assisted multi-input-multi-output (MIMO) systems are considered with far-field, near-field, and hybrid-far-near-field channels. Ac…
STARS for Integrated Sensing and Communications: Challenges, Solutions, and Future Directions
Zheng Zhang, Zhaolin Wang, Xidong Mu +2
This article discusses the employment of simultaneously transmitting and reflecting surface (STARS) for integrated sensing and communication (ISAC) networks. First, two fundamental…
TTD Configurations for Near-Field Beamforming: Parallel, Serial, or Hybrid?
Zhaolin Wang, Xidong Mu, Yuanwei Liu +1
True-time delayers (TTDs) are popular components for hybrid beamforming architectures to combat the spatial-wideband effect in wideband near-field communications. In this paper, a…
Signal Processing and Learning for Next Generation Multiple Access in 6G
Wei Chen, Yuanwei Liu, Hamid Jafarkhani +3
Wireless communication systems to date primarily rely on the orthogonality of resources to facilitate the design and implementation, from user access to data transmission. Emerging…
Physics-Based Trajectory Design for Cellular-Connected UAV in Rainy Environments Based on Deep Reinforcement Learning
Hao Qin, Zhaozhou Wu, Xingqi Zhang
Cellular-connected unmanned aerial vehicles (UAVs) have gained increasing attention due to their potential to enhance conventional UAV capabilities by leveraging existing cellular…
Successive Pose Estimation and Beam Tracking for mmWave Vehicular Communication Systems
Cen Liu, Guangxu Zhu, Fan Liu +2
The millimeter wave (mmWave) radar sensing-aided communications in vehicular mobile communication systems is investigated. To alleviate the beam training overhead under high mobili…
Near-Field Communications: A Degree-of-Freedom Perspective
Chongjun Ouyang, Yuanwei Liu, Xingqi Zhang +1
Multiple-antenna technologies are advancing towards large-scale aperture sizes and extremely high frequencies, leading to the emergence of near-field communications (NFC) in future…
Downlink and Uplink NOMA-ISAC with Signal Alignment
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +1
Integrated Sensing and Communications (ISAC) surpasses the conventional frequency-division sensing and communications (FDSAC) in terms of spectrum, energy, and hardware efficiency,…
Caching-at-STARS: the Next Generation Edge Caching
Zhaoming Hu, Ruikang Zhong, Chao Fang +1
A simultaneously transmitting and reflecting surface (STARS) enabled edge caching system is proposed for reducing backhaul traffic and ensuring the quality of service. A novel Cach…
Revealing the Impact of Beamforming in ISAC
Chongjun Ouyang, Yuanwei Liu, Xingqi Zhang
This letter proposes advanced beamforming design and analyzes its influence on the sensing and communications (S&C) performance for a multiple-antenna integrated S&C (ISAC) system…
Multi-Objective Optimisation of URLLC-Based Metaverse Services
Xinyu Gao, Wenqiang Yi, Yuanwei Liu +1
Metaverse aims for building a fully immersive virtual shared space, where the users are able to engage in various activities. To successfully deploy the service for each user, the…