568 citations · 2.1k across the 50 of their papers we have counts for
15 papers · 1 filter
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…
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…
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…
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…
Terahertz Near-Field Communications and Sensing
Zhaolin Wang, Xidong Mu, Yuanwei Liu
This article focuses on the near-field effect in terahertz (THz) communications and sensing systems. By equipping with extremely large-scale antenna arrays (ELAAs), the near-field…
Beamfocusing Optimization for Near-Field Wideband Multi-User Communications
Zhaolin Wang, Xidong Mu, Yuanwei Liu
A near-field wideband communication system is investigated in which a base station (BS) employs an extra-large scale antenna array (ELAA) to serve multiple users in its near-field…
Simultaneous Wireless Information and Power Transfer in Near-Field Communications
Zheng Zhang, Yuanwei Liu, Zhaolin Wang +2
A near-field simultaneous wireless information and power transfer (SWIPT) network is investigated, where the hybrid beamforming architecture is employed at the base station (BS) fo…
Near-Field Communications: A Tutorial Review
Yuanwei Liu, Zhaolin Wang, Jiaqi Xu +3
Extremely large-scale antenna arrays, tremendously high frequencies, and new types of antennas are three clear trends in multi-antenna technology for supporting the sixth-generatio…
Simultaneously Transmitting And Reflecting (STAR) RIS for 6G: Fundamentals, Recent Advances, and Future Directions
Yuanwei Liu, Jiaqi Xu, Zhaolin Wang +3
Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) have been attracting significant attention in both academia and industry for their advant…
Near-Field Communications: What Will Be Different?
Yuanwei Liu, Jiaqi Xu, Zhaolin Wang +2
The design dilemma of "What will be different between near-field communications (NFC) and far-field communications (FFC)?" is addressed from four perspectives. 1) From the channel…
Physical Layer Security in Near-Field Communications
Zheng Zhang, Yuanwei Liu, Zhaolin Wang +2
A near-field secure transmission framework is proposed. Employing the hybrid beamforming architecture, a multi-antenna base station (BS) transmits confidential information to a mul…
Near-Field Integrated Sensing and Communications
Zhaolin Wang, Xidong Mu, Yuanwei Liu
A near-field integrated sensing and communications (ISAC) framework is proposed, which introduces an additional distance dimension for both sensing and communications compared to t…
STARS-ISAC: How Many Sensors Do We Need?
Zheng Zhang, Yuanwei Liu, Zhaolin Wang +1
A simultaneously transmitting and reflecting surface (STARS) enabled integrated sensing and communications (ISAC) framework is proposed, where a novel bi-directional sensing-STARS…