3 papers
cs.IT2026
Stacked Intelligent Metasurfaces for Resolution-Constrained Near-Field Range Extension in 6G Systems
Yajun Zhao
Near-field electromagnetic focusing is central to 6G communication, sensing, and integrated sensing and communication (ISAC) systems. However, for a fixed aperture, the resolution-…
cs.IT2025
RIS-Enabled UAV Communications and Sensing: Opportunities, Challenges, and Key Technologies
Yajun Zhao, Mengnan Jian, Yifei Yuan
Unmanned Aerial Vehicles (UAVs) play a pivotal role in the emerging low-altitude economy. However, they face significant challenges in achieving reliable network coverage during tr…
eess.SP2024
Reconfigurable Intelligent Surface Constructing 6G Near-Field Networks
Yajun Zhao
Near-field propagation, particularly that enabled by reconfigurable intelligent surfaces (RIS), has emerged as a promising research topic in recent years. However, a comprehensive…