7 papers
Physics-Informed Spatial-Temporal Transformer for Terahertz Near-Field Beam Tracking
Zhi Zeng, Chong Han, Emil Björnson
Terahertz (THz) ultra-massive multiple-input multiple-output (UM-MIMO) promises ultra-high throughput, while its highly directional beams demand rapid and accurate beam tracking dr…
Airy Beam Engineering in Near-field Communications: A Tractable Closed-Form Analysis in the Terahertz Band
Wenqi Zhao, Chong Han, Emil Björnson
Terahertz (THz) communication can offer terabit-per-second rates in future wireless systems, thanks to the ultra-wide bandwidths, but require large antenna arrays. As antenna apert…
DiffPace: Diffusion-based Plug-and-play Augmented Channel Estimation in mmWave and Terahertz Ultra-Massive MIMO Systems
Zhengdong Hu, Chong Han, Wolfgang Gerstacker +1
Millimeter-wave (mmWave) and Terahertz (THz)-band communications hold great promise in meeting the growing data-rate demands of next-generation wireless networks, offering abundant…
Terahertz Wireless Data Center: Gaussian Beam or Airy Beam?
Wenqi Zhao, Sergi Abadal, Guochao Song +2
Terahertz (THz) communication is emerging as a pivotal enabler for 6G and beyond wireless systems owing to its multi-GHz bandwidth. One of its novel applications is in wireless dat…
Cross Far- and Near-Field Beam Management Technologies in Millimeter-Wave and Terahertz MIMO Systems
Yuhang Chen, Heyin Shen, Chong Han
The evolution of wireless communication toward next-generation networks introduces unprecedented demands on data rates, latency, and connectivity. To meet these requirements, two k…
DNN based Two-stage Compensation Algorithm for THz Hybrid Beamforming with imperfect Hardware
Wenqi Zhao, Chong Han, Ho-Jin Song +1
Terahertz (THz) communication is envisioned as a key technology for 6G and beyond wireless systems owing to its multi-GHz bandwidth. To maintain the same aperture area and the same…