8 papers
Pattern Zooming: Near-Field Wideband Beam Training with Wavenumber-Domain Codebook
Caihao Weng, Ying Wang, Xufeng Guo +2
Near-field beam training is essential for harvesting the high-gain potential of extremely large-scale multiple input multiple output systems. To reduce training overhead, existing…
Harnessing Rydberg Atomic Receivers: From Quantum Physics to Wireless Communications
Yuanbin Chen, Xufeng Guo, Chau Yuen +5
The intrinsic integration of Rydberg atomic receivers into wireless communication systems is proposed, by harnessing the principles of quantum physics in wireless communications. M…
MIMO Precoding Exploiting Extra Degrees of Freedom (DoF) in the Wavenumber Domain
Yuanbin Chen, Xufeng Guo, Tianqi Mao +3
In this paper, we propose an emerging wavenumber-domain precoding scheme to break the limitations of rank-1 channels that merely supports single-stream transmission, enabling simul…
Wavenumber-Domain Near-Field Channel Estimation: Beyond the Fresnel Bound
Xufeng Guo, Yuanbin Chen, Ying Wang +2
In the near-field context, the Fresnel approximation is typically employed to mathematically represent solvable functions of spherical waves. However, these efforts may fail to tak…
Unified Far-Field and Near-Field in Holographic MIMO: A Wavenumber-Domain Perspective
Yuanbin Chen, Xufeng Guo, Gui Zhou +3
This article conceives a unified representation for near-field and far-field holographic multiple-input multiple-output (HMIMO) channels, addressing a practical design dilemma: "Wh…
Exploiting Structured Sparsity in Near Field: From the Perspective of Decomposition
Xufeng Guo, Yuanbin Chen, Ying Wang +1
The structured sparsity can be leveraged in traditional far-field channels, greatly facilitating efficient sparse channel recovery by compressing the complexity of overheads to the…