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eess.SP2026
Exploiting Beam Squint for Near-Field Wideband Beamforming in Multi-User OFDMA Systems
Lanqing Zhi, Peilan Wang, Jun Fang
The beam squint effect has traditionally been viewed as detrimental to near-field wideband beamforming due to the reduction of beamforming gain towards the desired direction. In th…
eess.SP2026
Near-Field Wideband Channel Estimation for Extremely Large-Scale RIS-Aided Communication Systems
Lanqing Zhi, Hongwei Wang, Lingxiang Li +1
This paper studies wideband channel estimation for OFDM systems assisted by extremely large RIS (XL-RIS). Due to the large aperture of XL-RISs, the user equipment may operate in th…