{"paper":{"title":"Holographic Airy Beamforming: Curved Trajectory Optimization for Blockage-Resilient Terahertz Communications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Reconfigurable holographic surfaces enable Airy beams with parabolic trajectories to bypass blockages and boost received power by over 10 dB in terahertz links.","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Boya Di, Lingyang Song, Xinyuan Hu","submitted_at":"2026-05-15T15:22:43Z","abstract_excerpt":"Terahertz communication offers vast bandwidth for high-speed transmission in the 6G networks but faces severe blockage challenges in the near-field region due to large antenna arrays. To overcome the limitation that near-field focused beams are susceptible to obstacles, wavefront engineering is leveraged to generate an Airy beam that propagates along a parabolic trajectory to circumvent blockages. In this paper, we consider the reconfigurable holographic surface (RHS) as a potential solution for such precise wavefront engineering owing to its compact radiation element spacing being much smalle"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The RHS can leverage its adjustable effective aperture to improve the received power of the blocked user by over 10 dB compared to traditional phase-controlled arrays with analog beamforming.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The reconfigurable holographic surface can achieve the precise amplitude-only control required to generate a true Airy beam with the desired parabolic trajectory without significant phase errors or efficiency losses, as stated in the proposed holographic Airy beamforming 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