{"ID":2898059,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2507.03915","arxiv_id":"2507.03915","title":"Resource Allocation for Multi-waveguide Pinching Antenna-assisted Broadcast Networks","abstract":"In this paper, we investigate the resource allocation for multi-dielectric waveguide-assisted broadcast systems, where each waveguide employs multiple pinching antennas (PAs), aiming to maximize the minimum achievable rate among multiple users. To capture realistic propagation effects, we propose a novel generalized frequency-dependent power attenuation model for dielectric waveguides PA systems. We jointly optimize waveguide beamforming, PA power ratio allocation, and antenna positions via a block coordinate descent scheme that capitalizes on majorization minimization and penalty methods, circumventing the inherent non-convexity of the formulated optimization problem and obtaining a computationally efficient sub-optimal solution. Simulation results demonstrate that our proposed framework substantially outperforms both conventional antenna systems and single PA per waveguide configurations, clearly illustrating the intricate trade-offs between waveguide propagation loss, path loss, and resource allocation among multiple PAs.","short_abstract":"In this paper, we investigate the resource allocation for multi-dielectric waveguide-assisted broadcast systems, where each waveguide employs multiple pinching antennas (PAs), aiming to maximize the minimum achievable rate among multiple users. To capture realistic propagation effects, we propose a novel generalized fr...","url_abs":"https://arxiv.org/abs/2507.03915","url_pdf":"https://arxiv.org/pdf/2507.03915v2","authors":"[\"Ruotong Zhao\",\"Shaokang Hu\",\"Deepak Mishra\",\"Derrick Wing Kwan Ng\"]","published":"2025-07-05T06:15:12Z","proceeding":"cs.IT","tasks":"[\"cs.IT\",\"eess.SP\"]","methods":"[]","has_code":false}