Resource Allocation for Multi-waveguide Pinching Antenna-assisted Broadcast Networks
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909900105318400 |
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| author | Zhao, Ruotong Hu, Shaokang Mishra, Deepak Ng, Derrick Wing Kwan |
| author_facet | Zhao, Ruotong Hu, Shaokang Mishra, Deepak Ng, Derrick Wing Kwan |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_03915 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Resource Allocation for Multi-waveguide Pinching Antenna-assisted Broadcast Networks Zhao, Ruotong Hu, Shaokang Mishra, Deepak Ng, Derrick Wing Kwan Information Theory Signal Processing 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. |
| title | Resource Allocation for Multi-waveguide Pinching Antenna-assisted Broadcast Networks |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2507.03915 |