{
  "abstract": "This paper investigates a non-orthogonal multiple-access (NOMA)-assisted multi-user wireless-fed pinching-antenna system (Wi-PASS). A multi-antenna base station (BS) simultaneously serves one direct user and wirelessly feeds a full-duplex amplify-and-forward relay equipped with a directional horn receiver. The relay injects the NOMA waveform into a dielectric waveguide, and one position-adjustable pinching antenna serves two additional users. Under maximum-gain zero-forcing transmission, ideal successive interference cancellation, and an additive residual self-interference model, we minimize the total consumed power by jointly optimizing the BS powers, relay amplification factor, NOMA power coefficients, decoding order, and pinching-antenna position. For a fixed position and decoding order, a variable transformation reduces the resource-allocation problem to a strictly convex scalar problem and yields a closed-form global solution. The position-dependent decoding order partitions the waveguide into finitely many intervals, and the derivative of the optimized power is governed by a quadratic polynomial on each interval. Hence, the globally optimal position is found by evaluating a small finite candidate set. Simulations at 28~GHz over 1000 random user topologies show that the proposed architecture consistently requires the lowest consumed power among direct-transmission, array-fed, no-PASS, and equal-time orthogonal multiple-access (OMA) benchmarks. At target signal-to-interference-plus-noise ratios of 20, 25, and 30~dB, it reduces the average power by 19.2%, 21.1%, and 21.7%, respectively, relative to equal-time OMA, while preserving its advantage as the BS-relay distance and residual SI increase.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.23698",
  "author_total": 6,
  "authors": [
    {
      "name": "Hui Yang"
    },
    {
      "name": "Peng Zhu"
    },
    {
      "name": "Ming Zeng"
    },
    {
      "name": "Ebrahim Bedeer"
    },
    {
      "name": "Saeid Pakravan"
    },
    {
      "name": "Yulei Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3w5txdqeyrqvq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.23698",
  "fulltext_url": null,
  "id": "3w5txdqeyrqvq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.23698",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cs.IT"
    ],
    [
      "arxiv",
      "math.IT"
    ],
    [
      "openalex",
      "2208|Advanced Wireless Communication Technologies"
    ]
  ],
  "openalex": "W7214053336",
  "pdf_url": "https://arxiv.org/pdf/2609.23698",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3w5txdqeyrqvq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:27Z",
      "native_id": "2609.23698",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.23698"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.IT",
      "subfield": "general"
    }
  ],
  "title": "NOMA-Assisted Multi-User Hybrid Wireless-Fed Pinching-Antenna Systems",
  "title_text": "NOMA-Assisted Multi-User Hybrid Wireless-Fed Pinching-Antenna Systems",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:27Z",
  "url": "https://research.draconitic.com/paper/3w5txdqeyrqvq",
  "venue": "arXiv",
  "versions": []
}