{
  "abstract": "We propose a coupling-aware tri-hybrid precoding architecture for simultaneous wireless information and power transfer (SWIPT) using reconfigurable parasitic antennas. By integrating multiport network theory and information theory, we develop a third precoding layer that explicitly accounts for mutual coupling and reactive energy storage within the antenna domain. To efficiently optimize this architecture, we propose a low-complexity tri-hybrid solution comprising coordinate descent (CD) for parasitic reactive load optimization, a singular value decomposition (SVD)-based analog precoder, and a protective partial zero-forcing (PPZF) digital precoder. Numerical results demonstrate that the transmit array introduces impedance mismatch that reduces the real power accepted by the antenna array. Moreover, the proposed tri-hybrid architecture significantly outperforms hybrid precoding by constructively exploiting the coupling effects, yielding substantial gains in spectral efficiency (SE) and sum non-linear harvested energy (NLHE) at a fraction of the hardware cost.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.13402",
  "author_total": 4,
  "authors": [
    {
      "name": "Thien Duc Hua"
    },
    {
      "name": "Mohammadali Mohammadi"
    },
    {
      "name": "Hien Quoc Ngo"
    },
    {
      "name": "Michail Matthaiou"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5ykdaxmp0khq5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.13402",
  "fulltext_url": null,
  "id": "5ykdaxmp0khq5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.13402",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cs.IT"
    ],
    [
      "arxiv",
      "eess.SP"
    ],
    [
      "arxiv",
      "math.IT"
    ],
    [
      "openalex",
      "2208|Energy Harvesting in Wireless Networks"
    ]
  ],
  "openalex": "W7221509512",
  "pdf_url": "https://arxiv.org/pdf/2610.13402",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5ykdaxmp0khq5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:40Z",
      "native_id": "2610.13402",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.13402"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.IT",
      "subfield": "general"
    }
  ],
  "title": "Tri-Hybrid SWIPT with Reconfigurable Parasitic Antennas",
  "title_text": "Tri-Hybrid SWIPT with Reconfigurable Parasitic Antennas",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:40Z",
  "url": "https://research.draconitic.com/paper/5ykdaxmp0khq5",
  "venue": "arXiv",
  "versions": []
}