{
  "abstract": "The deployment of unmanned aerial vehicle (UAV) systems relies on high-performance yet lightweight wireless links between UAVs and ground stations (GSs). This paper presents a geometry-aware multi-UAV in-band full-duplex (MU-IBFD) communication system that uses high-gain directional antennas and separated uplink/downlink channels to convert self-interference into controllable co-channel interference (CCI) between UAVs, thereby avoiding energy-intensive self-interference cancelers on UAVs. We also derive a geometry-aware CCI model and define a reliable operating region (ROR) in the 3D airspace, within which the SINR requirement is satisfied. A prototype consisting of two UAVs and a GS is developed, and field trials are conducted. The measured CCI as a function of UAV positions agrees well with the theoretically predicted non-ROR region, and the downlink capacity significantly exceeds that of a conventional time-division duplex (TDD) with omni-directional scheme and higher transmit power and approaches that of ideal IBFD in most of the airspace. A proof-of-concept 4K/60p video transmission further demonstrates the practical potential of the proposed MU-IBFD system.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.33369",
  "author_total": 5,
  "authors": [
    {
      "name": "Tao Yu"
    },
    {
      "name": "Kiyomichi Araki"
    },
    {
      "name": "Tomohiro Mogi"
    },
    {
      "name": "Yasushi Hada"
    },
    {
      "name": "Kei Sakaguchi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4291z1bmavbqw.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.33369",
  "fulltext_url": null,
  "id": "4291z1bmavbqw",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.33369",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.33369",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4291z1bmavbqw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:17Z",
      "native_id": "2609.33369",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.33369"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.IT",
      "subfield": "general"
    }
  ],
  "title": "Geometry-Aware Multi-UAV Full-Duplex Communication: System Design and Experiment",
  "title_text": "Geometry-Aware Multi-UAV Full-Duplex Communication: System Design and Experiment",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:17Z",
  "url": "https://research.draconitic.com/paper/4291z1bmavbqw",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1109/tvt.2026.3737383",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}