{
  "abstract": "We consider the uplink of a fronthaul-constrained cell-free massive MIMO system with a single multi-antenna user equipment (UE) transmitting multiple spatial streams to distributed access points (APs). Due to heterogeneous channel conditions and limited fronthaul capacity, uniform-resolution quantization across APs and streams is highly inefficient. To address this, we propose a stream- and AP-adaptive resolution control framework that jointly optimizes the transmit power and per-AP per-stream quantization resolutions. By leveraging a distributed implementation of singular-value decomposition (SVD)-based processing, the data streams are decoupled at the APs, enabling flexible fronthaul compression across both spatial streams and APs. The resulting non-convex optimization problem is tackled using a weighted minimum mean-squared error (WMMSE)-based block coordinate descent algorithm with semi-closed-form updates.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.26150",
  "author_total": 2,
  "authors": [
    {
      "name": "Özlem Tuğfe Demir"
    },
    {
      "name": "Sinan Gezici"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4vtxt4gh6f28e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.26150",
  "fulltext_url": null,
  "id": "4vtxt4gh6f28e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.26150",
  "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",
      "eess.SP"
    ],
    [
      "arxiv",
      "math.IT"
    ],
    [
      "openalex",
      "2208|Advanced MIMO Systems Optimization"
    ]
  ],
  "openalex": "W7214097486",
  "pdf_url": "https://arxiv.org/pdf/2609.26150",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4vtxt4gh6f28e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:43Z",
      "native_id": "2609.26150",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.26150"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.IT",
      "subfield": "general"
    }
  ],
  "title": "Fronthaul-Efficient Cell-Free Massive MIMO via Stream-Adaptive Resolution Control",
  "title_text": "Fronthaul-Efficient Cell-Free Massive MIMO via Stream-Adaptive Resolution Control",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:43Z",
  "url": "https://research.draconitic.com/paper/4vtxt4gh6f28e",
  "venue": "arXiv",
  "versions": []
}