{
  "annotation_id": "50233ac5-c405-40ef-8eb9-2b8c2af45124",
  "date_created": "2026-02-17T05:53:08.509000Z",
  "date_modified": "2026-02-17T05:53:08.509000Z",
  "file_hash": "de84fe0b40f288c6598d541c316fdb81a6b54844229a5039dba5c2236d2424c9",
  "private": false,
  "record": {
    "abstract": "This letter proposes a movable beyond-diagonal reconfigurable intelligent surfaces (MA-BD-RIS) design, combining inter-element connectivity and movability for channel enhancement. We study a MA-BD-RIS assisted multi-user multiple input single output system where beamforming, BD-RIS configuration, and elements positions are jointly optimized to maximize the sum-rate. An efficient algorithm is developed, incorporating closed-form beamforming, a low-complexity partially proximal alternating direction method of multipliers for BD-RIS design, and successive convex approximation for element placement. Simulations show that the high-movability structure yields superior performance in small-scale RIS and rich scattering scenarios, while the high-connectivity structure dominates in large-scale RIS and massive transmit array configurations.",
    "arxiv_id": "2601.06837",
    "authors": [
      "Shuyue Xu",
      "Matteo Nerini",
      "Bruno Clerckx"
    ],
    "categories": [
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Movable Beyond-Diagonal Reconfigurable Intelligent Surfaces: Moving, Interconnecting, or Both?",
    "url": "https://arxiv.org/abs/2601.06837",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "511fdad5-dde9-43bd-9535-9eaae539ae07",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}