{
  "abstract": "We propose a posterior-mass rescue (PMR)-aided shifted-pruning SCL-flip decoder for CRC-aided polar codes. After CRC-aided SCL (CA-SCL) and differential-metric shifted-pruning recovery fail to find a CRC-valid candidate, PMR locally continues discarded prefixes stored during the initial CA-SCL pass, ranked by estimated posterior mass, without increasing the shifted-pruning retry budget. Simulation results for a (128, 64) code with the Reed-Muller (RM) rate profile and a (256, 128) code with the polarization-weight (PW) rate profile, both using an 11-bit CRC, show lower observed FER than SCLF-Diff (T = 15) and the considered literature baselines under the evaluated recovery budgets, with observed FER close to that of SCLF-Diff (T = 20). At the reported moderate and high SNRs, the average reconstruction-aware path-step count is within a few percent of that of SCLF-Diff (T = 20), while at 2.0 dB it is 9.4% and 4.3% higher for the two codes, respectively. The proposed decoder also has a larger worst-case path-step bound.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.25644",
  "author_total": 4,
  "authors": [
    {
      "name": "Niloufar Hosseinzadeh"
    },
    {
      "name": "Mohammad Morsali"
    },
    {
      "name": "Mohsen Moradi"
    },
    {
      "name": "Hessam Mahdavifar"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/45j3xq9ysh4qx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.25644",
  "fulltext_url": null,
  "id": "45j3xq9ysh4qx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.25644",
  "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",
      "1705|Error Correcting Code Techniques"
    ]
  ],
  "openalex": "W7223037729",
  "pdf_url": "https://arxiv.org/pdf/2610.25644",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/45j3xq9ysh4qx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:57Z",
      "native_id": "2610.25644",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.25644"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.IT",
      "subfield": "general"
    }
  ],
  "title": "PMR-Aided Shifted-Pruning SCL-Flip Decoding for CRC-Aided Polar Codes",
  "title_text": "PMR-Aided Shifted-Pruning SCL-Flip Decoding for CRC-Aided Polar Codes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:44Z",
  "url": "https://research.draconitic.com/paper/45j3xq9ysh4qx",
  "venue": "arXiv",
  "versions": []
}