Pith Number

pith:GNCKOCY7

pith:2025:GNCKOCY7K2D2RAMF7VZLX7PNBI

not attested not anchored not stored refs pending

RIS-Empowered OTFS Modulation With Faster-than-Nyquist Signaling in High-Mobility Wireless Communications

Benjamin K. Ng, Chan-Tong Lam, Chaorong Zhang, Halim Yanikomeroglu, Hui Xu

RIS-OTFS-FTN modulation improves reliability and spectral efficiency in high-mobility wireless links by combining passive beamforming with delay-Doppler signaling and intentional symbol packing.

arxiv:2512.20332 v4 · 2025-12-23 · cs.IT · eess.SP · math.IT

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\usepackage{pith}
\pithnumber{GNCKOCY7K2D2RAMF7VZLX7PNBI}

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Record completeness

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3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

The proposed RIS-OTFS-FTN scheme demonstrates notable performance gains in both reliability and spectral efficiency, offering a viable solution for future high-mobility and spectrum-constrained wireless systems.

C2weakest assumption

The unified DD-domain input-output relationship accurately captures the joint effects of RIS passive beamforming, FTN-induced inter-symbol interference, and DD-domain channel characteristics under the standardized EVA model.

C3one line summary

A unified delay-Doppler model for RIS-assisted OTFS with intentional symbol packing is derived and shown to deliver measurable gains in frame error rate and spectral efficiency under standardized vehicular channels.

Receipt and verification

First computed	2026-05-20T01:06:07.525224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3344a70b1f5687a88185fd72bbfded0a122527a695ec49bf224e2bdc03d9a118

Aliases

arxiv: 2512.20332 · arxiv_version: 2512.20332v4 · doi: 10.48550/arxiv.2512.20332 · pith_short_12: GNCKOCY7K2D2 · pith_short_16: GNCKOCY7K2D2RAMF · pith_short_8: GNCKOCY7

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GNCKOCY7K2D2RAMF7VZLX7PNBI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3344a70b1f5687a88185fd72bbfded0a122527a695ec49bf224e2bdc03d9a118

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c9f1cac0db69281ffbc9168286755d4c8ebe1fdd29bb52341f8c0d7487f683f",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2025-12-23T13:07:14Z",
    "title_canon_sha256": "36296be10036e003f870b6f88f66514ceff106fe6010f7c837be1836160885c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.20332",
    "kind": "arxiv",
    "version": 4
  }
}