Pith Number

pith:ZJA3GKGX

pith:2026:ZJA3GKGXQ2WBOTUBWYSDBWFW2I

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GeoGS-CE: Learning Delay--Beam Channel Priors with 3D Gaussians for High-Mobility Scenarios

Chaozheng Wen, Chenghong Bian, Jiajia Guo, Jun Zhang, Yumeng Zhang

A 3D Gaussian model of scene geometry supplies a stable delay-beam prior that reconstructs full channel responses from sparse pilots in high-mobility settings.

arxiv:2605.16094 v1 · 2026-05-15 · cs.IT · cs.AI · math.IT

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Record completeness

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Claims

C1strongest claim

The geometric prior substantially improves CFR reconstruction over pilot-only and non-geometric baselines in simulations based on channels generated from a segment of the Guangshen high-speed railway.

C2weakest assumption

High-mobility environments such as high-speed railways exhibit scheduled trajectories, predictable velocities, and a limited number of dominant propagation paths that induce a delay-beam power spectrum more stable than the instantaneous CFR.

C3one line summary

GeoGS-CE models NLoS scattering with 3D Gaussians and uses differentiable rendering to generate delay-beam power spectrum priors that improve full CFR reconstruction via MMSE in sparse-pilot high-mobility settings.

References

24 extracted · 24 resolved · 0 Pith anchors

[1] T. Zhou, C. Tao, S. Salous, L. Liu, and Z. Tan, `` Channel sounding for high-speed railway communication systems ,'' IEEE Communications Magazine, vol. 53, no. 10, pp. 70--77, 2015 2015

[2] C. Wu, X. Yi, Y. Zhu, W. Wang, L. You, and X. Gao, `` Channel prediction in high-mobility massive MIMO: From spatio-temporal autoregression to deep learning ,'' IEEE Journal on Selected Areas in Commu 1915

[3] W. Khawaja, I. Guvenc, and D. Matolak, `` UWB channel sounding and modeling for UAV air-to-ground propagation channels ,'' in 2016 IEEE global communications conference (GLOBECOM). 1em plus 0.5em minu 2016

[4] Y. Wan and A. Liu, `` A two-stage 2D channel extrapolation scheme for TDD 5G NR systems ,'' IEEE Transactions on Wireless Communications, vol. 23, no. 8, pp. 8497--8511, 2024 2024

[5] Y. Zhang, H. Guo, and V. K. N. Lau, `` A Novel Pilot Scheme for Uplink Channel Estimation for Sub–array Structured ELAA in XL–MIMO systems ,'' IEEE Transactions on Signal Processing, pp. 1--16, 2026 2026

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Receipt and verification

First computed	2026-05-20T00:01:52.373966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca41b328d786ac174e81b62430d8b6d22947bf0d6ddcb1adaca77fcd888d6ac4

Aliases

arxiv: 2605.16094 · arxiv_version: 2605.16094v1 · doi: 10.48550/arxiv.2605.16094 · pith_short_12: ZJA3GKGXQ2WB · pith_short_16: ZJA3GKGXQ2WBOTUB · pith_short_8: ZJA3GKGX

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZJA3GKGXQ2WBOTUBWYSDBWFW2I \
  | 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: ca41b328d786ac174e81b62430d8b6d22947bf0d6ddcb1adaca77fcd888d6ac4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f2bb827942c3a517734b671b7a0bbc60d47833216e741ec84613a88b8902104",
    "cross_cats_sorted": [
      "cs.AI",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-05-15T15:49:42Z",
    "title_canon_sha256": "37dae089bd126c570f6178b5e0ea22b98225de06a53b214ff02728a2cd209a68"
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  "source": {
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    "kind": "arxiv",
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}