Pith Number

pith:5XMLCOA2

pith:2026:5XMLCOA2R5NB2OATC3QBUIP5FZ

not attested not anchored not stored refs resolved

A Novel CSI-RS Reporting Scheme for RIS Optimization in O-RAN-based NextG Networks

Ali Fuat Sahin, Ali Gorcin, Ertugrul Basar, Halim Yanikomeroglu, Ibrahim Hokelek, Sefa Kayraklik

A CSI-RS reporting scheme supplies complex channel data to enable RIS optimization inside O-RAN networks.

arxiv:2604.17938 v1 · 2026-04-20 · eess.SP

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\usepackage{pith}
\pithnumber{5XMLCOA2R5NB2OATC3QBUIP5FZ}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

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 framework establishing CCI extraction and CSI-RS reporting procedures is experimentally validated on a real-world testbed integrating an open-source O-RAN system with an RIS prototype operating in the n78 frequency band. Experimental results demonstrate notable improvements in received signal power for both near and far users.

C2weakest assumption

That the tailored Hadamard and OMP algorithms integrate cleanly into O-RAN without prohibitive overhead or compatibility issues, and that the single-band testbed results will generalize to other frequencies and deployments.

C3one line summary

A new CSI-RS reporting method for complex channel information enables RIS optimization in O-RAN systems, with experimental validation demonstrating improved received signal power.

References

17 extracted · 17 resolved · 0 Pith anchors

[1] Wireless communications through reconfigurable intelligent surfaces 2019

[2] Channel estimation for RIS assisted wire- less communications—part II: An improved solution based on double- structured sparsity 2021

[3] Channel estimation for RIS-empowered multi-user MISO wireless communications 2021

[4] Intelligent reflecting surface-enhanced OFDM: Channel estimation and reflection optimization 2020

[5] Scalable channel estimation and reflection optimization for reconfigurable intelligent surface-enhanced OFDM sys- tems 2022

Receipt and verification

First computed	2026-07-20T01:18:31.608125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edd8b1381a8f5a1d381316e01a21fd2e715320f9f11a4abe37f5a1d91af2a9fc

Aliases

arxiv: 2604.17938 · arxiv_version: 2604.17938v1 · doi: 10.48550/arxiv.2604.17938 · pith_short_12: 5XMLCOA2R5NB · pith_short_16: 5XMLCOA2R5NB2OAT · pith_short_8: 5XMLCOA2

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/5XMLCOA2R5NB2OATC3QBUIP5FZ \
  | 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: edd8b1381a8f5a1d381316e01a21fd2e715320f9f11a4abe37f5a1d91af2a9fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c55a7ce82b9ea50e7fa7992c25f07bc28d5029b9102b719d2c73d5a858b7d9e5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-04-20T08:18:47Z",
    "title_canon_sha256": "76bfe0f93d1bfab982a0a4b808c088fb4c548e1570bb2077340d500a9461679f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.17938",
    "kind": "arxiv",
    "version": 1
  }
}