Pith Number

pith:WZNHPLSN

pith:2026:WZNHPLSNBPMSQOYIN5Z35YYHWS

not attested not anchored not stored refs pending

Hybrid Multiport Receivers for Slow Fluid Antenna Multiple Access

F. Javier L\'opez-Mart\'inez, Jos\'e David Vega-S\'anchez, Jos\'e P. Gonz\'alez-Coma

A fluid-antenna hybrid multiport receiver delivers performance comparable to fully-digital schemes using only two RF chains.

arxiv:2605.06958 v2 · 2026-05-07 · cs.IT · eess.SP · math.IT

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\usepackage{pith}
\pithnumber{WZNHPLSNBPMSQOYIN5Z35YYHWS}

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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

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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

a FAHM implementation with only 2 RF chains showcases a performance comparable to a fully-digital conventional multiport scheme with a much larger number of RF chains. Additionally, the proposed receiver architecture attains over 60% reduction in computational burden when integrated with a novel efficient implementation of the state-of-the-art generalized-eigenvector port-selection method.

C2weakest assumption

The analog combining network introduces negligible performance loss and the stopping criterion for port selection works reliably under the slow FAMA channel conditions without requiring additional tuning parameters beyond those stated.

C3one line summary

A fluid-antenna hybrid multiport receiver achieves performance close to full-digital multiport schemes using only 2 RF chains and cuts computational load by over 60 percent in slow multiuser scenarios.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-25T02:01:22.423478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b65a77ae4d0bd9283b086f73bee307b4957fa737a7cdfeb8dfb6aef475d6cc82

Aliases

arxiv: 2605.06958 · arxiv_version: 2605.06958v2 · doi: 10.48550/arxiv.2605.06958 · pith_short_12: WZNHPLSNBPMS · pith_short_16: WZNHPLSNBPMSQOYI · pith_short_8: WZNHPLSN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WZNHPLSNBPMSQOYIN5Z35YYHWS \
  | 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: b65a77ae4d0bd9283b086f73bee307b4957fa737a7cdfeb8dfb6aef475d6cc82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7fd2f6e4044bd2cd60281e2faca5dafc2a491beae265624952164ac780bac0e",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-05-07T21:23:23Z",
    "title_canon_sha256": "fc30d56f063dfdbfdcdeb7806a8eb7d7ee4988bcd44b7d2e4c83e63b1255397d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.06958",
    "kind": "arxiv",
    "version": 2
  }
}