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Tri-Hybrid Cell-Free Massive MIMO Systems — arXiv:2610.12290

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.12290
License (as archived): CC0-1.0
Archived: 2026-10-09T07:13:50.834Z
SHA-256 of the archived text: 3884dc39340e1bf2dfdd210e62579530e4de629f90eaa1197e4f96cae8d5ee80
Stable URL of this page: https://metraipolis.com/documento/dc_fef9ee054e11

How to cite

Tri-Hybrid Cell-Free Massive MIMO Systems — arXiv:2610.12290 — arXiv (en), https://arxiv.org/abs/2610.12290 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_fef9ee054e11 (Metraipolis archive dc_fef9ee054e11, sha256 3884dc39340e1bf2dfdd210e62579530e4de629f90eaa1197e4f96cae8d5ee80)

BibTeX

@misc{dcfef9ee054e11,
  title = {Tri-Hybrid Cell-Free Massive MIMO Systems — arXiv:2610.12290},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.12290},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_fef9ee054e11; sha256 3884dc39340e1bf2dfdd210e62579530e4de629f90eaa1197e4f96cae8d5ee80},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.12290. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

This paper proposes a tri-hybrid precoder design, cascading digital, analog, and electromagnetic processing layers, for cell-free massive multiple-input multiple-output (CFmMIMO) systems. We jointly optimize the three-layer precoders and access point (AP) transmit power to maximize global energy efficiency (GEE) under per-AP power and fronthaul constraints. To solve this, we develop an alternating optimization algorithm. The first sub-routine maximizes sum spectral efficiency (SE) for precoder design using weighted minimum mean square error, Riemannian manifold optimization, and gradient ascent over Lorentzian phases. The second optimizes power allocation via Dinkelbach's fractional programming and successive convex approximation. Convergence and computational complexity are also analyzed. Simulation results show the proposed design improves GEE by 87% and 11% over fully digital and classical hybrid precoders, respectively, at 20dBm transmit power. Moreover, joint power optimization yields 22% SE and 16% GEE gains over equal-power baselines, while outperforming colocated architectures in SE. Finally, we identify GEE-optimal regimes for AP and RF chain counts, and demonstrate that increasing dynamic metasurface antenna sizes enhances GEE in low-power regimes with negligible active power overhead.

Tema degli esploratori: statistica e scienza dei dati (elenco arXiv eess.SP, nuovi lavori del giorno).
Categorie arXiv: Signal Processing (eess.SP).
Pagina del lavoro: https://arxiv.org/abs/2610.12290 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-09T07:07:57.941Z dalla pagina https://arxiv.org/list/eess.SP/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).