Literature Database Entry

buzcu2026modular-preprint

Berk Buzcu, Marcin Pakula, Gevher Yesevi Keskin, Laura Finarelli, Gianluca A. Rizzo, Engin Zeydan, Jorge Baranda, Aitor Alcazar-Fernandez, Javier Velazquez-Martinez, Luis M. Contreras, Gil Kedar, Efi Dvir and Paweł Kryszkiewicz, "Modular Multi-Domain Digital Twin Architecture: Sustainable Intent-Driven 6G Management," arXiv, cs.NI, 2606.13069, June 2026.

Abstract

Future 6G networks will operate across distributed and heterogeneous domain infrastructures, making conventional single-domain management insufficient for proactive, trustworthy automation. Network Digital Twins (NDTs) enable what-if analysis, AI-assisted optimization, and risk-free validation of control actions before deployment, yet monolithic end-to-end twins remain impractical due to scalability, fidelity, and cross-domain coordination challenges. Accordingly, this paper proposes a Digital Twin-enabled 6G architecture that exposes NDT capabilities as a specialized service domain within a multi-domain orchestration framework built on a state-of-the-art service-based 6G architecture. A DT Orchestrator interprets \textitpredictive and \textitprescriptive what-if queries and composes domain-specific DT modules and simulators on demand, while decision authority remains with the requesting entity. Furthermore, a generalized workflow covers telemetry synchronization, simulation-based decision support, and closed-loop execution. The framework is demonstrated through a green-networking use case that couples a system-level O-RAN cellular digital twin component with a two-stage solar-allocation simulator, evaluated over a 105-base-station deployment in Poznan using simulative datasets. Joint coverage and renewable optimization reduces daily grid consumption by 28.5\% with 32 solar panels at the diminishing-returns threshold, with 17 base stations identified as both coverage-active and high-priority solar candidates as evidence that cross-domain NDT coordination enables sustainable, intent-driven 6G network management.

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Berk Buzcu
Marcin Pakula
Gevher Yesevi Keskin
Laura Finarelli
Gianluca A. Rizzo
Engin Zeydan
Jorge Baranda
Aitor Alcazar-Fernandez
Javier Velazquez-Martinez
Luis M. Contreras
Gil Kedar
Efi Dvir
Paweł Kryszkiewicz

BibTeX reference

@techreport{buzcu2026modular-preprint,
    author = {Buzcu, Berk and Pakula, Marcin and Keskin, Gevher Yesevi and Finarelli, Laura and Rizzo, Gianluca A. and Zeydan, Engin and Baranda, Jorge and Alcazar-Fernandez, Aitor and Velazquez-Martinez, Javier and Contreras, Luis M. and Kedar, Gil and Dvir, Efi and Kryszkiewicz, Paweł},
    doi = {10.48550/arXiv.2606.13069},
    title = {{Modular Multi-Domain Digital Twin Architecture: Sustainable Intent-Driven 6G Management}},
    institution = {arXiv},
    month = {6},
    number = {2606.13069},
    type = {cs.NI},
    year = {2026},
   }
   
   

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Last modified: 2026-10-07