inRAN: Interpretable Online Bayesian Learning for Network Automation in Open Radio Access Networks

Fuente: arXiv
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Main Authors: Zhao, Ming, Zhang, Yuru, Liu, Qiang, Kak, Ahan, Choi, Nakjung
Format: Preprint
Published: 2026
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author Zhao, Ming
Zhang, Yuru
Liu, Qiang
Kak, Ahan
Choi, Nakjung
author_facet Zhao, Ming
Zhang, Yuru
Liu, Qiang
Kak, Ahan
Choi, Nakjung
contents Emerging AI/ML techniques have been showing great potential in automating network control in open radio access networks (Open RAN). However, existing approaches heavily rely on blackbox policies parameterized by deep neural networks, which inherently lack interpretability, explainability, and transparency, and create substantial obstacles in practical network deployment. In this paper, we propose inRAN, a novel interpretable online Bayesian learning framework for network automation in Open RAN. The core idea is to integrate interpretable surrogate models and safe optimization solvers to continually optimize control actions, while adapting to non-stationary dynamics in real-world networks. We achieve the inRAN framework with three key components: 1) an interpretable surrogate model via ensembling Kolmogorov-Arnold Networks (KANs); 2) safe optimization solvers via integrating genetic search and trust-region descent method; 3) an online dynamics tracker via continual model learning and adaptive threshold offset. We implement inRAN in an end-to-end O-RAN-compliant network testbed, and conduct extensive over-the-air experiments with the focused use case of network slicing. The results show that, inRAN substantially outperforms state-of-the-art works, by guaranteeing the chance-based constraint with a 92.67% assurance ratio with comparative resource usage throughout the online network control, under unforeseeable time-evolving network dynamics.
format Preprint
id arxiv_https___arxiv_org_abs_2601_03219
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle inRAN: Interpretable Online Bayesian Learning for Network Automation in Open Radio Access Networks
Zhao, Ming
Zhang, Yuru
Liu, Qiang
Kak, Ahan
Choi, Nakjung
Networking and Internet Architecture
Emerging AI/ML techniques have been showing great potential in automating network control in open radio access networks (Open RAN). However, existing approaches heavily rely on blackbox policies parameterized by deep neural networks, which inherently lack interpretability, explainability, and transparency, and create substantial obstacles in practical network deployment. In this paper, we propose inRAN, a novel interpretable online Bayesian learning framework for network automation in Open RAN. The core idea is to integrate interpretable surrogate models and safe optimization solvers to continually optimize control actions, while adapting to non-stationary dynamics in real-world networks. We achieve the inRAN framework with three key components: 1) an interpretable surrogate model via ensembling Kolmogorov-Arnold Networks (KANs); 2) safe optimization solvers via integrating genetic search and trust-region descent method; 3) an online dynamics tracker via continual model learning and adaptive threshold offset. We implement inRAN in an end-to-end O-RAN-compliant network testbed, and conduct extensive over-the-air experiments with the focused use case of network slicing. The results show that, inRAN substantially outperforms state-of-the-art works, by guaranteeing the chance-based constraint with a 92.67% assurance ratio with comparative resource usage throughout the online network control, under unforeseeable time-evolving network dynamics.
title inRAN: Interpretable Online Bayesian Learning for Network Automation in Open Radio Access Networks
topic Networking and Internet Architecture
url https://arxiv.org/abs/2601.03219