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We present a retrieval-augmented question answering framework for 5G/6G networks, where the Open Radio Access Network (O-RAN) has become central to disaggregated, virtualized, and AI-driven wireless systems. While O-RAN enables multi-vendor…

Networking and Internet Architecture · Computer Science 2026-01-07 Nathan Conger , Nathan Scollar , Kemal Davaslioglu , Yalin E. Sagduyu , Sastry Kompella

This tutorial seeks to outline the proposed Open Radio Access Network (O-RAN) deployment for Fifth generation (5G) wireless networks. O-RAN seeks to supplant hardware-specific Radio Access Network (RAN) components (e.g., the mobility…

Networking and Internet Architecture · Computer Science 2024-10-28 Paul H. Masur , Jeffrey H. Reed

The Open Radio Access Network (O-RAN) marks a significant shift in the mobile network industry. By transforming a traditionally vertically integrated architecture into an open, data-driven one, O-RAN promises to enhance operational…

Cryptography and Security · Computer Science 2025-04-23 Dang Kien Nguyen , Rim El Malki , Filippo Rebecchi

Network virtualization, software-defined infrastructure, and orchestration are pivotal elements in contemporary networks, yielding new vectors for optimization and novel capabilities. In line with these principles, O-RAN presents an avenue…

Networking and Internet Architecture · Computer Science 2024-01-17 Stefano Maxenti , Salvatore D'Oro , Leonardo Bonati , Michele Polese , Antonio Capone , Tommaso Melodia

The rapid advancement of 5G networks and the upcoming transition to 6G necessitate the use of the Open Radio Access Network (O-RAN) architecture to enable greater flexibility, interoperability, and innovation. This shift towards 6G and…

Networking and Internet Architecture · Computer Science 2024-05-31 Seyed Bagher Hashemi Natanzi , Bo Tang

Open Radio Access Network (RAN) architectures will enable interoperability, openness, and programmatic data-driven control in next generation cellular networks. However, developing scalable and efficient data-driven algorithms that can…

Networking and Internet Architecture · Computer Science 2022-02-22 Leonardo Bonati , Michele Polese , Salvatore D'Oro , Stefano Basagni , Tommaso Melodia

The Open Radio Access Network (O-RAN) architecture enables a flexible, vendor-neutral deployment of 5G networks by disaggregating base station components and supporting third-party xApps for near real-time RAN control. However, the…

Networking and Internet Architecture · Computer Science 2026-03-13 Pragya Sharma , Shihua Sun , Shachi Deshpande , Angelos Stavrou , Haining Wang

The integration of Open Radio Access Network (O-RAN) principles into 5G networks introduces a paradigm shift in how radio resources are managed and optimized. O-RAN's open architecture enables the deployment of intelligent applications…

Networking and Internet Architecture · Computer Science 2025-04-02 A. K. Subudhi , A. Piccioni , V. Gudepu , A. Marotta , F. Graziosi , R. M. Hegde , K. Kondepu

To enable an intelligent, programmable and multi-vendor radio access network (RAN) for 6G networks, considerable efforts have been made in standardization and development of open RAN (O-RAN). So far, however, the applicability of O-RAN in…

The next generation of cellular networks will be characterized by softwarized, open, and disaggregated architectures exposing analytics and control knobs to enable network intelligence. How to realize this vision, however, is largely an…

Networking and Internet Architecture · Computer Science 2022-01-19 Salvatore D'Oro , Leonardo Bonati , Michele Polese , Tommaso Melodia

Convergence of multiple access technologies is one of the key enablers in providing a diverse set of services to the Fifth Generation (5G) users. Though the 3rd Generation Partnership Project (3GPP) 5G standard defines a common core…

Networking and Internet Architecture · Computer Science 2020-10-16 Meghna Khaturia , Pranav Jha , Abhay Karandikar

The Open Radio Access Network (RAN) and its embodiment through the O-RAN Alliance specifications are poised to revolutionize the telecom ecosystem. O-RAN promotes virtualized RANs where disaggregated components are connected via open…

Networking and Internet Architecture · Computer Science 2022-08-03 Michele Polese , Leonardo Bonati , Salvatore D'Oro , Stefano Basagni , Tommaso Melodia

Openness and programmability in the O-RAN architecture enable closed-loop control of the Radio Access Network (RAN). Artificial Intelligence (AI)-driven xApps, in the near-real-time RAN Intelligent Controller (RIC), can learn from network…

Networking and Internet Architecture · Computer Science 2026-02-04 Angelo Feraudo , Stefano Maxenti , Andrea Lacava , Leonardo Bonati , Paolo Bellavista , Michele Polese , Tommaso Melodia

Open Radio Access Network (O-RAN), a novel architecture that separates the traditional radio access network (RAN) into multiple disaggregated components, leads a revolution in the telecommunication ecosystems. Compared to the traditional…

Networking and Internet Architecture · Computer Science 2023-11-07 Yi-Zih Chen , Terrance Yu-Hao Chen , Po-Jung Su , Chi-Ting Liu

New-generation wireless networks are designed to support a wide range of services with diverse key performance indicators (KPIs) requirements. A fundamental component of such networks, and a pivotal factor to the fulfillment of the target…

Networking and Internet Architecture · Computer Science 2021-09-24 Sharda Tripathi , Corrado Puligheddu , Carla Fabiana Chiasserini , Federico Mungari

Open Radio Access Network (RAN) is a key paradigm to attain unprecedented flexibility of the RAN via disaggregation and Artificial Intelligence (AI)-based applications called xApps. In dense areas with many active RAN nodes, compute…

Networking and Internet Architecture · Computer Science 2025-06-25 Antonio Calagna , Stefano Maxenti , Leonardo Bonati , Salvatore D'Oro , Tommaso Melodia , Carla Fabiana Chiasserini

Modern 5G/6G radio access networks are increasingly programmable through O-RAN, yet their operational complexity has grown with disaggregation, open interfaces, and fine-grained control parameters. While RAN-side analytics and telemetry…

Networking and Internet Architecture · Computer Science 2026-03-17 Tuan V. Ngo , Mao V. Ngo , Binbin Chen , Tony Q. S. Quek , Tejaswita Kumari , Maziar Nekovee

Open Radio Access Network (O-RAN) is transforming the telecommunications landscape by enabling flexible, intelligent, and multi-vendor networks. Central to its architecture are xApps hosted on the Near-Real-Time RAN Intelligent Controller…

Networking and Internet Architecture · Computer Science 2025-01-27 Anastasios Giannopoulos , Sotirios Spantideas , Levis George , Kalafatelis Alexandros , Panagiotis Trakadas

Building on the principles of openness and intelligence, there has been a concerted global effort from the operators towards enhancing the radio access network (RAN) architecture. The objective is to build an operator-defined RAN…

Signal Processing · Electrical Eng. & Systems 2020-05-19 Solmaz Niknam , Abhishek Roy , Harpreet S. Dhillon , Sukhdeep Singh , Rahul Banerji , Jeffery H. Reed , Navrati Saxena , Seungil Yoon

In this paper, the problem of opportunistic spectrum sharing for the next generation of wireless systems empowered by the cloud radio access network (C-RAN) is studied. More precisely, low-priority users employ cooperative spectrum sensing…

Signal Processing · Electrical Eng. & Systems 2019-07-17 Hossein Safi , A. M Montazeri , Javane Rostampoor , Saeedeh Parsaeefard