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The O-RAN Alliance promotes the integration of intelligent autonomous agents to control the Radio Access Network (RAN). This improves flexibility, performance, and observability in the RAN, but introduces new challenges, such as the…

This paper investigates the emerging challenges of conflict detection and mitigation in Open Radio Access Network (O-RAN). Conflicts between xApps can arise that affect network performance and stability due to the disaggregated nature of…

Networking and Internet Architecture · Computer Science 2025-02-28 Abdul Wadud , Fatemeh Golpayegani , Nima Afraz

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

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

The steady evolution of the Open RAN concept sheds light on xApps and their potential use cases in O-RANcompliant deployments. There are several areas where xApps can be used that are being widely investigated, but the issue of mitigating…

Networking and Internet Architecture · Computer Science 2023-05-15 Cezary Adamczyk , Adrian Kliks

Artificial Intelligence (AI)-native mobile networks represent a fundamental step toward 6G, where learning, inference, and decision making are embedded into the Radio Access Network (RAN) itself. In such networks, multiple AI agents…

Networking and Internet Architecture · Computer Science 2026-03-04 Joao F. Santos , Arshia Zolghadr , Scott Kuzdeba , Jacek Kibiłda

The Open Radio Access Network (RAN) is a networking paradigm that builds on top of cloud-based, multi-vendor, open and intelligent architectures to shape the next generation of cellular networks for 5G and beyond. While this new paradigm…

Cryptography and Security · Computer Science 2024-07-26 Joshua Groen , Salvatore DOro , Utku Demir , Leonardo Bonati , Michele Polese , Tommaso Melodia , Kaushik Chowdhury

Open Radio Access Networks (O-RAN) are transforming telecommunications by shifting from centralized to distributed architectures, promoting flexibility, interoperability, and innovation through open interfaces and multi-vendor environments.…

Cryptography and Security · Computer Science 2025-03-12 Zaineh Abughazzah , Emna Baccour , Ahmed Refaey , Amr Mohamed , Mounir Hamdi

The open radio access network (O-RAN) describes an industry-driven open architecture and interfaces for building next generation RANs with artificial intelligence (AI) controllers. We circulated a survey among researchers, developers, and…

Networking and Internet Architecture · Computer Science 2022-03-29 Aly S. Abdalla , Pratheek S. Upadhyaya , Vijay K. Shah , Vuk Marojevic

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

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

The Open Radio Access Network (O-RAN) architecture enables the deployment of third-party applications on the RAN Intelligent Controllers (RICs). However, the operation of third-party applications in the Near Real-Time RIC (Near-RT RIC),…

Networking and Internet Architecture · Computer Science 2025-02-04 Arshia Zolghadr , Joao F. Santos , Luiz A. DaSilva , Jacek Kibiłda

Conflict Mitigation (CM) in Open Radio Access Network (O-RAN) is a topic that is gaining importance as commercial O-RAN deployments become more complex. Although research on CM is already covered in terms of simulated network scenarios, it…

Networking and Internet Architecture · Computer Science 2025-05-19 Abida Sultana , Cezary Adamczyk , Mayukh Roy Chowdhury , Adrian Kliks , Aloizio Da Silva

The O-RAN ALLIANCE is defining architectures, interfaces, operations, and security requirements for cellular networks based on Open Radio Access Network (RAN) principles. In this context, O-RAN introduced the RAN Intelligent Controllers…

Networking and Internet Architecture · Computer Science 2025-10-21 Pietro Brach del Prever , Salvatore D'Oro , Leonardo Bonati , Michele Polese , Maria Tsampazi , Heiko Lehmann , 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 advent of Open Radio Access Network (RAN) has revolutionized the field of RAN by introducing elements of native support of intelligence and openness into the next generation of mobile network infrastructure. Open RAN paves the way for…

Networking and Internet Architecture · Computer Science 2025-01-13 Abdul Wadud , Fatemeh Golpayegani , Nima Afraz

Open Radio Access Network (O-RAN) is a major advancement in the telecommunications field, providing standardized interfaces that promote interoperability between different vendors' technologies, thereby enhancing network flexibility and…

Cryptography and Security · Computer Science 2026-03-24 Lujia Liang , Lei Zhang

The emergence of 6G technology represents a significant advancement in wireless communications, providing unprecedented speed, extremely low latency, and pioneering applications. In light of this development, an important question arises:…

Networking and Internet Architecture · Computer Science 2024-11-18 Sneihil Gopal , Aziz Kord , Richard A. Rouil

Open RAN (O-RAN) fosters multi-vendor interoperability and data-driven control but simultaneously introduces the challenge of coordinating pre-trained xApps that may produce conflicting actions. Although O-RAN specifications mandate offline…

Signal Processing · Electrical Eng. & Systems 2025-08-15 Idris Cinemre , Toktam Mahmoodi , Amirmohammad Farzaneh

Open Radio Access Network (RAN) was designed with native Artificial Intelligence (AI) as a core pillar, enabling AI- driven xApps and rApps to dynamically optimize network performance. However, the independent ICP adjustments made by these…

Networking and Internet Architecture · Computer Science 2026-02-24 Abdul Wadud , Nima Afraz , Fatemeh Golpayegani
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