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The ongoing transformation of mobile networks from proprietary physical network boxes to virtualized functions and deployment models has led to more scalable and flexible network architectures capable of adapting to specific use cases. As…

Systems and Control · Electrical Eng. & Systems 2022-12-23 Tolga O. Atalay , Sudip Maitra , Dragoslav Stojadinovic , Angelos Stavrou , Haining Wang

The Open Radio Access Network (O-RAN) Alliance proposes an open architecture that disaggregates the RAN and supports executing custom control logic in near-real time from third-party applications, the xApps. Despite O-RAN's efforts, the…

Networking and Internet Architecture · Computer Science 2025-02-06 Joao F. Santos , Alexandre Huff , Daniel Campos , Kleber V. Cardoso , Cristiano B. Both , Luiz A. DaSilva

5G and beyond mobile networks will support heterogeneous use cases at an unprecedented scale, thus demanding automated control and optimization of network functionalities customized to the needs of individual users. Such fine-grained…

Networking and Internet Architecture · Computer Science 2022-10-18 Andrea Lacava , Michele Polese , Rajarajan Sivaraj , Rahul Soundrarajan , Bhawani Shanker Bhati , Tarunjeet Singh , Tommaso Zugno , Francesca Cuomo , Tommaso Melodia

Open Radio Access Networks (O-RAN) are emerging as a disruptive technology, revolutionising traditional mobile network architecture and deployments in the current 5G and the upcoming 6G era. Disaggregation of network architecture, inherent…

Cryptography and Security · Computer Science 2024-06-19 Thusitha Dayaratne , Viet Vo , Shangqi Lai , Sharif Abuadbba , Blake Haydon , Hajime Suzuki , Xingliang Yuan , Carsten Rudolph

The proliferation of 5G technology presents an unprecedented challenge in managing the energy consumption of densely deployed network infrastructures, particularly Base Stations (BSs), which account for the majority of power usage in mobile…

Systems and Control · Electrical Eng. & Systems 2024-05-17 Xuanyu Liang , Ahmed Al-Tahmeesschi , Qiao Wang , Swarna Chetty , Chenrui Sun , Hamed Ahmadi

Open Radio Access Network (O-RAN) has introduced an emerging RAN architecture that enables openness, intelligence, and automated control. The RAN Intelligent Controller (RIC) provides the platform to design and deploy RAN controllers. xApps…

Networking and Internet Architecture · Computer Science 2022-10-11 Mohammadreza Kouchaki , Vuk Marojevic

Open Radio Access Networks (RAN) offer diverse economic opportunities. A transition to a flexible, modular approach within the disaggregated RAN framework is crucial, involving careful planning of RAN architecture and the deployment of…

Networking and Internet Architecture · Computer Science 2023-11-09 Marcin Hoffmann , Salim Janji , Adam Samorzewski , Lukasz Kulacz , Cezary Adamczyk , Marcin Dryjański , Pawel Kryszkiewicz , Adrian Kliks , Hanna Bogucka

The Open Radio Access Network (O-RAN) architecture aims to support a plethora of network services, such as beam management and network slicing, through the use of third-party applications called xApps. To efficiently provide network…

Networking and Internet Architecture · Computer Science 2024-05-31 Federico Mungari , Corrado Puligheddu , Andres Garcia-Saavedra , Carla Fabiana Chiasserini

The open radio access network (O-RAN) offers new degrees of freedom for building and operating advanced cellular networks. Emphasizing on RAN disaggregation, open interfaces, multi-vendor support, and RAN intelligent controllers (RICs),…

Cryptography and Security · Computer Science 2024-03-08 Aly S. Abdalla , Joshua Moore , Nisha Adhikari , Vuk Marojevic

Traditional RAN systems are closed and monolithic, stifling innovation. The openness and programmability enabled by Open Radio Access Network (O-RAN) are envisioned to revolutionize cellular networks with control-plane applications--xApps.…

Networking and Internet Architecture · Computer Science 2026-03-20 Xin Li , Shiming Yu , Leming Shen , Jianing Zhang , Yuanqing Zheng , Yaxiong Xie

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

The traditional black-box and monolithic approach to Radio Access Networks (RANs) has heavily limited flexibility and innovation. The Open RAN paradigm, and the architecture proposed by the O-RAN ALLIANCE, aim to address these limitations…

Networking and Internet Architecture · Computer Science 2025-08-19 Nicolo Longhi , Salvatore D'Oro , Leonardo Bonati , Michele Polese , Roberto Verdone , Tommaso Melodia

Open RAN (O-RAN) defines an emerging cellular radio access network (RAN) architecture for future 6G wireless networks, emphasizing openness and intelligence which are considered the foundations of future 6G wireless networks. While the…

Networking and Internet Architecture · Computer Science 2022-05-27 Pratheek S. Upadhyaya , Aly S. Abdalla , Vuk Marojevic , Jeffrey H. Reed , Vijay K. Shah

The highly heterogeneous ecosystem of Next Generation (NextG) wireless communication systems calls for novel networking paradigms where functionalities and operations can be dynamically and optimally reconfigured in real time to adapt to…

Networking and Internet Architecture · Computer Science 2023-09-12 Maria Tsampazi , Salvatore D'Oro , Michele Polese , Leonardo Bonati , Gwenael Poitau , Michael Healy , Tommaso Melodia

Open Radio Access Network (O-RAN) along with artificial intelligence, machine learning, cloud and edge networking, and virtualization are important enablers for designing flexible and software-driven programmable wireless networks. In…

Signal Processing · Electrical Eng. & Systems 2025-12-01 Ali Fuat Sahin , Onur Salan , Ibrahim Hokelek , Ali Gorcin

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

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

The Open Radio Access Network (Open RAN) aims to enable disaggregated, virtualized, programmable, and data-driven intelligent network with open interfaces to support various real-time and non-real-time applications for different classes of…

RAN Intelligent Controllers (RICs) are programmable platforms that enable data-driven closed-loop control in the O-RAN architecture. They collect telemetry and data from the RAN, process it in custom applications, and enforce control or new…

Networking and Internet Architecture · Computer Science 2024-11-13 Angelo Feraudo , Stefano Maxenti , Andrea Lacava , Paolo Bellavista , Michele Polese , Tommaso Melodia

The Open Radio Access Network (Open RAN)-which is being standardized, among others, by the O-RAN Alliance-is bringing a radical transformation to the cellular ecosystem through the notions of disaggregation and RAN Intelligent Controllers…

Networking and Internet Architecture · Computer Science 2022-08-22 Salvatore D'Oro , Michele Polese , Leonardo Bonati , Hai Cheng , Tommaso Melodia
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