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The Open Radio Access Network (O-RAN) is a burgeoning market with projected growth in the upcoming years. RAN has the highest CAPEX impact on the network and, most importantly, consumes 73% of its total energy. That makes it an ideal target…

Machine Learning · Computer Science 2023-10-18 Ioannis Mavromatis , Stefano De Feo , Pietro Carnelli , Robert J. Piechocki , Aftab Khan

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…

For the energy-efficient deployment of cell-free massive MIMO functionality in a practical wireless network, the end-to-end (from radio site to the cloud) energy-aware operation is essential. In line with the cloudification and…

Signal Processing · Electrical Eng. & Systems 2024-01-30 Özlem Tuğfe Demir , Meysam Masoudi , Emil Björnson , Cicek Cavdar

Despite the rapid advancements in 5G technology, accurately assessing the energy consumption of its Radio Access Networks (RANs) remains a challenge due to the diverse range of applicable technologies and implementation solutions. Designing…

Networking and Internet Architecture · Computer Science 2025-03-13 Anderson L de Araujo , Luc Deneire , Guillaume Urvoy-Keller , André L F de Almeida

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

Energy consumption in mobile communication networks has become a significant challenge due to its direct impact on Capital Expenditure (CAPEX) and Operational Expenditure (OPEX). The introduction of Open RAN (O-RAN) enables…

Networking and Internet Architecture · Computer Science 2025-04-22 Rawlings Ntassah , Gian Michele Dell'Aera , Fabrizio Granelli

Open-radio access network (O-RAN) seeks to establish the principles of openness, programmability, automation, intelligence, and hardware-software disaggregation with interoperable and standard-compliant interfaces. It advocates for…

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

Open Radio Access Network (RAN) is a transformative paradigm that supports openness, interoperability, and intelligence, with the O-RAN architecture being the most recognized framework in academia and industry. In the context of Open RAN,…

Signal Processing · Electrical Eng. & Systems 2024-09-24 Qiao Wang , Swarna Chetty , Ahmed Al-Tahmeesschi , Xuanyu Liang , Yi Chu , Hamed Ahmadi

The next-generation radio access network (RAN), known as Open RAN, is poised to feature an AI-native interface for wireless cellular networks, including emerging satellite-terrestrial systems, making deep learning integral to its operation.…

Information Theory · Computer Science 2025-02-12 Siya Chen , Chee Wei Tan , Xiangping Zhai , H. Vincent Poor

The open radio access network (O-RAN) Alliance developed an architecture and specifications for open and disaggregated cellular networks including many elements that are being widely adopted and implemented in both commercial and research…

Networking and Internet Architecture · Computer Science 2025-06-02 Urooj Tariq , Rishu Raj , Dan Kilper

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

Energy consumption represents a major part of the operating expenses of mobile network operators. With the densification foreseen with 5G and beyond, energy optimization has become a problem of crucial importance. While energy optimization…

Networking and Internet Architecture · Computer Science 2023-09-12 Gabriele Gemmi , Maxime Elkael , Michele Polese , Leonardo Maccari , Hind Castel-Taleb , Tommaso Melodia

Network virtualization and cloudification in Open Radio Access Networks (O-RAN) enable joint orchestration of the processing and fronthaul resources, which are essential for realizing the energy-saving potential of cell-free massive MIMO…

Signal Processing · Electrical Eng. & Systems 2026-04-07 Ozan Alp Topal , Özlem Tuğfe Demir , Emil Björnson , Cicek Cavdar

The radio access network (RAN) part of the next-generation wireless networks will require efficient solutions for satisfying low latency and high-throughput services. The open RAN (O-RAN) is one of the candidates to achieve this goal, in…

Networking and Internet Architecture · Computer Science 2022-02-01 Turgay Pamuklu , Shahram Mollahasani , Melike Erol-Kantarci

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 evolution of Open Radio Access Networks (O-RAN) enables programmable and intelligent control of radio resources through disaggregated architectures and open interfaces. However, existing solutions typically rely on isolated control…

Networking and Internet Architecture · Computer Science 2026-03-24 Anastasios Giannopoulos , Sotirios Spantideas , Panagiotis Trakadas

Open Radio Access Network (RAN) architectures will enable interoperability, openness and programmable data-driven control in next generation cellular networks. However, developing and testing efficient solutions that generalize across…

Networking and Internet Architecture · Computer Science 2022-12-20 Leonardo Bonati , Michele Polese , Salvatore D'Oro , Stefano Basagni , Tommaso Melodia

This paper presents a detailed and flexible power consumption model for Radio Units (RUs) in O-RAN using the ns3-oran simulator. This is the first ns3-oran model supporting xApp control to perform the RU power modeling. In contrast to…

Networking and Internet Architecture · Computer Science 2025-09-16 Abdul Wadud , Nima Afraz

This paper investigates the integration of Open Radio Access Network (O-RAN) within non-terrestrial networks (NTN), and optimizing the dynamic functional split between Centralized Units (CU) and Distributed Units (DU) for enhanced energy…

Networking and Internet Architecture · Computer Science 2024-09-04 S. M. Mahdi Shahabi , Xiaonan Deng , Ahmad Qidan , Taisir Elgorashi , Jaafar Elmirghani