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The virtualization of radio access networks (RANs) is emerging as a key component of future wireless systems, as it brings agility to the RAN architecture and offers degrees of design freedom. In this paper, we investigate and characterize…

Networking and Internet Architecture · Computer Science 2022-01-04 Somreeta Pramanik , Adlen Ksentini , Carla Fabiana Chiasserini

Open Radio Access Network (O-RAN) is an emerging paradigm, whereby virtualized network infrastructure elements from different vendors communicate via open, standardized interfaces. A key element therein is the RAN Intelligent Controller…

Networking and Internet Architecture · Computer Science 2023-01-13 Jorge Martín-Pérez , Nuria Molner , Francesco Malandrino , Carlos Jesús Bernardos , Antonio de la Oliva , David Gomez-Barquero

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…

Networking and Internet Architecture · Computer Science 2026-01-07 Ming Zhao , Yuru Zhang , Qiang Liu , Ahan Kak , Nakjung Choi

As wireless networks grow to support more complex applications, the Open Radio Access Network (O-RAN) architecture, with its smart RAN Intelligent Controller (RIC) modules, becomes a crucial solution for real-time network data collection,…

Networking and Internet Architecture · Computer Science 2024-10-08 Fatemeh Lotfi , Fatemeh Afghah

The disaggregated, distributed and virtualised implementation of radio access networks allows for dynamic resource allocation. These attributes can be realised by virtue of the Open Radio Access Networks (O-RAN) architecture. In this…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Mohammed M. H. Qazzaz , Łukasz Kułacz , Adrian Kliks , Syed A. Zaidi , Marcin Dryjanski , Des McLernon

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

Cell-free massive multi-input multi-output (MIMO) promises uniform high performance across the network, but also brings a high energy cost due to joint transmission from distributed radio units (RUs) and centralized processing in the cloud.…

Information Theory · Computer Science 2026-02-16 Zilin Ge , Ozan Alp Topal , Irshad Ahmad Meer , Pei Xiao , Cicek Cavdar

Next-generation wireless networks require intelligent traffic prediction to enable autonomous resource management and handle diverse, dynamic service demands. The Open Radio Access Network (O-RAN) framework provides a promising foundation…

Signal Processing · Electrical Eng. & Systems 2025-10-02 Abdelaziz Salama , Mohammed M. H. Qazzaz , Zeinab Nezami , Maryam Hafeez , Syed Ali Raza Zaidi

Next-generation wireless systems, already widely deployed, are expected to become even more prevalent in the future, representing challenges in both environmental and economic terms. This paper focuses on improving the energy efficiency of…

Networking and Internet Architecture · Computer Science 2024-10-21 Matteo Bordin , Andrea Lacava , Michele Polese , Sai Satish , Manoj AnanthaSwamy Nittoor , Rajarajan Sivaraj , Francesca Cuomo , Tommaso Melodia

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 (Open RAN) paradigm, and its reference architecture proposed by the O-RAN Alliance, is paving the way toward open, interoperable, observable and truly intelligent cellular networks. Crucial to this evolution is…

Networking and Internet Architecture · Computer Science 2025-10-08 Raoul Raftopoulos , Salvatore D'Oro , Tommaso Melodia , Giovanni Schembra

O-RAN systems and their deployment in virtualized general-purpose computing platforms (O-Cloud) constitute a paradigm shift expected to bring unprecedented performance gains. However, these architectures raise new implementation challenges…

Networking and Internet Architecture · Computer Science 2024-02-20 Fatih Aslan , George Iosifidis , Jose A. Ayala-Romero , Andres Garcia-Saavedra , Xavier Costa-Perez

In the rapidly evolving landscape of 5G and beyond, cloud-native Open Radio Access Networks (O-RAN) present a paradigm shift towards intelligent, flexible, and sustainable network operations. This study addresses the intricate challenge of…

Signal Processing · Electrical Eng. & Systems 2024-07-17 Rana M. Sohaib , Syed Tariq Shah , Oluwakayode Onireti , Yusuf Sambo , M. A. Imran

Open Radio Access Network (O-RAN) architectures enable flexible, scalable, and cost-efficient mobile networks by disaggregating and virtualizing baseband functions. However, this flexibility introduces significant challenges for resource…

Networking and Internet Architecture · Computer Science 2025-09-16 Duc-Thinh Ngo , Kandaraj Piamrat , Ons Aouedi , Thomas Hassan , Philippe Raipin-Parvédy

The growing performance demands and higher deployment densities of next-generation wireless systems emphasize the importance of adopting strategies to manage the energy efficiency of mobile networks. In this demo, we showcase a framework…

Networking and Internet Architecture · Computer Science 2026-01-07 Matteo Bordin , Andrea Lacava , Michele Polese , Francesca Cuomo , Tommaso Melodia

Due to the huge surge in the traffic of IoT devices and applications, mobile networks require a new paradigm shift to handle such demand roll out. With the 5G economics, those networks should provide virtualized multi-vendor and intelligent…

Networking and Internet Architecture · Computer Science 2021-11-15 Ibrahim Tamim , Anas Saci , Manar Jammal , Abdallah Shami

The increasing complexity and dynamic nature of 5G open radio access networks (O-RAN) pose significant challenges to maintaining low latency, high throughput, and resource efficiency. While existing methods leverage machine learning for…

Machine Learning · Computer Science 2025-02-26 Raúl Parada , Ebrahim Abu-Helalah , Jordi Serra , Anton Aguilar , Paolo Dini

Recently, the concept of open radio access network (O-RAN) has been proposed, which aims to adopt intelligence and openness in the next generation radio access networks (RAN). It provides standardized interfaces and the ability to host…

Networking and Internet Architecture · Computer Science 2022-01-20 Han Zhang , Hao Zhou , Melike Erol-Kantarci

Network energy efficiency is a main pillar in the design and operation of wireless communication systems. In this paper, we investigate a dense radio access network (dense-RAN) capable of radiated power management at the base station (BS).…

Signal Processing · Electrical Eng. & Systems 2023-04-18 Yuchao Chang , Wen Chen , Jun Li , Jianpo Liu , Haoran Wei , Zhendong Wang , Naofal Al-Dhahir

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