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The advent of 6G technology demands flexible, scalable wireless architectures to support ultra-low latency, high connectivity, and high device density. The Open Radio Access Network (O-RAN) framework, with its open interfaces and…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Chenrui Sun , Swarna Bindu Chetty , Gianluca Fontanesi , Jie Zhang , Amirhossein Mohajerzadeh , David Grace , Hamed Ahmadi

The recent adaption of virtualization technologies in the next generation mobile network enables 5G base station to be segregated into a Radio Unit (RU), a Distributed Unit (DU), and a Central Unit (CU) to support Cloud based Radio Access…

Networking and Internet Architecture · Computer Science 2022-05-18 Himank Gupta , Antony Franklin A , Mayank Kumar , Bheemarjuna Reddy Tamma

In past years, non-terrestrial networks (NTNs) have emerged as a viable solution for providing ubiquitous connectivity for future wireless networks due to their ability to reach large geographical areas. However, the efficient integration…

Networking and Internet Architecture · Computer Science 2023-10-04 Henri Alam , Antonio De Domenico , David López-Pérez , Florian Kaltenberger

Flexible functional split in Cloud Radio Access Network (CRAN) greatly overcomes fronthaul capacity and latency challenges. In such architecture, part of the baseband processing is done locally and the remaining is done remotely in the…

Networking and Internet Architecture · Computer Science 2018-05-31 Dagnachew A. Temesgene , Nicola Piovesan , Marco Miozzo , Paolo Dini

In virtualized radio access network (vRAN), the base station (BS) functions are decomposed into virtualized components that can be hosted at the centralized unit or distributed units through functional splits. Such flexibility has many…

Networking and Internet Architecture · Computer Science 2022-06-06 Fahri Wisnu Murti , Samad Ali , Matti Latva-aho

Open Radio Access Network (O RAN) disaggregates conventional RAN into interoperable components, enabling flexible resource allocation, energy savings, and agile architectural design. In legacy deployments, the binding between logical…

Networking and Internet Architecture · Computer Science 2025-12-24 Sebastian Racedo , Brigitte Jaumard , Oscar Delgado , Meysam Masoudi

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

To address an ever-increasing demand for ubiquitous high-speed connectivity, mobile network deployments are becoming increasingly dense. However, this densification has also led to a surge in overall energy consumption, making the process…

Networking and Internet Architecture · Computer Science 2025-03-04 Henri Alam , Antonio de Domenico , David López-Pérez , Florian Kaltenberger

Spectrum sharing and dynamic spectrum reuse are becoming increasingly critical in modern wireless networks to address spectrum scarcity. However, these techniques inevitably increase Cross-Technology Interference (CTI). In this context, the…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Dieter Verbruggen , Hazem Sallouha , Sofie Pollin

This paper addresses the challenge of optimizing handover (HO) performance in non-terrestrial networks (NTNs) to enhance user equipment (UE) effective service time, defined as the active service time excluding HO delays and radio link…

Networking and Internet Architecture · Computer Science 2026-03-06 Siva Satya Sri Ganesh Seeram , Luca Feltrin , Mustafa Ozger , Shuai Zhang , Cicek Cavdar

This paper proposes a novel split learning architecture designed to exploit the cyclical movement of Low Earth Orbit (LEO) satellites in non-terrestrial networks (NTNs). Although existing research focuses on offloading tasks to the NTN…

Networking and Internet Architecture · Computer Science 2025-11-05 Marc Martinez-Gost , Ana Pérez-Neira

In this paper, we propose the concept of AIO-RAN-NTN, a unified all-in-one Radio Access Network (RAN) for Non-Terrestrial Networks (NTNs), built on an open architecture that leverages open interfaces and artificial intelligence (AI)-based…

Signal Processing · Electrical Eng. & Systems 2025-11-18 Tri Nhu Do

The rapid evolution of Industry 4.0 has led to the emergence of smart factories, where multirobot system autonomously operates to enhance productivity, reduce operational costs, and improve system adaptability. However, maintaining reliable…

Networking and Internet Architecture · Computer Science 2025-06-03 Faisal Ahmed , Myungjin Lee , Shao-Yu Lien , Suresh Subramaniam , Motoharu Matsuura , Hiroshi Hasegawa , Shih-Chun Lin

Virtualized Radio Access Networks (vRANs) are fully configurable and can be implemented at a low cost over commodity platforms to enable network management flexibility. In this paper, a novel vRAN reconfiguration problem is formulated to…

Networking and Internet Architecture · Computer Science 2023-07-07 Fahri Wisnu Murti , Samad Ali , George Iosifidis , Matti Latva-aho

The transition to disaggregated and interoperable Open Radio Access Network (RAN) architectures and the introduction of RAN Intelligent Controllers (RICs) in O-RAN creates new resource optimization opportunities and fine-grained tuning and…

Networking and Internet Architecture · Computer Science 2026-02-16 Ravis Shirkhani , Stefano Maxenti , Leonardo Bonati , Niloofar Mohamadi , Maxime Elkael , Umair Hashmi , Jeebak Mitra , Michele Polese , Tommaso Melodia , Salvatore D'Oro

The growing demand for high-speed, ultra-reliable, and low-latency communications in 5G and beyond networks has significantly driven up power consumption, particularly within the Radio Access Network (RAN). This surge in energy demand poses…

Networking and Internet Architecture · Computer Science 2025-09-15 Ahmed Al-Tahmeesschi , Yi Chu , Gurdeep Singh , Charles Turyagyenda , Dritan Kaleshi , David Grace , Hamed Ahmadi

Cloud-Radio Access Network (C-RAN) is a promising network architecture to reduce energy consumption and the increasing number of base station deployment costs in mobile networks. However, the necessity of enormous fronthaul bandwidth…

Networking and Internet Architecture · Computer Science 2021-01-13 Turgay Pamuklu , Cicek Cavdar , Cem Ersoy

Open Radio Access Network (O-RAN) offers an open, programmable architecture for next-generation wireless networks, enabling advanced control through AI-based applications on the near-Real-Time RAN Intelligent Controller (near-RT RIC).…

Networking and Internet Architecture · Computer Science 2025-11-10 Ryan Barker , Alireza Ebrahimi Dorcheh , Tolunay Seyfi , Fatemeh Afghah

Open Radio Access Network (ORAN) is being developed with an aim to democratise access and lower the cost of future mobile data networks, supporting network services with various QoS requirements, such as massive IoT and URLLC. In ORAN,…

Networking and Internet Architecture · Computer Science 2021-03-05 Xiaoyang Wang , Jonathan D Thomas , Robert J Piechocki , Shipra Kapoor , Raul Santos-Rodriguez , Arjun Parekh

The recently proposed open-radio access network (O-RAN) architecture embraces cloudification and network function virtualization techniques to perform the base-band function processing by dis-aggregated radio units (RUs), distributed units…

Networking and Internet Architecture · Computer Science 2022-02-23 Sourav Mondal , Marco Ruffini