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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 future wireless systems of beyond 5G and 6G, addressing diverse applications with varying quality requirements is essential. Open Radio Access Network (O-RAN) architectures offer the potential for dynamic resource adaptation based on…

Networking and Internet Architecture · Computer Science 2024-10-07 Huan X. Nguyen , Kexuan Sun , Duc To , Quoc-Tuan Vien , Tuan Anh Le

Fronthaul limitations in terms of capacity and latency motivate the growing interest in the wireless industry for the study of alternative functional splits between cloud and edge nodes in Cloud Radio Access Network (C-RAN). This work…

Information Theory · Computer Science 2017-06-23 Jinkyu Kang , Osvaldo Simeone , Joonhyuk Kang , Shlomo Shamai

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

Cloud radio access networks (C-RAN) are a promising technology to enable the ambitious vision of the fifth generation (5G) communication networks. In spite of the potential benefits of C-RAN, the operational costs are still a challenging…

Information Theory · Computer Science 2016-07-22 Alaa Alameer , Aydin Sezgin

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

Cloud Radio Access Network (C-RAN) is a prominent architecture for 5G wireless cellular system that is based on the centralization of baseband processing for multiple distributed radio units (RUs) at a control unit (CU). In this work, it is…

Information Theory · Computer Science 2017-05-19 Seongah Jeong , Osvaldo Simeone , Alexander Haimovich , Joonhyuk Kang

In this paper, we propose incorporating Optical Wireless Communication (OWC) and Passive Optical Network (PON) technologies into next generation spine-and-leaf Data Centre Networks (DCNs). In this work, OWC systems are used to connect the…

Networking and Internet Architecture · Computer Science 2024-04-23 Abrar S. Alhazmi , Sanaa H. Mohamed , Ahmad Qidan , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

Modulation compression is a technique considered in the recent Open-RAN (O-RAN) framework, which has continued the 3GPP effort towards the definition of new virtualized and multi-vendor RAN architectures. Basically, fronthaul compression is…

Networking and Internet Architecture · Computer Science 2020-11-10 Sandra Lagen , Lorenza Giupponi , Andreas Hansson , Xavier Gelabert

Wireless access through a large distributed network of low-complexity infrastructure nodes empowered with cooperation and coordination capabilities, is an emerging radio architecture, candidate to deal with the mobile data capacity crunch.…

Information Theory · Computer Science 2013-04-04 Antonis G. Gotsis , Angeliki Alexiou

In this paper, we investigate a radio access network (RAN) slicing problem for Internet of vehicles (IoV) services with different quality of service (QoS) requirements, in which multiple logically-isolated slices are constructed on a common…

Machine Learning · Computer Science 2020-12-04 Wen Wu , Nan Chen , Conghao Zhou , Mushu Li , Xuemin Shen , Weihua Zhuang , Xu Li

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 rapid advancement of 5G networks and the upcoming transition to 6G necessitate the use of the Open Radio Access Network (O-RAN) architecture to enable greater flexibility, interoperability, and innovation. This shift towards 6G and…

Networking and Internet Architecture · Computer Science 2024-05-31 Seyed Bagher Hashemi Natanzi , Bo Tang

This paper proposes a vision-based framework for the intelligent control of mobile Open Radio Access Network (O-RAN) base stations (gNBs) operating in dynamic wireless environments. The framework comprises three innovative components. The…

Networking and Internet Architecture · Computer Science 2026-03-20 Pedro Duarte , André Coelho , Francisco Ribeiro , Filipe B. Teixeira , Luís Pessoa , Manuel Ricardo

It's possible to distribute the Internet to users via drones. However it is then necessary to place the drones according to the positions of the users. Moreover, the 5th Generation (5G) New Radio (NR) technology is designed to accommodate a…

Networking and Internet Architecture · Computer Science 2024-09-19 Nathan Boyer

In this paper, we propose an rApp, named SliceMapper, to optimize the mapping process of the open centralized unit (O-CU) and open distributed unit (O-DU) of an open radio access network (O-RAN) slice subnet onto the underlying open cloud…

Networking and Internet Architecture · Computer Science 2026-03-17 Mohammad Asif Habibi , Xavier Costa-Pérez , Hans D. Schotten

The disaggregation of the Radio Access Network (RAN) introduces unprecedented flexibility but significant operational complexity, necessitating automated management frameworks. However, current Open RAN (O-RAN) orchestration relies on…

Networking and Internet Architecture · Computer Science 2026-03-05 Gabriela da Silva Machado , Gustavo Z. Bruno , Alexandre Huff , Jose Marcos Camara Brito , Cristiano B. Both

Multi-connectivity (MC) for aerial users via a set of ground access points offers the potential for highly reliable communication. Within an open radio access network (O-RAN) architecture, edge clouds (ECs) enable MC with low latency for…

Networking and Internet Architecture · Computer Science 2025-03-12 F. Giarrè , I. A. Meer , M. Masoudi , M. Ozger , C. Cavdar

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

Cloud Radio Access Network (C-RAN) refers to the virtualization of base station functionalities by means of cloud computing. This results in a novel cellular architecture in which low-cost wireless access points, known as radio units (RUs)…

Information Theory · Computer Science 2015-12-25 Osvaldo Simeone , Andreas Maeder , Mugen Peng , Onur Sahin , Wei Yu