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Securing the near-real-time (near-RT) control operations in Open Radio Access Networks (Open RAN) is increasingly critical, yet remains insufficiently addressed, as new runtime threats target the control loop while the system is…

Cryptography and Security · Computer Science 2026-01-06 Hamed Alimohammadi , Samara Mayhoub , Sotiris Chatzimiltis , Mohammad Shojafar , Muhammad Nasir Mumtaz Bhutta

The advancement of 5G and NextG networks through Open Radio Access Network (O-RAN) architecture enables a shift toward virtualized, modular, and disaggregated configurations. A core component of O-RAN is the RAN Intelligent Controller…

Cryptography and Security · Computer Science 2024-11-12 Diana Lin , Samarth Bhargav , Azuka Chiejina , Mohamed I. Ibrahem , Vijay K. Shah

In sixth-generation (6G) Open Radio Access Networks (O-RAN), proactive control is preferable. A key open challenge is delivering control-grade predictions within Near-Real-Time (Near-RT) latency and computational constraints under…

Networking and Internet Architecture · Computer Science 2025-10-08 Farhad Rezazadeh , Hatim Chergui , Merouane Debbah , Houbing Song , Dusit Niyato , Lingjia Liu

Despite the growing interest in low-altitude economy (LAE) applications, including UAV-based logistics and emergency response, fundamental challenges remain in orchestrating such missions over complex, signal-constrained environments. These…

Systems and Control · Electrical Eng. & Systems 2026-01-05 Aly Sabri Abdalla , Vuk Marojevic

Cell-free massive multiple-input multiple-output (MIMO) is a key technology for next-generation wireless systems. The integration of cell-free massive MIMO within the open radio access network (O-RAN) architecture addresses the growing need…

Signal Processing · Electrical Eng. & Systems 2026-05-04 Mohammad Hossein Shokouhi , Vincent W. S. Wong

Modern RAN operate in highly dynamic and heterogeneous environments, where hand-tuned, rule-based RRM algorithms often underperform. While RL can surpass such heuristics in constrained settings, the diversity of deployments and…

Machine Learning · Computer Science 2026-01-29 Burak Demirel , Yu Wang , Cristian Tatino , Pablo Soldati

The open radio access network (O-RAN) architecture offers a cost-effective and scalable solution for internet service providers to optimize their networks using machine learning algorithms. The architecture's open interfaces enable network…

Machine Learning · Computer Science 2023-03-28 Chia-Hsiang Lai , Li-Hsiang Shen , Kai-Ten Feng

The integration of Unmanned Aerial Vehicles (UAVs) into Open Radio Access Networks (O-RAN) enhances communication in disaster management and Search and Rescue (SAR) operations by ensuring connectivity when infrastructure fails. However, SAR…

Cryptography and Security · Computer Science 2025-10-22 Zaineh Abughazzah , Emna Baccour , Loay Ismail , Amr Mohamed , Mounir Hamdi

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

Open Radio Access Network (O-RAN) is a major advancement in the telecommunications field, providing standardized interfaces that promote interoperability between different vendors' technologies, thereby enhancing network flexibility and…

Cryptography and Security · Computer Science 2026-03-24 Lujia Liang , Lei Zhang

In this paper, we investigate the amalgamation of cell-free (CF) and extremely large-scale multiple-input multiple-output (XL-MIMO) technologies, referred to as a CF XL-MIMO, as a promising advancement for enabling future mobile networks.…

Information Theory · Computer Science 2024-06-18 Ziheng Liu , Jiayi Zhang , Zhilong Liu , Derrick Wing Kwan Ng , Bo Ai

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

Intent-based network automation is a promising tool to enable easier network management however certain challenges need to be effectively addressed. These are: 1) processing intents, i.e., identification of logic and necessary parameters to…

Networking and Internet Architecture · Computer Science 2024-12-24 Md Arafat Habib , Pedro Enrique Iturria Rivera , Yigit Ozcan , Medhat Elsayed , Majid Bavand , Raimundus Gaigalas , Melike Erol-Kantarci

Multi-user multiple-input, multiple-output (MU-MIMO) designs can substantially increase wireless systems' achievable throughput and connectivity capabilities. However, existing MU-MIMO deployments typically utilize linear processing…

Signal Processing · Electrical Eng. & Systems 2024-09-25 Chathura Jayawardena , Marcin Filo , George N. Katsaros , Konstantinos Nikitopoulos

The coexistence of NR-U and Wi-Fi in unlicensed spectrum introduces a challenging coexistence management problem, where heterogeneous channel access mechanisms lead to a significant imbalance in spectrum utilization and degraded Wi-Fi…

Networking and Internet Architecture · Computer Science 2026-05-28 Po-Heng Chou , Yi-Fang Yu , Shou-Yu Chen , Chiapin Wang

The performance of cloud radio access network (C-RAN) is constrained by the limited fronthaul link capacity under future heavy data traffic. To tackle this problem, extensive efforts have been devoted to design efficient signal…

Information Theory · Computer Science 2015-04-15 Liu Liang , Suzhi Bi , Rui Zhang

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

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

The Open Radio Access Network (O-RAN) initiative, characterized by open interfaces and AI/ML-capable RAN Intelligent Controller (RIC), facilitates effective spectrum sharing among RANs. In this context, we introduce AdapShare, an…

Networking and Internet Architecture · Computer Science 2024-11-18 Sneihil Gopal , David Griffith , Richard A. Rouil , Chunmei Liu

Mobile Edge Computing (MEC) and Open Radio Access Networks (ORAN) are transformative technologies in the development of next-generation wireless communication systems. MEC pushes computational resources closer to end-users, enabling low…

Networking and Internet Architecture · Computer Science 2025-07-29 Ryan Barker , Tolunay Seyfi , Fatemeh Afghah