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This paper explores the application of uplink fronthaul compression techniques within Open RAN (O-RAN) to mitigate fronthaul load in decentralized distributed MIMO (DD-MIMO) systems. With the ever-increasing demand for high data rates and…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Mostafa Rahmani , Junbo Zhao , Vida Ranjbar , Ahmed Al-Tahmeesschi , Hamed Ahmadi , Sofie Pollin , Alister G. Burr

The open radio access network (O-RAN), with its disaggregated and open architecture, is poised to meet the demands of the next generation of wireless communication. However, to unlock the full potentials of O-RAN, real-time network modeling…

Information Theory · Computer Science 2023-08-08 Javad Mirzaei , Ibrahim Abualhaol , Gwenael Poitau

5G and beyond networks promise advancements in bandwidth, latency, and connectivity. The Open Radio Access Network (O-RAN) framework enhances flexibility through network slicing and closed-loop RAN control. Central to this evolution is…

Systems and Control · Electrical Eng. & Systems 2025-03-12 Joshua Groen , Zixian Yang , Divyadharshini Muruganandham , Mauro Belgiovine , Lei Ying , Kaushik Chowdhury

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

Virtualized Radio Access Network (vRAN) is one of the key enablers of future wireless networks as it brings the agility to the radio access network (RAN) architecture and offers degrees of design freedom. Yet, it also creates a challenging…

Networking and Internet Architecture · Computer Science 2021-07-16 Fahri Wisnu Murti , Samad Ali , Matti Latva-aho

Building on the principles of openness and intelligence, there has been a concerted global effort from the operators towards enhancing the radio access network (RAN) architecture. The objective is to build an operator-defined RAN…

Signal Processing · Electrical Eng. & Systems 2020-05-19 Solmaz Niknam , Abhishek Roy , Harpreet S. Dhillon , Sukhdeep Singh , Rahul Banerji , Jeffery H. Reed , Navrati Saxena , Seungil Yoon

Distributed scheduling is essential for open radio access network (O-RAN) employing advanced physical-layer techniques such as multi-user MIMO (MU-MIMO), carrier aggregation (CA), and joint transmission (JT). This work investigates the…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Tenghao Cai , Lei Li , Tsung-Hui Chang

Centralized Radio Access Network (C-RAN) is a new paradigm for wireless networks that centralizes the signal processing in a computing cloud, allowing commodity computational resources to be pooled. While C-RAN improves utilization and…

Information Theory · Computer Science 2017-02-03 Kyle Whetzel , Matthew C. Valenti

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

The capacity sharing problem in Radio Access Network (RAN) slicing deals with the distribution of the capacity available in each RAN node among various RAN slices to satisfy their traffic demands and efficiently use the radio resources.…

Networking and Internet Architecture · Computer Science 2022-07-22 Irene Vilà , Oriol Sallent , Jordi Pérez-Romero

The hierarchical architecture of Open Radio Access Network (O-RAN) has enabled a new Federated Learning (FL) paradigm that trains models using data from non- and near-real-time (near-RT) Radio Intelligent Controllers (RICs). However, the…

Machine Learning · Computer Science 2025-08-05 Shunxian Gu , Chaoqun You , Bangbang Ren , Deke Guo

LoRaWAN is a compelling low-cost solution for large-scale indoor Internet of Things (IoT) data backhaul, owing to its strong penetration capability and low power consumption. However, its default pure ALOHA access mechanism leads to severe…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Junxiao Liu , Xinyu Fan , Luping Xiang , Kun Yang

In this paper, a cloud radio access network (Cloud-RAN) based collaborative edge AI inference architecture is proposed. Specifically, geographically distributed devices capture real-time noise-corrupted sensory data samples and extract the…

Information Theory · Computer Science 2024-04-10 Pengfei Zhang , Dingzhu Wen , Guangxu Zhu , Qimei Chen , Kaifeng Han , Yuanming Shi

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

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

As wireless communication systems become more advanced, Open Radio Access Networks (O-RAN) stand out as a notable framework that promotes interoperability and cost-effectiveness. An examination of the progression of RAN architectures, as…

Networking and Internet Architecture · Computer Science 2026-04-03 Mira Chandra Kirana , Patatchona Keyela , Fatemeh Rostamian , Deemah H. Tashman , Soumaya Cherkaoui

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

The telecommunications industry faces a dual transformation: the architectural shift toward Open Radio Access Networks (O-RAN) and the emerging threat from quantum computing. O-RAN disaggregated, multi-vendor architecture creates a larger…

Cryptography and Security · Computer Science 2025-10-24 Vipin Rathi , Lakshya Chopra , Madhav Agarwal , Nitin Rajput , Kriish Sharma , Sushant Mundepi , Shivam Gangwar , Rudraksh Rawal , Jishan

The goal of Next-Generation Networks is to improve upon the current networking paradigm, especially in providing higher data rates, near-real-time latencies, and near-perfect quality of service. However, existing radio access network (RAN)…

Networking and Internet Architecture · Computer Science 2023-03-06 Ibrahim Tamim , Sam Aleyadeh , Abdallah Shami

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