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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

In this letter, we study the energy efficiency (EE) optimisation of unmanned aerial vehicles (UAVs) providing wireless coverage to static and mobile ground users. Recent multi-agent reinforcement learning approaches optimise the system's EE…

Networking and Internet Architecture · Computer Science 2022-04-05 Babatunji Omoniwa , Boris Galkin , Ivana Dusparic

The radio access network (RAN) accounts for the largest share of energy consumption in mobile networks, making it essential to understand how and where this energy is used, particularly as future networks move toward higher levels of…

Networking and Internet Architecture · Computer Science 2026-05-13 Urooj Tariq , Rishu Raj , Merim Dzaferagic , Daniel Kilper

As emerging networks such as Open Radio Access Networks (O-RAN) and 5G continue to grow, the demand for various services with different requirements is increasing. Network slicing has emerged as a potential solution to address the different…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-19 Fatemeh Lotfi , Fatemeh Afghah , Jonathan Ashdown

The fully-decoupled radio access network (FD-RAN) is an innovative architecture designed for next-generation mobile communication networks, featuring decoupled control and data planes as well as separated uplink and downlink transmissions.…

Networking and Internet Architecture · Computer Science 2025-10-29 Yu Sun , Haibo Zhou , Kai Yu , Yunting Xu , Bo Qian , Lin X. Cai

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

Connection management is an important problem for any wireless network to ensure smooth and well-balanced operation throughout. Traditional methods for connection management (specifically user-cell association) consider sub-optimal and…

Information Theory · Computer Science 2021-10-22 Oner Orhan , Vasuki Narasimha Swamy , Thomas Tetzlaff , Marcel Nassar , Hosein Nikopour , Shilpa Talwar

Open Radio Access Network (Open RAN) has gained tremendous attention from industry and academia with decentralized baseband functions across multiple processing units located at different places. However, the ever-expanding scope of RANs,…

Networking and Internet Architecture · Computer Science 2023-10-06 Haiyuan Li , Amin Emami , Karcius Assis , Antonis Vafeas , Ruizhi Yang , Reza Nejabati , Shuangyi Yan , Dimitra Simeonidou

This paper presents a new system model to evaluate the capacity and power consumption of multi-layer 6G networks utilising the upper mid-band (FR3). The model captures heterogeneous 4G, 5G, and 6G deployments, analyzing their performance…

Networking and Internet Architecture · Computer Science 2024-11-15 David López-Pérez , Nicola Piovesan , Giovanni Geraci

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

This paper investigates the integration of Open Radio Access Network (O-RAN) within non-terrestrial networks (NTN), and optimizing the dynamic functional split between Centralized Units (CU) and Distributed Units (DU) for enhanced energy…

Networking and Internet Architecture · Computer Science 2024-09-04 S. M. Mahdi Shahabi , Xiaonan Deng , Ahmad Qidan , Taisir Elgorashi , Jaafar Elmirghani

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

Open Radio Access Network (O-RAN) architecture provides an intrinsic capability to exploit key performance monitoring (KPM) within Radio Intelligence Controller (RIC) to derive network optimisation through xApps. These xApps can leverage…

Networking and Internet Architecture · Computer Science 2025-09-12 Mohammed M. H. Qazzaz , Abdelaziz Salama , Maryam Hafeez , Syed A. R. Zaidi

What is the optimal base station (BS) resource allocation strategy given a measurement-based power consumption model and a fixed target user rate? Rush-to-sleep in time, rush-to-mute in space, awake-but-whisper in power, or a combination of…

Signal Processing · Electrical Eng. & Systems 2026-05-18 Emanuele Peschiera , Youssef Agram , François Quitin , Liesbet Van der Perre , François Rottenberg

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

This paper explores the integration of Open Radio Access Network (O-RAN) principles with non-terrestrial networks (NTN) and investigates the optimization of the functional split between Centralized Units (CU) and Distributed Units (DU) to…

Signal Processing · Electrical Eng. & Systems 2025-06-10 S. M. Mahdi Shahabi , Xiaonan Deng , Ahmad Qidan , Taisir Elgorashi , Jaafar Elmirghani

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

The fifth generation of the Radio Access Network (RAN) has brought new services, technologies, and paradigms with the corresponding societal benefits. However, the energy consumption of 5G networks is today a concern. In recent years, the…

Networking and Internet Architecture · Computer Science 2022-12-09 Nicola Piovesan , David Lopez-Perez , Antonio De Domenico , Xinli Geng , Harvey Bao

Future sixth-generation (6G) mobile networks will demand artificial intelligence (AI) agents that are not only autonomous and efficient, but also capable of real-time adaptation in dynamic environments and transparent in their…

Information Theory · Computer Science 2026-02-17 Osman Tugay Basaran , Martin Maier , Falko Dressler

Network energy saving has received great attention from operators and vendors to reduce energy consumption and CO2 emissions to the environment as well as significantly reduce costs for mobile network operators. However, the design of…

Networking and Internet Architecture · Computer Science 2024-08-21 Dinh-Hieu Tran , Nguyen Van Huynh , Soumeya Kaada , Van Nhan Vo , Eva Lagunas , Symeon Chatzinotas