Results 1 to 10 of about 442 (167)

Toward Modular and Flexible Open RAN Implementations in 6G Networks: Traffic Steering Use Case and O-RAN xApps [PDF]

Sensors, 2021
The development of cellular wireless systems has entered the phase when 5G networks are being deployed and the foundations of 6G solutions are being identified.
Marcin Dryjański, Łukasz Kułacz, Adrian Kliks   +2 more
doaj   +2 more sources

Mitigating ML-Driven Adversarial Attacks on xApps Using Dynamic Defense Mechanisms

IEEE Open Journal of the Communications Society
The open radio access network architecture (O-RAN) architecture leverages intelligent near-real-time applications, known as xApps, to optimize network performance and services.
Prudhvi Kumar Kakani, Mohammad Asif Habibi, Manjunath Reddy Chavva Balannagari, Xavier Costa-Perez, Hans D. Schotten   +4 more
doaj   +2 more sources

A unified service‐based capability exposure framework for closed‐loop network automation

Transactions on Emerging Telecommunications Technologies, Volume 33, Issue 11, November 2022., 2022
In this article, we motivate the need for an enhanced network exposure functionality for network automation. We motivate it by revising the state of the art, propose a candidate architecture, and proof its feasibility with a real world testbed.
Marco Gramaglia, Marton Kajo, Christian Mannweiler, Ömer Bulakci, Qing Wei   +4 more
wiley   +1 more source

Edge Intelligence‐Based RAN Architecture for 6G Internet of Things

Discrete Dynamics in Nature and Society, Volume 2022, Issue 1, 2022., 2022
Edge Intelligence, which blends Artificial Intelligence (AI) with Radio Access Network (RAN) and edge computing, is recommended as a crucial enabling technology for 6G to accommodate intelligent and efficient applications. In this study, we proposed Edge Intelligent Radio Access Network Architecture (EIRA) by introducing new intelligence modules, which
Yang Liu, Qingtian Wang, Haitao Liu, Jiaying Zong, Fengyi Yang, Bo Rong   +5 more
wiley   +1 more source

User Association and Load Balancing Based on Monte Carlo Tree Search

IEEE Access, 2023
The user association algorithm for 5G ultra-dense heterogeneous networks (UD-HetNets) comprising multi-tier base stations is becoming increasingly complex.
Hyeon-Min Yoo, Jung-Mo Moon, Jeehyeon Na, Een-Kee Hong   +3 more
doaj   +1 more source

O-RAN architecture, interfaces, and standardization: Study and application to user intelligent admission control

Frontiers in Communications and Networks, 2023
Open radio access network (O-RAN), driven by O-RAN Alliance is based on the disaggregation of the traditional RAN systems into radio unit (RU), distributed unit (DU) and central unit (CU) components. It provides a unique opportunity to reduce the cost of
Mohammad Alavirad, Umair Sajid Hashmi, Marwan Mansour, Ali Esswie, Ramy Atawia, Gwenael Poitau, Morris Repeta   +6 more
doaj   +1 more source

Optimal Control for Bufferbloat Queue Management Using Indirect Method with Parametric Optimization

Scientific Programming, Volume 2016, Issue 1, 2016., 2016
Because memory buffers become larger and cheaper, they have been put into network devices to reduce the number of loss packets and improve network performance. However, the consequences of large buffers are long queues at network bottlenecks and throughput saturation, which has been recently noticed in research community as bufferbloat phenomenon.
Amr Radwan, Hoang-Linh To, Won-Joo Hwang, Junhu Ruan   +3 more
wiley   +1 more source

Conflict-Aware xApp Admission Control With Priority-Based Preemption in O-RAN

IEEE Access
This paper investigates xApp conflict management in O-RAN from an admission-control perspective. We consider a representative conflict between a conditional handover (CHO) xApp and an energy-saving xApp, where inconsistent control actions may target the ...
Seung-Yeon Kim, Jaekyu Lee
doaj   +1 more source

Exploring the Capabilities of xApps in O-RAN: From Conceptualization to Practical Implementation

IEEE Open Journal of the Communications Society
This paper serves as a foundation for researchers and practitioners to explore the key concepts, primary applications, and potential impacts of xApps in the open radio access network (O-RAN) architecture.
Christof A. O. Rauber, Mohammad Asif Habibi, Xavier Costa-Perez, Marco Di Renzo, Merouane Debbah, Hans D. Schotten   +5 more
doaj   +1 more source

Detecting Out-of-Order Control Messages in O-RAN: Dataset, Benchmarks, and Early-Warning Models

IEEE Open Journal of the Communications Society
The Open Radio Access Network (O-RAN) architecture introduces openness, programmability, and multi-vendor xApp innovation through the Near-Real-Time RAN Intelligent Controller (Near-RT RIC).
Hams Gelban, Rouaa Naim, Ahmed Badawy
doaj   +1 more source