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Security, Privacy, and Trust for Open Radio Access Networks in 6G
Pawani Porambage;Maria Christopoulou;Bin Han;Mohammad Asif Habibi;Hanna Bogucka;Pawel Kryszkiewicz
The programmability of radio access networks was already introduced in the fifth generation of mobile networks by leading the pathway towards the Open RAN. To cater the stringent requirements emerging with the novel services and use cases, Open RAN is becoming integral to 6G as well. The most highlighted characteristics of Open RAN such as disaggregated architecture, cloudification of network func...Show More
User Terminals as Attackers: An Open Dataset Analysis of DDoS Attacks in 5G Networks
Maria Christopoulou;Apostolis Garos;Athina Vekraki;Dimitris Santorinaios;Ioannis Koufos;Sofia Karamitsiani;George Xilouris;Michail-Alexandros Kourtis;Georgios Gardikis;Panagiotis Trakadas
2024 IEEE Conference on Standards for Communications and Networking (CSCN)
Year: 2024 | Conference Paper |
The 5th Generation (5G) of cellular networks, developed by the 3rd Generation Partnership Project (3GPP), aims to meet the growing demands for data and communication services. A key component of the 5G architecture is the Network Data Analytics Function (NWDAF), which enhances network performance and detects anomalies by analyzing real-time data. This paper focuses on detecting abnormal user behav...Show More
User Terminals as Attackers: An Open Dataset Analysis of DDoS Attacks in 5G Networks
Maria Christopoulou;Apostolis Garos;Athina Vekraki;Dimitris Santorinaios;Ioannis Koufos;Sofia Karamitsiani;George Xilouris;Michail-Alexandros Kourtis;Georgios Gardikis;Panagiotis Trakadas
Year: 2024 | Conference Paper |
MERLINS – Moving Target Defense Enhanced with Deep-RL for NFV In-Depth Security
Wissem Soussi;Maria Christopoulou;Gürkan Gür;Burkhard Stiller
2023 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN)
Year: 2023 | Conference Paper |
Cited by: Papers (5)
Moving to a multi-cloud environment and service-based architecture, 5G and future 6G networks require additional defensive mechanisms to protect virtualized network resources. This paper presents MERLINS, a novel architecture generating optimal Moving Target Defense (MTD) policies for proactive and reactive security of network slices. By formally modeling telecommunication networks compliant with ...Show More
TopoFuzzer — A Network Topology Fuzzer for Moving Target Defense in the Telco Cloud
Wissem Soussi;Maria Christopoulou;Themis Anagnostopoulos;Gürkan Gür;Burkhard Stiller
NOMS 2023-2023 IEEE/IFIP Network Operations and Management Symposium
Year: 2023 | Conference Paper |
Cited by: Papers (3)
Telecommunication networks are shifting to multi-cloud environments. This trend is expected to shape the standardization and implementation of future networks. Thus, the protection of virtualized services has become more critical. One of the promising methods to secure virtual resources in that setting is Moving Target Defense (MTD). This paper presents the Network Topology Fuzzer (TopoFuzzer) mod...Show More
Demo: Closed-Loop Security Orchestration in the Telco Cloud for Moving Target Defense
Wissem Soussi;Maria Christopoulou;George Xilouris;Edgardo Montes de Oca;Vincent Lefebvre;Gürkan Gür;Burkhard Stiller
NOMS 2023-2023 IEEE/IFIP Network Operations and Management Symposium
Year: 2023 | Conference Paper |
This work presents a Moving Target Defense (MTD) framework for the protection of network slices and virtual resources in a telco cloud environment. The preliminary implementation provides a closed-loop security management of services with proactive MTD operations to reduce the success probability of attacks, and reactive MTD operations, empowered by a tampering detection and a traffic-based anomal...Show More
ETSI ZSM Driven Security Management in Future Networks
Geoffrey Chollon;Dhouha Ayed;Rodrigo Asensio Garriga;Alejandro Molina Zarca;Antonio Skarmeta;Maria Christopoulou;Wissem Soussi;Gürkan Gür;Uwe Herzog
This paper presents a security management framework driven by Zero-Touch Network and Service Management (ZSM) paradigm and embedded in the High-Level Architecture (HLA) developed in the INSPIRE-5Gplus project. This project work also included design and implementation of different smart 5G security methods and techniques that are essential for achieving security management in future networks. Moreo...Show More
An open source 5G experimentation testbed
Panos Matzakos;Harilaos Koumaras;Dimitris Tsolkas;Maria Christopoulou;George Xilouris;Florian Kaltenberger
2021 IEEE International Mediterranean Conference on Communications and Networking (MeditCom)
Year: 2021 | Conference Paper |
Cited by: Papers (3)
The development of the 5GENESIS portable demonstrator targets a compact 5G physical layout to guarantee portability. Multiple building blocks have been integrated in a modular way to enhance the variety of test cases and experiments that the 5GENESIS portable demonstrator can support. Performance 5G-NSA results are presented in this demo paper.Show More
Moving Target Defense as a Proactive Defense Element for Beyond 5G
Wissem Soussi;Maria Christopoulou;George Xilouris;Gürkan Gür
6G networks will take the digital services offered by 5G to a whole new level with considerably higher bit rates, lower latency, and ultra-re-liability. However, the security of these systems is crucial to fulfill the promise of 6G. A critical element of this requirement is the efficient and pervasive protection of 6G infrastructure and services. In this article, we propose Moving Target Defense (...Show More
5G Experimentation: The Experience of the Athens 5GENESIS Facility
Maria Christopoulou;Georgios Xilouris;Athanasios Sarlas;Harilaos Koumaras;Michail-Alexandros Kourtis;Themistoklis Anagnostopoulos
2021 IFIP/IEEE International Symposium on Integrated Network Management (IM)
Year: 2021 | Conference Paper |
Cited by: Papers (2)
5G is the latest wireless standard designed to comply with stringent performance requirements for supporting diverse use cases spanning over different verticals, considered not feasible with previous cellular network technology. In this context, the European Commission has funded multiple research projects aiming at validating 5G Key Performance Indicators (KPIs) over large scale field trials on d...Show More
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