DIT - RYSC - Comunicaciones en Conferencias Nacionales / National Conferences
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Publication An NFV system to support service provisioning on UAV networks(Universidad de La Coruña, 2021-10-27) Nogales Dorado, Borja; Vidal Fernández, Iván; Sánchez Agüero, Víctor; Valera Pintor, Francisco; González Blázquez, Luis Félix; European Commission; Agencia Estatal de Investigación (España)In this presentation, we will first describe the design and implementation of an NFV system capable of deploying moderately complex network services over a wireless ad-hoc network of resource-constrained compute nodes. The system design targets aerial networks built by Unmanned Aerial Vehicles (UAVs), and it relies on container virtualization to support the execution of network functions within constrained environments, as well as on mobile ad-hoc networking to support the underlying end-to-end network communications [1]. The presentation will also cover the implementation experience from developing this NFV system, which is based on relevant and widely-adopted open-source technologies in the NFV arena such as ETSI Open-Source MANO (OSM) and OpenStack. In addition, we will present the details concerning the integration of this system into a distributed NFV testbed spanning three different remote sites in Spain, i.e., Universidad Carlos III de Madrid (UC3M), Universidad Politécnica de Cataluña (UPC), and Universidad del País Vasco (UPV-EHU). The goal of this testbed is to explore synergies among NFV, UAVs, and 5G vertical services, following a practical approach primarily governed by experimentation. To showcase the potential of this testbed to support vertical services, we will present three different use cases that have been realized as part of our prior research work: i) the automated deployment of an IP telephony service on a delimited geographic area, using a network of interconnected UAVs [2] (noteworthily, this work was awarded by ETSI as the best proof-of-concept demonstration with OSM during the OSM Release Eight cycle [3]); ii) the realization of a smart farming vertical service [4]; and iii) a public-safety vertical use case, which uses aerial and vehicular NFV infrastructures to monitor traffic conditions and handle emergency situations [5]. This latter involves an international collaboration with the Instituto de Telecomunicações of Aveiro, which operates a vehicular NFV infrastructure. Finally, the presentation will tackle the standardization challenges related with the future view of a decentralized and flexible MANO framework, capable of supporting the operation of cost-effective, reliable services beyond the edge of the telecommunication operator infrastructures. In this view, multiple stakeholders would collaboratively provide a wide range of heterogeneous compute-connect devices (e.g., end-user terminals, CPEs, or UAV swarms). These devices might exist and be opportunistically used, or they could otherwise be deployed on-demand by those stakeholders, contributing to the availability of a potentially unlimited pool of network, computing, and storage resources beyond the network edge. This view introduces several standardization challenges to the NFV MANO framework in terms of interoperation, flexibility, robustness, and security. These challenges have been presented at the NFV Evolution1 event organized by ETSI, and will build the basis of our future work in this research line.Publication On the Integration of AI/ML-based scaling operations in the 5Growth platform(IEEE, 2020-11-09) Baranda, Jorge; Mangues-Bafalluy, Josep; Zeydan, Engin; Vettori, L.; Martínez, Ricardo; Li, Xi; Garcia Saavedra, Andres; Chiasserini, C. F.; Casetti, C.; Tomakh, K.; Kolodiazhnyi, O.; Bernardos Cano, Carlos Jesús; European Commission; Ministerio de Economía y Competitividad (España)The automated assurance of vertical service level agreements (SLA) is a challenge in 5G networks. The EU 5Growth project designs and develops a 5G End-to-End service platform that integrates Artificial Intelligence (AI) and Machine Learning (ML) techniques for any decision-making process in the management and orchestration (MANO) stack. This paper presents the detailed architecture and first prototype of the 5Growth platform taking AI/ML-based network service auto-scaling decisions. This also includes the modification of the ETSI network service descriptors for requesting AI/ML-based decisions for orchestration problems and the integration of a data engineering pipeline for real-time data gathering and model execution. Our evaluation shows that AI/ML-related service handling operations (1&-2 s.) are well below instantiation/termination procedures (80/60 s., respectively). Furthermore, online classification can be performed in the order of hundreds of milliseconds (600 ms).Publication DLT federation for Edge robotics(IEEE, 2020-12-24) Antevski, Kiril; Groshev, Milan; Baldoni, Gabriele; Bernardos Cano, Carlos Jesús; European CommissionThe concept of federation in 5G and NFV networks aims to provide orchestration of services across multiple administrative domains. Edge robotics, as a field of robotics, implements the robot control on the network edge by relying on low-latency and reliable access connectivity. In this paper, we propose a solution that enables Edge robotics service to expand its service footprint or access coverage over multiple administrative domains. We propose application of Distributed ledger technologies (DLTs) for the federation procedures to enable private, secure and trusty interactions between undisclosed administrative domains. The solution is applied on a real-case Edge robotics experimental scenario. The results show that it takes around 19 seconds to deploy & federate a Edge robotics service in an external/anonymous domain without any service down-time.Publication GANSO: Automate Network Slicing at the Transport Network Interconnecting the Edge(IEEE, 2020-12-24) Takeru Infiesta, José; Guimarães, Carlos; Contreras Murillo, Luis Miguel; Oliva Delgado, Antonio de la; European Commission5G and Edge computing are two technologies set to impose a paradigm shift from today's traditional networking solutions. In particular, transport networks, which connect distinct computing infrastructures, must guarantee a wide range of performance requirements from coexisting network services. 5G network slicing enables such capability by providing the flexibility to support multiple and isolated virtual networks over the same and shared infrastructure. This paper introduces the GST And Network Slice Operator (GANSO) framework for automating the creation of network slices over SDN architectures, focusing on transport networks interconnecting Edge data centers. To characterise the type of network slice to be deployed, it uses Generic network Slice Templates (GSTs). Initially, five GST attributes are implemented in a proof-of-concept prototype, namely through configurable User Data Access and Rate Limit parameters. It is then validated in a scenario considering the instantiation of network slices over the transport network for different virtual applications hosted across the edge-to-cloud continuum.Publication 5GEN: A tool to generate 5G infrastructure graphs(IEEE, 2019-10-28) Martín Pérez, Jorge; Cominardi, Luca; Bernardos Cano, Carlos Jesús; Mourad, Alain; European CommissionOngoing research on 5G is looking on software platforms to evaluate new developments on 5G networks. Some 5G hardware is now starting to be available, but it is scarce and very limited, which makes validation and performance evaluation of 5G quite challenging. Simulation is the tool of choice for most of the cases, but this requires creating large descriptor files representing a 5G network. This brings forward the need for tools that facilitate the generation of 5G networks' topologies. In this paper we present 5GEN, a tool that automatically creates graphs representing 5G networks. With 5GEN, a researcher can just define the number of resources, and 5GEN will generate the nodes and edges that interconnect them across the infrastructure. The tool has been successfully used to test several 5G network scenarios within the EU 5G-CORAL project.Publication Energy losses estimation tool for Low Voltage Smart grids(AIM, 2019-06) Velasco Rodríguez, José Ángel; Amarís Duarte, Hortensia Elena; Alonso Martínez, Mónica; Casas, Marta; Ministerio de Economía y Competitividad (España)The so-called 20-20-20 targets committed to by the European Union drives the need for a more efficient distribution network. The energy efficiency improvement required involves a 20% reduction of the energy consumption compared to the 1990s. For such cutback, Distribution Systems Operators are encouraged to develop the best strategies to identify and reduce power losses in their networks. This task becomes challenging in Low Voltage Distribution networks due to diversity in the feeder's topology configuration, load distribution and the presence of renewable-based distributed generation. In this paper, a clustering-based methodology is proposed as an energy losses tool to support the energy efficiency decision-making process. A feeder's clustering process using the K-means algorithm is carried out upon a customised network characteristics set that was previously reduced to two coordinates by applying Principal Component Analysis. The relationship between power losses and the net energy imported under the different scenarios is obtained for each feeder class identified. The data and network used in this process correspond to the roll-out deployed at the Spanish Smart Grid Demonstration Project (OSIRIS)Publication Milano: una visión futura para un UAS táctico(Ministerio de Defensa, Secretaría General Técnica, 2018-10) Vidal Fernández, Iván; Sánchez Agüero, Víctor; Valera Pintor, Francisco; Nogales Dorado, Borja; Cabezas, Jaime; Vidal, Carlos; López, Alicia; González, Daniel; Díez, José; Berrazueta, Laura; Merino, Manuel; European Commission; Ministerio de Economía y Competitividad (España)En este artículo se presenta el nuevo sistema de aeronaves no tripuladas Milano, del Instituto Nacional de Técnica Aeroespacial (INTA). Con una autonomía de vuelo de 20 horas, una carga útil de hasta 150 Kg, y un sistema de comunicaciones radio TCP/IP, el sistema desarrollado posibilita misiones de observación y vigilancia que van más allá de las ofrecidas por un sistema táctico tradicional. En el artículo se identifican las principales características del sistema Milano, en particular las relativas a su sistema de comunicaciones en línea de vista radioeléctrica basado en el protocolo IP. Asimismo, se describen las líneas actuales de trabajo consideradas para la evolución de este sistema: 1) mecanismos de vuelo cooperativo; 2) nuevas evoluciones del sistema de comunicaciones radio en línea de vista; 3) desarrollo de mecanismos para la distribución segura de la información de tele-medida de las aeronaves; y 4) estudio de nuevos enfoques disruptivos para favorecer el despliegue flexible de servicios de telecomunicaciones sobre la plataforma de comunicaciones del Milano.Publication Optimizing 5GNetworks(2019-03-28) Molner, Nuria; Oliva Delgado, Antonio de la; Stavrakakis, Ioannis; Azcorra Saloña, ArturoPublication Analysis of relod.net, a basic implementation of the RELOAD protocol for peer-to-peer networks(Fundación General de la Universidad de Granada, 2013) López Samaniego, Marcos; Martínez-Yelmo, Isaías; González Sánchez, RobertoThe P2PSIP Working Group is chartered to develop protocols and mechanisms for the use of SIP in distributed environments, thus minimizing the need for centralized servers. Under this premise, the RELOAD protocol was created, whose design was generalized to accept other applications with similar requirements, and which is currently in process of standardization by the IETF. In this paper, we present a basic implementation and an analysis of this protocol proposed standard, given the great interest displayed in recent years by the scientific and business community in issues related to peerto- peer networks. Later, we conduct several experiments in order to validate its correct operation in real scenarios and provide feedback in relation with the current specification