• Wednesday, 14 June, 16:00-17:30, Room Library Auditorium
  • Session Chair: Riccardo Trivisonno (Huawei Technologies, Germany)



16:00 A Flexible and Reconfigurable 5G Networking Architecture Based on Context and Content Information

Dario Sabella (Intel, Germany); Pablo Serrano (Universidad Carlos III de Madrid, Spain); Giovanni Stea and Antonio Virdis (University of Pisa, Italy); Ilenia Tinnirello, Fabrizio Giuliano and Domenico Garlisi (CNIT); Panagiotis Vlacheas (WINGS ICT SOLUTIONS, Greece); Panagiotis Demestichas (University of Piraeus, Greece); Vassilis Foteions (WINGS ICT SOLUTIONS, Greece); Nikolaos Bartzoudis and Miquel Payaró (CTTC, Spain); Arturo Medela (TST Sistemas, Spain)

The need for massive content delivery is a consolidated trend in mobile communications, and will even increase for next years. Moreover, while 4G maturity and evolution is driven by video contents, next generation (5G) networks will be dominated by heterogeneous data and additional massive diffusion of Internet of Things (IoT). The current network architecture is not sufficient to cope with such traffic, which is heterogeneous in terms of latency and QoS requirements, and variable in space and time. This paper proposes architectural advances to endow the network with the necessary flexibility helping to adapt to these varying traffic needs by providing content and communication services where and when actually needed. Our functional hardware/software (HW/SW) architecture aims at influencing future system standardization and leverage the benefits of some key 5G networking enablers described in the paper. Preliminary results demonstrate the potential of these key technologies to support the evolution toward content-centric and context-aware 5G systems.


16:18 SDN/NFV-based End to End Network Slicing for 5G Multi-tenant Networks

Dimitrios Kritharidis, Panteleimon-Konstantinos Chartsias, Athanasios Amiras and Ioannis Plevrakis (Intracom Telecom, Greece); Konstantinos V. Katsaros (Intracom S.A. Telecom Solutions, Greece); Muhammad Shuaib Siddiqui, Albert Viñés and Eduard Escalona (Fundació i2CAT, Internet i Innovació Digital a Catalunya, Spain); Eleni Trouva (NCSR Demokritos”, Greece); Ioannis Angelopoulos (National Centre for Scientific Research (NCSRD), Greece); Anastasios Kourtis (NCSR Demokritos, Greece); Ioakeim Samaras (Intracom-Telecom & Industrial Systems Institute, Greece)

The concept of network slicing opens the possibilities to address the complex requirements of multi-tenancy in 5G. To this end, SDN/NFV can act as technology enabler. This paper presents a centralised and dynamic approach for creating and provisioning network slices for virtual network operators' consumption to offer services to their end customers, focusing on an SDN wireless backhaul use case. We demonstrate our approach for dynamic end to end slice and service provisioning in a testbed.


16:36 SDN Implementation of Slicing and Fast Failover in 5G Transport Networks

Dimitris Giatsios (University of Thessaly); Kostas Choumas and Paris Flegkas (University of Thessaly, Greece); Thanasis Korakis (New York University, USA); Daniel Camps (i2CAT, Spain)

Software-defined networking is at the root of future 5G transport network design. Among others, it allows for automated network reconfiguration and network slicing support. In this paper we present an OpenFlow-based implementation of a single control plane area in the transport network architecture envisioned by the 5G-XHaul project. We analyze the implementation of the slicing mechanism at the network edge. Furthermore, we show how to incorporate redundant flow entries at the transport nodes in order to provide fast failover for random link failures, without the delays and packet drops associated with reaching a remote controller entity.


16:54 Intelligent Network Management for 5G Systems: The SELFNET Approach

Wei Jiang (German Research Center for Artifitial Intelligence & Technical University (TU) of Kaiserslautern, Germany); Mathias Strufe (DFKI GmbH, Germany); Hans D. Schotten (University of Kaiserslautern, Germany)

The maintenance and management for the current Fourth Generation (4G) networks are still in a manual and semi-automatic manner, which are costly and time-consuming. This imposes a great challenge on the network management of heterogeneous, software-defined and virtualized Fifth Generation (5G) systems. With the advent of network intelligence, a possibility on intelligent management is opened for the 5G system. Without interventions of network administrators, the novel approach can autonomically deal with network failures, cyber-attacks and inefficient resource utilization, which in turn can lower operational expenditure, improve user's experience and reduce time-to-market of new services. In this paper, the reference architecture, functionality, closed-loop control, enabling algorithms of the network intelligence are presented. An intelligent 5G test-bed is set up and the experimental results verify the feasibility and effectiveness.


17:12 System Architecture of Intelligent Monitoring in Multi-Domain Orchestration

Wint Yi Poe (Huawei Technologies - European Research Center, Germany); Ishan Vaishnavi (Huawei Technologies Dusseldorf GmBH & European Research Centre, Germany); Francesco Tusa (University College London, United Kingdom (Great Britain)); Javier Melian (ATOS, Spain); Aurora Ramos (Atos, Spain)

Orchestrating a service or resources across multiple administrative domains requires three main high level steps of operation: i) capability detection of other domains ii) placement of the service request across the domains iii) assurance that the service is functioning within the acceptable bounds of the service level agreement (SLA). This paper focuses on the assurance step; in particular, we present a novel architecture and preliminary implementation that supports monitoring of KPIs across multiple administrative domains. The challenges towards realising such an architecture are: i) coordinated monitoring with no direct access to the other domain's infrastructure ii) monitoring over an abstracted (instead of actual) topology that each administrative domain may expose to other domains iii) different domains have different systems for monitoring with different KPIs as well as different ways of measuring those KPI. Our architecture, referred to as IMoS addresses these challenges to provide an end-to-end monitoring as a fundamental functionality for supporting assurance and SLA management for services orchestration across multi-administrative-domains. In addition, the preliminary results are provided from the first proof of concept implementation of an IMoS. The work done in this paper has been developed within the H2020 ICT14 project 5G Exchange.