WeD4 – Satellite Communications
Wednesday, 19 June 2019, 16:00-17:30, Room 4
Session Chair:Konstantinos Liolis (SES, Luxembourg)
Optimising Layered Video Content Delivery Based on Satellite and Terrestrial Integrated 5G Networks
Satish Kumar, Ning Wang, Chang Ge and Barry Evans (University of Surrey, United Kingdom (Great Britain))
Multimedia delivery over satellite network may be considered as a promising service in the emerging 5G cellular system. However, content delivery over the satellite link poses an enormous challenge to the service provider due to its long latency. The objective of this paper is to develop a video streaming framework over satellite and terrestrial integrated 5G content delivery infrastructure, which is investigated in the EU 5GPPP phase 2 SaT5G Project where satellite link is used as an additional channel as 5G backhaul. In this work, clients send SVC (Scalable Video Coding) layer download request to the Multi-access Edge Computing (MEC) server, which is able to dynamically select a backhaul link (Satellite back-haul or terrestrial) for each layer download request according to specific contexts. The purpose is to achieve optimised content load distribution between the two types of 5G backhaul links. Experiments conducted reveal that the proposed framework is able to achieve a good traffic offloading percentage without compromising with QoE of the end-user.
TALENT: Towards Integration of Satellite and Terrestrial Networks
Pouria Sayyad Khodashenas (i2CAT Foundation (i2CAT), Spain); Hamzeh Khalili (Fundació i2CAT, Internet i Innovació Digital a Catalunya, Spain); Daniel Guija (i2CAT Foundation (i2CAT), Spain); Muhammad Shuaib Siddiqui (Fundació i2CAT, Internet i Innovació Digital a Catalunya, Spain)
Innovation of technologies for communication systems, specifically in satellite domain, cloud technologies and 5G terrestrial systems is reaching a point of convergence which promises a new communication paradigm, 5G. It enables a new range of features such as agile service provisioning, multitenancy, software controlled and dynamic management, on-demand service-oriented resource allocation, universal multiaccess, and ubiquitous connectivity. Standardization bodies as 3GPP and ETSI recognize and promote terrestrial and satellite interworking. The complete integration can be achieved with the combination of radio networks, including core and access, and the satellite systems, with computational resources expanded from the core to the network’s edge. In this novel ecosystem, a coordination framework is an essential enabler to realize 5G vision. Combined management of different resources will be performed through a MANO-like framework, which is the focus of this paper. The proposed solution provides a user-friendly single point of interaction for all stakeholders in the ecosystem, i.e. terrestrial and satellite operators as well as 5G vertical providers, where they can launch and manage end-to-end 5G services. The system allows easy integration of multiple applications as well as solutions provided by radio and satellite vendors.
The SHINE Testbed for Secure In-Network Caching in Hybrid Satellite-Terrestrial Networks
Simon Pietro Romano (University of Napoli Federico II, Italy); Cesare Roseti (University of Rome Tor Vergata, Italy); Massimo Zito (ITSLAB srl, Italy); Michele Luglio (University of Rome Tor Vergata – Dip. Ing. Elettronica, Italy)
SHINE is a European Space Agency funded project focusing on the secure distribution of multimedia contents in the presence of hybrid satellite-terrestrial networks equipped with in-network caching capabilities. We describe the SHINE testbed, from both the design and the implementation perspectives. We also identify the set of procedures that need to be adopted when deploying the SHINE components in the form of containerized micro-services on top of the SHINE infrastructure.
Design of Moving Experimentation Facility to Showcase Satellite Integration into 5G
Christos Politis and Konstantinos Liolis (SES, Luxembourg); Marius Corici and Eric Troudt (Fraunhofer FOKUS, Germany); Zsolt Szabo (Fraunhofer Institut FOKUS, Germany); Joe Cahill (iDirect, Ireland)
This paper presents the end-to-end design of the Satellite-enabled 5G Moving Experimentation Facility (S5GMEF) currently under development as part of the H2020 5G PPP Phase III project “5G-VINNI” and the ESA ARTES project “SATis5”, which aims to showcase the satellite integration into 5G with focus on satellite backhauling solutions. It addresses the split of the 5G system between the Central Node and the Edge Node hosted on-board a satellite connected vehicle, elaborates on the satellite transport network between the 5G Radio Access Network (RAN) and the 5G Core, and describes also the Management and Orchestration (MANO) and Network Functions Virtualisation Infrastructure (NFVI) features of the S5GMEF.
Implementation of Virtualised Network Functions (VNFs) for Broadband Satellite Networks
Ahmed Abdelsalam (University of Rome Tor Vergata, Italy); Armir Bujari (University of Padua, Italy); Michele Luglio (University of Rome Tor Vergata – Dip. Ing. Elettronica, Italy); Daniele Munaretto (Athonet, Italy); Claudio E. Palazzi (University of Padua, Italy); Mattia Quadrini (University of Rome Tor Vergata – Dip. Ing. Elettronica, Italy); Simon Pietro Romano (University of Napoli Federico II, Italy); Cesare Roseti and Francesco Zampognaro (University of Rome Tor Vergata, Italy)
We present the design and implementation aspects of a virtualized Performance Enhancing Proxy (vPEP), achieving performance optimizations in a 5G compliant architecture involving the satellite as an alternate, additional backhaul link. The deployment of hybrid terrestrial-satellite configurations is realized through the vPEP agent, meant as a chain of Virtual Network Functions (VNFs) properly distributed at the network edges, enhancing protocol performance and/or bringing value-added services in the end-to-end path. To this end, we present a viable integration pattern of the satellite into the 5G service-based architecture, outlining key functional components. In addition, we present a preliminary evaluation study employing a vPEP embodying the QUIC protocol in a possible web-browsing 5G optimized slice.