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Jordi Ferrer Riera

Jordi Ferrer Riera
Omniaccess S.L.

Head of Product Development, M.Sc, PhD

About

58
Publications
33,909
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692
Citations

Publications

Publications (58)
Article
Full-text available
Network architectures compliant with the Software Defined Networking (SDN) design paradigm, are expected to provide extreme flexibility for service orientation and allow for efficient use of network resources of cloud systems. Nevertheless, radical reconsidering and removal of boundaries set out when studying multi-domain communications are require...
Article
Full-text available
One of the primary challenges associated with Network Functions Virtualization (NFV) is the automated management of the service lifecycle. In this paper, we present a full software-based MANO (Management and Orchestration) stack which operates with OpenStack and OpenDaylight controllers and has the in-built functionality to automate the key phases...
Chapter
Full-text available
Future 5G technologies are expected to overcome the challenges of next generation networks aiming to tackle the novel and manifold business requirements associated to different vertical sectors. Extraordinarily high speeds and capacity, multi-tenancy, heterogeneous technologies convergence, on-demand service-oriented resource allocation or even coo...
Chapter
This chapter proposes a next-generation ubiquitous converged infrastructure to support cloud and mobile cloud computing services. The proposed infrastructure facilitates efficient and seamless interconnection of fixed and mobile end users with computational resources through a heterogeneous network integrating optical metro and wireless access netw...
Conference Paper
Full-text available
The Cloud Enabled Small Cell (CESC) concept proposed in EU funded project SESAME has emerged as a promising solution to form a multi-tenant, multi-service architecture at the network edge according to 5G needs. It allows several operators/service providers to engage in a sharing model of both radio access capacity and Mobile Edge Computing (MEC) ca...
Conference Paper
Full-text available
Network Functions Virtualization is focused on migrating traditional hardware-based network functions to software-based appliances running on standard high volume severs. There are a variety of challenges facing early adopters of Network Function Virtualizations; key among them are resource and service mapping, to support virtual network function o...
Conference Paper
Full-text available
The evolution of 5G mobile radio and its complex interaction with fixed access network infrastructures poses new challenges and opportunities. In this article, a software-defined converged fixed-mobile 5G architecture is introduced using carrier-grade Ethernet as a transport platform. An active remote node (ARN) is used to connect end-users. Powere...
Article
The NFV is focused at virtualizing network functions such as gateways, path computing devices, resource allocation mechanisms, proxies, firewalls and transcoders, traditionally carried out by specialized hardware devices, and migrating these functions to software-based appliances. In this paper, an analytic model for the NFV forwarding graph is pro...
Article
Mobile computation offloading has been identified as a key-enabling technology to overcome the inherent processing power and storage constraints of mobile end devices. To satisfy the low-latency requirements of content-rich mobile applications, existing mobile cloud computing solutions allow mobile devices to access the required resources by access...
Conference Paper
Full-text available
It is envisaged that end-user access bandwidth requirements will notably increase in the coming years; at the same time, the number of connected mobile devices will also exponentially grow as the fully-digital connected homes (Internet of Things) becomes an everyday reality. This article presents an active remote node (ARN) at an intermediate locat...
Conference Paper
Full-text available
Undoubtedly, SDN has the potential to fundamentally change the way end-to-end networks are provisioned and designed. By introducing programmability into networking, the handling of network changes and network provisioning via open software interfaces has become a reality; together with the hardware/software virtualization advances in server systems...
Article
Full-text available
Network Functions Virtualization (NFV) is an emerging technology approach, which refers to the migration of certain network functionalities, traditionally performed by hardware elements, to virtualized IT infrastructures, where they are deployed as software components. NFV leverages commodity servers and storage, including cloud platforms, to enabl...
Article
Cloud computing service emerged as an essential component of the Enterprise IT infrastructure. Migration towards a full range and large-scale convergence of Cloud and network services has become the current trend for addressing requirements of the Cloud environment. Our approach takes the infrastructure as a service paradigm to build converged virt...
Conference Paper
Full-text available
New software-defined open network concepts are proposed in this paper to enable an efficient implementation of front- and backhaul solutions for future 5G mobile networks. Main requirements for 5G front- and backhaul are derived and then related to the open network architecture enabling multiple operators to share the same physical infrastructure....
Conference Paper
Full-text available
This paper presents a techno-economic comparison between classical passive optical networking (PON) and innovative convergent radio and fibre architectures, based on intermediate aggregation at the remote base station (RBS) of both, fixed and mobile subscribers. By aggregating users at an active remote node (ARN) co-located at the RBS, which offers...
Conference Paper
Software-Defined Networking and Network Functions Virtualisation has brought a revolution within the telecom market landscape. Initial proof-of-concept prototypes for NFV-enabled solutions are being developed at the same time SDN models are identified as the futures solutions within the telecom realm. We provide in this article an overview of the S...
Conference Paper
Full-text available
This paper proposes a next generation ubiquitous converged infrastructure to support Cloud and mobile Cloud computing services. The proposed infrastructure facilitates interconnection of fixed and mobile end users with computational resources through a heterogeneous network integrating optical metro and wireless access networks. To satisfy the low-...
Conference Paper
Software-Defined Networking and Network Functions Virtualization have initiated a new landscape within the telecom market landscape. Initial proof-of-concept prototypes for NFV-enabled solutions are being developed at the same time SDN models are identified as the futures solutions within the telecom realm. In this article, we provide a brief overv...
Article
This article focuses on planning and replanning of virtual infrastructures over optical cloud infrastructures comprising integrated optical network and IT resources. This concept has been developed in the context of the European project GEYSERS. GEYSERS has proposed a novel multi-layer architecture, described in detail, that employs optical network...
Article
Full-text available
This article focuses on planning and replanning of virtual infrastructures over optical cloud infrastructures comprising integrated optical network and IT resources. This concept has been developed in the context of the European project GEYSERS. GEYSERS has proposed a novel multi-layer architecture, described in detail, that employs optical network...
Conference Paper
Full-text available
Mobile computation offloading has been identified as a key enabling technology to overcome the inherent processing power and storage constraints of mobile end devices. To satisfy the low-latency requirements of content-rich mobile applications, existing mobile cloud computing solutions allow mobile devices to access the required resources by access...
Conference Paper
Full-text available
The project CONTENT proposes a next generation ubiquitous converged infrastructure to support Cloud and mobile Cloud computing services. The proposed infrastructure facilitates interconnection of fixed and mobile end users with computational resources through a heterogeneous network integrating optical metro and wireless access networks. In this pa...
Conference Paper
This paper presents an active convergent wired-wireless architecture, which provides Gigabit fixed and radio access. With the development of an advanced Control and Management Plane, the network supports Open Access operation and OAM features.
Conference Paper
Network Service Providers should offer provisioning services with guaranteed Quality of Service (QoS), specifically adapted to the characteristics of the applications running on their network. In this paper we propose the Network Control Layer (NCL), a software framework solution based on Software Defined Networks (SDN), OpenFlow and Network as a S...
Conference Paper
Although cloud computing and the Software Defined Network (SDN) framework are fundamentally changing the way we think about network services, multi-domain and multi-technology problems are not sufficiently investigated. These multi-domain, end-to-end problems concern communication paths that span from the wireless access and the wireless backhaul n...
Conference Paper
Network Function Virtualization (NFV) has emerged as an operator proposal for offering network services with network functions implemented in software, which may be located in Data Centers, network nodes or even in a virtual machine. NFV is theoretically applicable to any network function and aims at simplifying the management of heterogeneous hard...
Conference Paper
Virtualisation of both IT and network resources is a well-known research topic in the Future Internet environment. Most of the work performed on virtualisation has been focused on virtual infrastructure planning or embedding, or on the realisation of the virtualisation itself. However, management of virtualised network environments has not been dee...
Conference Paper
Full-text available
This paper proposes a next generation ubiquitous converged infrastructure to support Cloud and mobile Cloud computing services. The proposed infrastructure facilitates interconnection of fixed and mobile end users with IT resources through a heterogeneous network integrating optical metro and wireless access networks. To support the Infrastructure...
Conference Paper
New emerging high performance and distributed applications require the interconnection of IT resources through high capacity and flexible networks. In this context, the FP7 GEYSERS project proposes on-demand provisioning of converged Virtual Infrastructures composed of IT and optical network resources, able to support the delivery of cloud services...
Conference Paper
This paper presents a multi-tenancy model based on infrastructure resource capability virtualisation. The model, namely Resources, Ownership, Roles and Actors or RORA, approaches network and IT infrastructure virtualisation seamlessly, thus enabling complex provisioning workflows for Cloud services and network services attached.
Conference Paper
The new and emerging IT services require very high network capacities and specific IT resources that cannot be intrinsically delivered by the current Best Effort Internet. In response to this the European project GEYSERS (Generalised Architecture for Dynamic Infrastructure Services) is proposing a novel architecture that employs optical networking,...
Conference Paper
The last evolutions of the Internet bring the fact that all the emergence of novel applications, requirements, services, roles, and the challenges associated to them is being built on top of the same Internet that was designed for handling completely different elements. Converged, both Information Technology (IT) and optical network, infrastructure...
Conference Paper
Full-text available
Optical network infrastructures can be partitioned into multiple parallel, dedicated virtual networks for a physical infrastructure sharing purpose. However, different transport technologies may impact in both the amount and the characteristics of the different virtual instances that can be built on top of a single physical infrastructure. To analy...
Chapter
During the last years, a trend has emerged at universities, large enterprises, government institutions, hospitals and public institutions towards acquiring and deploying their own dark-fibre or wavelength networks as opposed to purchasing bandwidth network services from the traditional operators. These institutions usually follow the condominium mo...
Article
This article presents the Logical Infrastructure Composition Layer as a solution produced in the context of the European project GEYSERS for ICT infrastructure virtualisation in the Future Internet. The concepts behind this layer are based on infrastructure resources virtualisation, regardless of their nature (either IT or network); the Resources-O...
Conference Paper
In this article we propose the GEYSERS project approach for Future Internet based on provisioning full infrastructures as a service by using IT and transport network resource virtualisation. An overview of the project’s architecture is provided that shows the layering scheme empowering the definition of Virtual Infrastructure service. The Logical I...
Article
Full-text available
The Internet, undoubtedly, is the most influential technical invention of the 20th century that affects and constantly changes all aspects of our day-to-day lives nowadays. Although it is hard to predict its long-term consequences, the potential future of the Internet definitely relies on future Internet research. Prior to every development and dep...
Conference Paper
Full-text available
The European Integrated Project GEYSERS - Generalised Architecture for Dynamic Infrastructure Services - is concentrating on infrastructures incorporating integrated optical network and IT resources in support of the Future Internet with special emphasis on cloud computing. More specifically GEYSERS proposes the concept of Virtual Infrastructures o...
Conference Paper
Full-text available
In this paper we propose energy efficient design and operation of infrastructures incorporating integrated optical network and IT resources. For the first time we quantify significant energy savings of a complete solution jointly optimizing the allocation and provisioning of both network and IT resources. Our approach involves virtualization of the...
Conference Paper
Full-text available
Over the years, the Internet has become a central tool for society. The extent of its growth and usage raises critical issues associated with its design principles that need to be addressed before it reaches its limits. Many emerging applications have increasing requirements in terms of bandwidth, QoS and manageability. Moreover, applications such...
Conference Paper
GEYSERS aims at defining an end-to-end network architecture that offers a novel planning, provisioning and operational framework for optical network and IT infrastructure providers and operators. In this framework, physical infrastructure resources (network and IT) are dynamically partitioned to virtual resources and then composed into a Virtual In...
Conference Paper
Full-text available
Grid computing aims at offering standardized access to heterogeneous and distributed resources for scientific communities. However, in order to support emerging next generation Grid applications with specific Quality of Service requirements, the interconnecting networks have also been considered as first-class allocable Grid resources and have been...
Article
New emerging applications are bringing to telecom operators new optical infrastructure challenges to be faced. Thus, we introduce a novel paradigm being studied under the FP7 GEYSERS project, based on optical resource abstraction mechanisms that aims at decoupling the physical infrastructure (optical and IT) from its virtual instance(s) and the Net...
Conference Paper
Full-text available
Harmony is a network resource brokering system that provides co-allocation of heterogeneous (optical) network resources in multi-domain and multi-technology environments with advance reservation functionalities. This system is one of the outcomes of the Phosphorus EC FP6 research project. The Harmony system architecture has evolved from a first pro...
Conference Paper
Full-text available
Grid computing aims the target to offer standardized access to heterogeneous and distributed resources for scientific communities. In order to ensure certain quality of service requirements, the interconnecting networks have also be considered as Grid resources and must be taken into account for the co-scheduling process. However, most current syst...
Article
This deliverable presents the results of several collaboration lines initiated by WP1 partners. Mainly, cooperation with JRA3 from GÉANT2 and IDC from Internet2/DICE, and Phosphorus/Harmony partners contribution to standardization and other bodies such as the Open Grid Forum and the Glif community are described. Finally, collaboration with HSVO/SAV...
Conference Paper
Full-text available
Performance study of successful responses to incremental and poison requests for the Harmony system, a multi-domain distributed Optical Network Service Plane capable of providing end-to-end advance provisioning services by means of a resource brokering system.
Conference Paper
During the last years, Grid applications have become one of the principal consumers of distributed network resources. Grid applications would greatly benefit from a network-aware scheduler system. Harmony is a network resource brokering system integrated with interfaces to the Grid Middleware enabling Grid users to use in a seamless and transparent...
Technical Report
This deliverable presents the results of several collaboration lines initiated by WP1 partners. Mainly, cooperation with JRA3 from GÉANT2 and IDC from Internet2/DICE, and Phosphorus/Harmony partners contribution to standardization and other bodies such as the Open Grid Forum and the Glif community are described. Finally, collaboration with HSVO/SAV...
Technical Report
Since its first prototype presented in Deliverable D1.5, some major enhancements have been added to the Network Service Plane implementation. These include possibilities of distributing the interdomain functionality to improve failure resilience and scalability, integration of AAA concepts developed within WP4, multi-constraint support, malleable r...

Network

Cited By

Projects

Projects (4)
Archived project
Archived project
Project
T-NOVA In a nutshell Network Functions Virtualisation (NFV) is an emerging concept, which refers to the migration of certain network functionalities, traditionally performed by hardware elements, to virtualized IT infrastructures, where they are deployed as software components. NFV leverages commodity servers and storage, including cloud platforms, to enable rapid deployment, reconfiguration and elastic scaling of network functionalities. With the aim of promoting the NFV concept, T-NOVA introduces a novel enabling framework, allowing operators not only to deploy virtualized Network Functions (NFs) for their own needs, but also to offer them to their customers, as value-added services. Virtual network appliances (gateways, proxies, firewalls, transcoders, analyzers etc.) can be provided on-demand as-a-Service, eliminating the need to acquire, install and maintain specialized hardware at customers’ premises. For these purposes, T-NOVA will design and implement a management/orchestration platform for the automated provision, configuration, monitoring and optimization of Network Functions-as-a-Service (NFaaS) over virtualised Network/IT infrastructures. T-NOVA leverages and enhances cloud management architectures for the elastic provision and (re-) allocation of IT resources assigned to the hosting of Network Functions. It also exploits and extends Software Defined Networking platforms for efficient management of the network infrastructure. Furthermore, in order to facilitate the involvement of diverse actors in the NFV scene and attract new market entrants, T-NOVA establishes a “NFV Marketplace”, in which network services and Functions by several developers can be published and brokered/traded. Via the Marketplace, customers can browse and select the services and virtual appliances which best match their needs, as well as negotiate the associated SLAs and be charged under various billing models. A novel business case for NFV is thus introduced and promoted. T-NOVA is an Integrated Project co-funded by the European Commission / 7th Framework Programme, Grant Agreement no. 619520. Its duration is 36 months (January 2014 – December 2016).