• A deep reinforcement learning-based algorithm for reliability-aware multi-domain service deployment in smart ecosystems 

      Kibalya, Godfrey Mirondo; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Okello, Dorothy; Zhang, Peiying (2020-10-05)
      Artículo
      Acceso abierto
      The transition towards full network virtualization will see services for smart ecosystems including smart metering, healthcare and transportation among others, being deployed as Service Function Chains (SFCs) comprised of ...
    • A dynamic pricing algorithm for a network of virtual resources 

      Naudts, Bram; Flores Méndez, Mario Rogelio; Mijumbi, Rashid; Verbrugge, Sofie; Serrat Fernández, Juan; Colle, Didier (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Texto en actas de congreso
      Acceso restringido por política de la editorial
      A service chain is a combination of network services (e.g. network address translation (NAT), a firewall, etc.) that are interconnected to support an application (e.g. video-on-demand). Building a service chain requires a ...
    • A Flexible IP Active Network Architecture 

      Galis, Alex; Serrat Fernández, Juan (Springer, 2000)
      Texto en actas de congreso
      Acceso restringido por política de la editorial
      This paper presents the main concepts of the IST Project FAIN “Future Active IP Networks” [10], a three-year collaborative research project, whose main task is to develop and validate an open, flexible, programmable and ...
    • A flexible protocol communications approach for a supervisory system 

      Valle Alarcón, Rafael; Serrat Fernández, Juan (Institute for Communication Technology Management (CTM), 1989)
      Texto en actas de congreso
      Acceso abierto
      This paper deals with the communication protocol intended to control up to 1016 devices of a new supervisory system. It has been conceived in two complementary phases. The first one (Cycle-A) is intended to inform the ...
    • A hybrid-arq system for hf channels based on codeword partitioning 

      Serrat Fernández, Juan; Dalmau, J Royo (1996-04)
      Artículo
      Acceso abierto
      A technique by which the codewords of an error-correcting code are partitioned to obtain an error-detecting code with half the original length is described. It is intended to be used in a hybrid-ARQ system for achieving ...
    • A multi-domain VNE algorithm based on load balancing in the IoT networks 

      Zhang, Peiying; Liu, Fanglin; Jiang, Chunxiao; Benslimane, Abderrahim; Gorricho Moreno, Juan Luis; Serrat Fernández, Juan (Springer, 2021-02-06)
      Artículo
      Acceso abierto
      The coordinated development of big data, Internet of Things, cloud computing and other technologies has led to an exponential growth in Internet business. However, the traditional Internet architecture gradually shows a ...
    • A multi-stage graph aided algorithm for distributed Service Function Chain provisioning across multiple domains 

      Kibalya, Godfrey Mirondo; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Gift Bujjingo, Doreen; Serugunda, Jonathan (Institute of Electrical and Electronics Engineers (IEEE), 2021-08-16)
      Artículo
      Acceso abierto
      Network Service Providers (NSPs) envisage to support the divergent and stringent requirements of future services by instantiating these services as service chains, commonly referred to as Service Function Chains (SFCs), ...
    • A multi-stage graph based algorithm for survivable Service Function Chain orchestration with backup resource sharing 

      Kibalya, Godfrey Mirondo; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Serugunda, Jonathan; Zhang, Peiying (Elsevier, 2021-06)
      Artículo
      Acceso restringido por política de la editorial
      Network softwarisation introduces flexibility in network management by enabling the deployment of network functions as software modules running on virtual machines. However, this creates new concerns for service availability ...
    • A novel dynamic programming inspired algorithm for embedding of virtual networks in future networks 

      Kibalya, Godfrey Mirondo; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Yao, Haipeng; Zhang, Peiying (2020-06-06)
      Artículo
      Acceso abierto
      Network virtualization is envisioned to support flexible, cost effective and on-demand deployment of multiple Virtual Networks (VNs) on a shared underlying infrastructure. A key challenge under the virtualization paradigm ...
    • A path generation approach to embedding of virtual networks 

      Mijumbi, Rashid; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Boutaba, Raouf (2015-07-21)
      Artículo
      Acceso restringido por política de la editorial
      As the virtualization of networks continues to attract attention from both industry and academia, the virtual network embedding (VNE) problem remains a focus of researchers. This paper proposes a one-shot, unsplittable ...
    • A price based load balancing scheme for multi-operator wireless access networks 

      Choque, Johnny; Agüero, Ramon; Serrat Fernández, Juan; Muñoz, Luis (Springer, 2012)
      Texto en actas de congreso
      Acceso abierto
      We study a load balancing strategy, based on the price offered by the base stations to the end-users who are willing to establish a connection. The proposed scheme is compared with a pure load balancing procedure, in a ...
    • A Real time simulation model for Lognormal Fading channels 

      Delgado Penin, José Antonio; Serrat Fernández, Juan (1991)
      Texto en actas de congreso
      Acceso abierto
      In this paper we present a mathematical model for the simulation of lognormal fading channels. A modeling technique and its validation by computer simulation are described with special emphasis on the aspects related to ...
    • A reinforcement learning approach for placement of stateful Virtualized Network Functions 

      Kibalya, Godfrey Mirondo; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Gift Bujjingo, Doreen; Sseregunda, Jonathan; Zhang, Peiying (International Federation for Information Processing (IFIP), 2021)
      Comunicación de congreso
      Acceso abierto
      Network softwarization increases network flexibility by supporting the implementation of network functions such as firewalls as software modules. However, this creates new concerns on service reliability due to failures ...
    • A service-centric orchestration protocol for self-organizing autonomic management systems 

      Rubio Loyola, Javier; Mérida-Campos, Carlos; Serrat Fernández, Juan; Fernandes Macedo, Daniel; Davy, Steven; Movahedi, Zeinab; Pujolle, Guy (2011-11-01)
      Artículo
      Acceso restringido por política de la editorial
      This article presents a service-centric orchestration protocol for self-interested autonomic management systems that supports the coalition formation process in largescale collaborative and competitive environments. It ...
    • A system approach on power distribution supervisory control catalog 

      Delgado Penin, José Antonio; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 1982)
      Texto en actas de congreso
      Acceso abierto
      The electrical energy distribution networks need remote control systems that are centralised and integrated as far as the functions they can develop are concerned. The need for a thinking unit at the line head for managing ...
    • A two-dimensional architecture for end-to-end resource management in virtual network environments 

      Wang, Ning; Zhang, Yi; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Guo, Tao; Hu, Zheng; Zhang, Ping (2012-09)
      Artículo
      Acceso restringido por política de la editorial
      In recent years, various network virtualization techniques have been proposed for flexibly supporting heterogeneous services over virtual network platforms. However, systematic views on how virtual network resources (VNRs) ...
    • A viewpoint of the network management paradigm for future Internet networks 

      Rubio Loyola, Javier; Serrat Fernández, Juan; Astorga Rivera, José Antonio; Fischer, Andreas; Berl, Andreas; de Meer, Hermann; Koumoutsos, Giannis (2009)
      Texto en actas de congreso
      Acceso restringido por política de la editorial
      This paper presents a viewpoint of the management for the Future Internet. For this description we consider the architectural model developed by the EU IST Autonomic Internet – AUTOI – consortium for the management ...
    • An approach to the cooperative management of multitechnology networks 

      Díaz, R; Serrat Fernández, Juan; Berdekas, K; Karayannis, F (1999-05)
      Artículo
      Acceso abierto
      This article presents a TMN-compliant X interface, the so-called Xcoop interface, as a fundamental component of an operations system developed to cope with the challenges of multidomain, multitechnology networks. Defined ...
    • An efficient algorithm for fast service edge selection in cloud-based telco networks 

      Baliosian De Lazzari, Javier Ernesto; Contreras, Luis Miguel; Martínez-Julia, Pedro; Serrat Fernández, Juan (2021-10)
      Artículo
      Acceso abierto
      Telecommunication operators are increasingly integrating computational infrastructure into their networks at different location levels, including the network edge. This makes a highly distributed processing environment a ...
    • An energy-oriented optimization algorithm for solving the cell assignment problem in 4G-LTE communication networks 

      Rubio-Loyola, Javier; Gonzalez-Hernandez, Loreto; Díez Fernández, Luis Francisco; Agüero Calvo, Ramón; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Texto en actas de congreso
      Acceso restringido por política de la editorial
      This paper presents a novel algorithm for solving the cell assignment problem with special emphasis on energy awareness. The algorithm aims at finding the minimum number of base stations (BSs) that have to be turned on to ...