Ara es mostren els items 21-40 de 97

    • 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)
      Article
      Accés obert
      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)
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      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 ...
    • An in-band frequency agility modem imlemented with a DSP device 

      Dalmau, J; Delgado, J; Serrat Fernández, Juan; Valle Alarcón, Rafael (Institute of Electrical and Electronics Engineers (IEEE), 1989)
      Text en actes de congrés
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      The authors present a modem with in-band frequency agility that has been implemented with the TMS 32010 signal processor. A strategy based on embedded real-time channel estimation (RTCE) has been adopted to manage the ...
    • An intelligent two-agent self-configuration approach for radio resource management 

      Collados Zamora, Kevin; Gorricho Moreno, Juan Luis; Serrat Fernández, Juan; Hu, Zheng; Xu, Ke (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      In this paper we propose the use of a two-agent learning scheme for the management of radio resources on cellular access networks. The management is materialized by the implementation of a self-configuration system governing ...
    • Análisis de las prestaciones de un esquema de codificación lineal aleatoria sobre redes inalámbricas 

      Garrido Torres, Pablo; Gómez, David; Lanza, Jorge; Agüero Calvo, Ramón; Serrat Fernández, Juan (2015)
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      Este trabajo presenta un novedoso esquema de Network coding intra-flujo, que une un esquema de codificación aleatoria (Random Linear Combination, RLC) con el protocolo UDP. Esta combinación ofrece un servicio fiable, que ...
    • Autonomic resource management in virtual network 

      Mijumbi, Rashid; Gorricho Moreno, Juan Luis; Serrat Fernández, Juan (2012)
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      Virtualization enables the building of multiple virtual networks over a shared substrate. One of the challenges to virtualisation is efficient resource allocation. This problem has been found to be NP hard. Therefore, most ...
    • Business-driven management of differentiated services 

      Rubio Loyola, Javier; Serrat Fernández, Juan; Charalambides, Marinos; Aib, Issam; Pavlou, George; Boutaba, Raouf (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Text en actes de congrés
      Accés obert
      Several intra- and inter-domain quality of service (QoS) provisioning mechanisms for IP networks have been researched and developed using Differentiated Services (DiffServ) technology. However, the incremental efforts ...
    • Business-driven policy optimization for service management 

      Rubio-Loyola, Javier; Toscano-Pulido, Gregorio; Charalambides, Marinos; Magaña-Aguilar, Marisol; Serrat Fernández, Juan; Pavlou, George; Galeana Zapien, Hiram (2015)
      Article
      Accés obert
      The performance of services offered by network operators has a direct impact on its reputation, on its revenue due to new customer subscriptions, and also on penalties that can apply when services are not provided to an ...
    • Challenges to support edge-as-a-service 

      Davy, Steven; Famaey, Jeroen; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Miron, Avi; Dramitinos, Manos; Neves, Pedro Miguel; Latré, Steven; Goshen, Ezer (2014-01-16)
      Article
      Accés restringit per política de l'editorial
      A new era in telecommunications is emerging. Virtualized networking functions and resources will offer network operators a way to shift the balance of expenditure from capital to operational, opening up networks to new and ...
    • Chirp Fourier Processor Design: A Time-domain Approach 

      Delgado Penin, José Antonio; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 1990)
      Text en actes de congrés
      Accés obert
    • Combination of intra-flow network coding and opportunistic routing: reliable communications over wireless mesh networks 

      Garrido Torres, Pablo; Gómez, David; Agüero Calvo, Ramón; Serrat Fernández, Juan (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering (ICST), 2015)
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      Opportunistic routing has recently appeared as a technique aimed to increase the performance of wireless mesh networks, by taking advantage of the broadcast nature of the wireless medium. Despite the remarkable attention ...
    • Combination of random linear coding and cross-layer opportunistic routing: performance over bursty wireless channels 

      Garrido Torres, Pablo; Gómez, David; Agüero Calvo, Ramón; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      In this work we focus on the application of an intra-flow linear random coding scheme over wireless mesh networks. We propose a cross-layer technique to balance the load between relaying nodes, considering the quality of ...
    • Comportamiento de un protocolo ARQ en canal de hf a 2400 bps 

      Serrat Fernández, Juan; Dalmau, Jordi (1991)
      Text en actes de congrés
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      Today HF communication systems rely on the concept of adaptation. In fact, the benefits of exploiting the time/frequency variant capacity of the HF channel have been reported elsewhere. Adaptive systems can play an important ...
    • Computing at the edge: but, what edge? 

      Contreras Murillo, Luis Miguel; Baliosian De Lazzari, Javier Ernesto; Martínez-Julia, Pedro; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      The traditional telecommunications business is evolving towards offering a richer set of services beyond basic connectivity, leveraging on network programmability and virtualization. A versatile execution environment is ...
    • Contributions to efficient resource management in virtual networks 

      Mijumbi, Rashid; Gorricho Moreno, Juan Luis; Serrat Fernández, Juan (2014-06-30)
      Article
      Accés restringit per política de l'editorial
      Network virtualisation is a promising technique for a better future Internet by allowing for network resource sharing. However, resource sharing requires that virtual nodes and links be embedded onto substrate nodes and ...
    • Deployment of future services in a multi-access edge computing environment using intelligence at the edge 

      Ssemakula, John Bosco; Gorricho Moreno, Juan Luis; Kibalya, Godfrey Mirondo; Serrat Fernández, Juan (2023-08)
      Article
      Accés obert
      The transition to beyond fifth generation (B5G) and sixth generation (6G) networks will lead to the support of new and future services, like virtual reality, vehicle colli-sion avoidance or Internet-of-Things applications, ...
    • Design and evaluation of algorithms for mapping and scheduling of virtual network functions 

      Mijumbi, Rashid; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Bouten, Niels; De Turck, Filip; Davy, Steven (2015)
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      Network function virtualization has received attention from both academia and industry as an important shift in the deployment of telecommunication networks and services. It is being proposed as a path towards cost efficiency, ...
    • Design and evaluation of learning algorithms for dynamic resource management in virtual networks 

      Mijumbi, Rashid; Gorricho Moreno, Juan Luis; Serrat Fernández, Juan; Claeys, Maxim; De Turck, Filip; Latré, Steven (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Comunicació de congrés
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      Network virtualisation is considerably gaining attention as a solution to ossification of the Internet. However, the success of network virtualisation will depend in part on how efficiently the virtual networks utilise ...
    • DSP based platform for an enhanced HF channel simulator 

      Serrat Fernández, Juan; Valle Alarcón, Rafael (IEE Pubs, 1997)
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      With the aim of improving existing tools for testing new HF transmission systems, this article describes a modification of the basic Watterson (1970) model which can be implemented without any extra added complexity with ...
    • Dynamic resource management in SDN-based virtualized networks 

      Mijumbi, Rashid; Serrat Fernández, Juan; Rubio-Loyola, Javier; Bouten, Niels; De Turck, Filip; Latré, Steven (2014)
      Text en actes de congrés
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      Network virtualization allows for an abstraction between user and physical resources by letting a given physical infrastructure to be shared by multiple service providers. However, network virtualization presents some ...