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Ara es mostren els items 34-53 de 101

    • Development and experimentation towards a multicast-enabled Internet 

      Careglio, Davide; Papadimitriou, Dimitri; Agraz Bujan, Fernando; Sahhaf, S; Perelló Muntan, Jordi; Tavernier, W; Spadaro, Salvatore; Colle, Didier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      In this paper, we report our development experience and experimentation studies of two multicast routing schemes for the Internet, namely, PIM-SSM and GCMR. We detail their implementation over the Quagga open ...

    • Disaggregated delay modeling in multidomain networks 

      Careglio, Davide; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2023)
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      Accurate delay estimation is one of the enablers of future network connectivity services. If such connectivity services require isolation (slicing), such delay estimation should not be limited to a maximum value defined ...

    • Dynamic compact multicast routing on power-law graphs 

      Pedroso, Pedro; Papadimitriou, Dimitri; Careglio, Davide (IEEE, 2011)
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      Compact routing schemes address the fundamental tradeoff between the memory space required to store the routing table entries and the length of the routing paths that these schemes produce. This paper introduces the first ...

    • Eco-sustainable routing in optical networks 

      Ricciardi, Sergio; Wang, Jiayuan; Palmieri, Francesco; Careglio, Davide; Manolova, Anna; Santos Boada, Germán (2013-12-01)
      Article
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      It is quite easy to foresee that in the next years, the future generation ultra-high speed network infrastructures and equipments will be no longer constrained only by their pure transport capacity, but also by their ...

    • Effective amplification of real WDM burst traffic using optical gain clamping 

      Zannin, Marcelo; Taccheo, Stefano; Ennser, Karin; Careglio, Davide; Solé Pareta, Josep (2008-05-04)
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      Experimental studies of real optical burst traffic in WDM systems are performed with optical gain clamping for stabilizing the EDFA amplification. Impairments of power variation due to burst are shown to be negligible.

    • End-user traffic policing for QoS assurance in polyservice RINA networks 

      León Gaixas, Sergio; Perelló Muntan, Jordi; Careglio, Davide; Grasa, Eduard; Tarzan Lorente, Miquel (2019-03)
      Article
      Accés obert
      Looking at the ever-increasing amount of heterogeneous distributed applications supported on current data transport networks, it seems evident that best-effort packet delivery falls short to supply their actual needs. ...

    • Energy aware paradigm for energy efficient ICT: a systemic approach 

      Ricciardi, Sergio; Careglio, Davide; Santos Boada, Germán; Solé Pareta, Josep (2010)
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      In this work we describe the Energy Aware Paradigm we believe should be adopted for successfully designing and deploying energy efficient ICT (Information and Communication Technologies) based systems.

    • Energy efficiency of elastic frequency grids in multilayer IP/MPLS-over-flexgrid networks 

      Ricciardi, Sergio; Palmieri, Francesco; Castiglione, Aniello; Careglio, Davide (2015-10)
      Article
      Accés obert
      Flexgrid Optical Networks provide higher spectrum efficiency and flexibility in comparison to traditional wavelength switched optical networks (WSON) due to the finer granularity in managing communication channels at the ...

    • Energy-aware routing optimization in dynamic GMPLS controlled optical networks 

      Wang, J; Ricciardi, Sergio; Fagertun, A.M.; Ruepp, Sarah; Careglio, Davide; Dittmann, L. (IEEE, 2012)
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      In this paper, routing optimizations based on energy sources are proposed in dynamic GMPLS controlled optical networks. The influences of re-routing and load balancing factors on the algorithm are evaluated, with a focus ...

    • Energy-oriented models for WDM networks 

      Ricciardi, Sergio; Careglio, Davide; Palmieri, Francesco; Fiore, Ugo; Santos Boada, Germán; Solé Pareta, Josep (2010)
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      A realistic energy-oriented model is necessary to formally characterize the energy consumption and the consequent carbon footprint of actual and future high-capacity WDM networks. The energy model describes the energy ...

    • Evaluating energy savings in WoL-enabled networks of PCs 

      Ricciardi, Sergio; Santos Boada, Germán; Careglio, Davide; Palmieri, Francesco; Fiore, Ugo (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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      In this paper we present EnergySave, a smart energy-saving system that, by leveraging the consolidated WoL (Wake on LAN) technology, allows the remote wake-up of PCs from a centralized management server, providing easy and ...

    • Experimental study on the impact of regenerator placement strategies when dynamically provisioning in translucent GMPLS WSON networks 

      Martínez, Ricardo; Casellas, Ramon; Muñoz, Raul; García Manrubia, Bélen; Pavón Mariño, Pablo; Klinkowski, Miroslaw; Careglio, Davide (Optical Society of America, 2011)
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      The impact of the regenerator placement strategies when dynamically provisioning connections in translucent WSON is studied. The evaluation is experimentally conducted in the ADRENALINE testbed in terms of the connection ...

    • Experimenting with real application-specific QoS guarantees in a large-scale RINA demonstrator 

      Perelló Muntan, Jordi; López Brescó, Albert; Careglio, Davide (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      This paper reports the definition, setup and obtained results of the Fed4FIRE + medium experiment ERASER, aimed to evaluate the actual Quality of Service (QoS) guarantees that the clean-slate Recursive InterNetwork ...

    • GPON and EP2P: a techno-economic study 

      Ricciardi, Sergio; Santos Boada, Germán; Careglio, Davide; Domingo Pascual, Jordi (2012)
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      New services like Video on demand/Internet Protocol Television, Voice over IP and high speed Internet access demand very high bandwidth to provide Triple Play services to the customers. The ADSL/ADLS2+ and the VDSL/VDSL2 ...

    • Guaranteeing QoS requirements in long-haul RINA networks 

      León Gaixas, Sergio; Perelló Muntan, Jordi; Careglio, Davide; Tarzan Lorente, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      In the last years, networking scenarios have been evolving, hand-in-hand with new and varied applications with heterogeneous Quality of Service (QoS) requirements. These requirements must be efficiently and effectively ...

    • Hardware leverages for energy reduction in large-scale distributed systems 

      Careglio, Davide; Da Costa, Georges; Ricciardi, Sergio (Wiley, 2015-03-01)
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      This chapter provides the summary and references on existing and future leverages to adapt the underlying hardware infrastructures of large-scale distributed computing systems in order to decrease their energy consumption. ...

    • ILP modeling of many-to-many replicated multimedia communication 

      Walkowiak, Krzysztof; Bulira, Damian; Careglio, Davide (2013-09-01)
      Article
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      On-line communication services were evolving from a simple text-based chats towards sophisticated videopresence appliances. The bandwidth consumption of those services is constantly growing due to the technology development ...

    • ILP modeling of many-to-many transmissions in computer networks 

      Walkowiak, Krzysztof; Bulira, Damian; Careglio, Davide (Polish Academy of Sciences, 2012)
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      Information flow in nowadays networks spreads in the exponential way. This fact is caused by the intensive changes in the Internet communication paradigms. Transmission in the Internet evolved from the simple one-to-one ...

    • Internet routing paths stability model and relation to forwarding paths 

      Papadimitriou, Dimitri; Careglio, Davide; Tarissan, Fabien; Demeester, Piet M.A. (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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      Analysis of real datasets to characterize the local stability properties of the Internet routing paths suggests that extending the route selection criteria to account for such property would not increase the routing path ...

    • Introduction to IP over WDM 

      Spadaro, Salvatore; Careglio, Davide; Aracil Rico, Javier; Fernández Palacios, Juan Pedro; Jajszczyk, Andrzej; Larrabeiti, David; López, Víctor; Masip Bruin, Xavier; Sánchez López, Sergio (Springer, 2009-06-01)
      Capítol de llibre
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      The simple idea of having IP traffic directly transported over optical Wavelength Division Multiplexing (WDM) technology (“Internet Protocol (IP) over WDM”) has been envisioned as the future for the telecommunication ...