Now showing items 1-20 of 72

  • A comparative study of impairments aware optical networks planning tools 

    Azodolmolky, Siamak; Angelou, Marianna; Tomkos, Ioannis; Morea, Annalisa; Pointurier, Yvan; Solé Pareta, Josep (2010)
    Conference report
    Open Access
    Transparent and translucent optical networks are widely considered as the prime candidates for the core network technology of the future. These networks provide ultra high speed end-to-end connectivity with high quality ...
  • Actividades para fomentar las competencias transversales relacionadas con el razonamiento científico-técnico 

    Solé Pareta, Josep; Domingo Pascual, Jordi; Santos Boada, Germán (Universidad de Oviedo. Escuela de Ingeniería Informática, 2014-07-09)
    Conference report
    Open Access
    Este artículo describe dos actividades que los autores llevan a cabo desde hace unos años en asignaturas de los últimos cursos de ingeniería y del máster de investigación que imparten. Estas actividades tienen por ...
  • Adaptive burst admission and forwarding in OBS networks 

    Rumley, Sébastien; Pedrola Escribà, Òscar; Klinkowski, Miroslaw; Pedroso, Pedro; Gaumier, Christian; Careglio, Davide; Solé Pareta, Josep (IEEE, 2009-07-31)
    Conference report
    Open Access
    This paper addresses the problem of controlling the performance of optical burst switching (OBS) networks in presence of non-stationary traffic demands. We propose a joint burst admission control and forwarding mechanism ...
  • A GMPLS/OBS network architecture enabling QoS-aware end-to-end burst transport 

    Pedroso, Pedro; Perelló Muntan, Jordi; Spadaro, Salvatore; Careglio, Davide; Solé Pareta, Josep; Klinkowski, Miroslaw (2010-07-01)
    External research report
    Open Access
    This paper introduces a Generalized Multi-Protocol Label Switching (GMPLS)-enabled Optical Burst Switched (OBS) network architecture featuring end-to-end QoS-aware burst transport services. This is achieved by setting up ...
  • A HW/SW codesign-based reconfigurable environment for telecommunication network simulation 

    Noguera, Juan José; Badia Sala, Rosa Maria; Domingo Pascual, Jordi; Solé Pareta, Josep (Springer, 1999)
    Part of book or chapter of book
    Restricted access - publisher's policy
    Sequential network simulation is a high time-consuming application, and with the emergence of global multihop networks and gigabit-per-second links is becoming a challenging problem. A new approach to this open problem is ...
  • A lightweight algorithm for traffic filtering over sliding windows 

    Sanjuàs Cuxart, Josep; Barlet Ros, Pere; Solé Pareta, Josep; Andriuzzi, Gabriella (2012)
    Conference report
    Restricted access - publisher's policy
    The problem of testing whether a packet belongs to a set of filtered addresses has been traditionally addressed using Bloom filters. They have a small memory footprint and require few memory accesses per query and insertion, ...
  • An analysis of Regenerator Placement strategies for a Translucent OBS network architecture 

    Pedrola Escribà, Òscar; Careglio, Davide; Klinkowski, Miroslaw; Solé Pareta, Josep (2010-09-28)
    External research report
    Open Access
    Most research works in optical burst switching (OBS) networks do not take into account the impact of physical layer impairments (PLIs) either by considering fully transparent (i.e., using optical 3R regeneration) or opaque ...
  • An autonomic traffic classification system for network operation and management 

    Carela Español, Valentín; Barlet Ros, Pere; Mulla Valls, Oriol; Solé Pareta, Josep (2015-07-01)
    Article
    Open Access
    Traffic classification is an important aspect in network operation and management, but challenging from a research perspective. During the last decade, several works have proposed different methods for traffic classification. ...
  • An interoperable GMPLS/OBS Control Plane: RSVP and OSPF extensions proposal 

    Pedroso, Pedro; Careglio, Davide; Casellas, Ramon; Klinkowski, Miroslaw; Solé Pareta, Josep (E. Leitgeb, W. Kogler, Z. Ghassemlooy, 2008-07-31)
    Conference report
    Open Access
    The GMPLS/OBS Control Plane is a bold research topic. Optical Burst Switching (OBS) networks need to be capable to be rapidly reconfigured with the aim of achieving an efficient use of bandwidth, low latency and high ...
  • A novel impairment aware RWA algorithm with consideration of QoT estimation inaccuracy 

    Azodolmolky, Siamak; Pointurier, Yvan; Angelou, Marianna; Careglio, Davide; Solé Pareta, Josep; Tomkos, Ioannis (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-04)
    Article
    Restricted access - publisher's policy
    In all-optical networks the physical layer impairments accumulate along a lightpath and also vary dynamically, and a number of impairment aware routing and wavelength assignment (IA-RWA) techniques have been proposed in ...
  • A novel offline physical layer impairments aware RWA algorithm with dedicated path protection consideration 

    Azodolmolky, Siamak; Klinkowski, Miroslaw; Pointurier, Yvan; Angelou, Marianna; Careglio, Davide; Solé Pareta, Josep; Tomkos, Ioannis (2010-10-15)
    Article
    Open Access
    Physical layer impairments accumulate as light propagates through a lightpath in the transparent optical networks. Therefore, it is possible to provision a lightpath, while its quality of transmission (QoT) does not meet ...
  • A performance overview of quality of service mechanisms in optical burst switching networks 

    Klinkowski, Miroslaw; Careglio, Davide; Solé Pareta, Josep; Marciniak, Marian (Springer, 2009-04-01)
    Part of book or chapter of book
    Restricted access - publisher's policy
    This Chapter addresses the problem of quality of service (QoS) provisioning in optical burst switching (OBS) networks. OBS is a photonic network technology aiming at efficient transport of IP traffic. The lack of optical ...
  • A performance survey on deflection routing techniques for OBS networks 

    Pedrola Escribà, Òscar; Rumley, Sébastien; Careglio, Davide; Klinkowski, Miroslaw; Pedroso, Pedro; Solé Pareta, Josep; Gaumier, Christian (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Open Access
    In this paper, we present a survey comparing different deflection routing based techniques applied to optical burst switching (OBS) networks. For such study we consider the E-OBS architecture proposed in [1] which is an ...
  • A practical approach to portscan detection in very high-speed links 

    Mikians, Jakub; Barlet Ros, Pere; Sanjuàs Cuxart, Josep; Solé Pareta, Josep (Springer Verlag, 2011)
    Conference report
    Restricted access - publisher's policy
    Port scans are continuously used by both worms and human attackers to probe for vulnerabilities in Internet facing systems. In this paper, we present a new method to efficiently detect TCP port scans in very high-speed ...
  • Aprendizaje cooperativo distribuido en base a Web 2.0 

    Santos Boada, Germán; Domingo Pascual, Jordi; Solé Pareta, Josep; Fumero, Antonio; Quemada Vives, Juan; Salvachúa, Joaquín; Casares Giner, Vicente; Vidal Català, José Ramón (2010)
    Conference report
    Open Access
    El modelo educativo que propugna la implantación del Espacio Europeo de Enseñanza Superior (EEES) propone desplazar el centro de gravedad del proceso de aprendizaje del profesor al estudiante, haciendo un especial hincapié ...
  • Area and laser power scalability analysis in photonic networks-on-chip 

    Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Lázaro Villa, José Antonio; Nemirovsky, Mario; Alarcón Cot, Eduardo José; Solé Pareta, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference lecture
    Restricted access - publisher's policy
    In the last decade, the field of microprocessor architecture has seen the rise of multicore processors, which consist of the interconnection of a set of independent processing units or cores in the same chip. As the number ...
  • A simulation study of combined routing and contention resolution algorithms in connection-oriented OPS network scenario 

    Klinkowski, Miroslaw; Careglio, Davide; Masip Bruin, Xavier; Spadaro, Salvatore; Sánchez López, Sergio; Solé Pareta, Josep (IEEE Press and Wiley, 2004-10-12)
    Conference report
    Open Access
    Connection-oriented optical packet-switched network integrates MPLS and OPS layers to exploit the best of electronic and optical technologies. In particular, routing components use enhanced routing algorithms to compute ...
  • Assessment of Flex-Grid/MCF optical networks with ROADM limited core switching capability 

    Rumipamba Zambrano, Rubén Darío; Moreno-Muro, F. J.; Pavón-Marino, Pablo; Perelló Muntan, Jordi; Spadaro, Salvatore; Solé Pareta, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Open Access
    The majority of the research studies on Flex-Grid over multi-core fiber (Flex-Grid/MCF) networks are built on the assumption of fully non-blocking ROADMs (FNB-ROADMs), able to switch any portion of the spectrum from any ...
  • A survey on physical layer impairments aware routing and wavelength assignment algorithms in optical networks 

    Azodolmolky, S; Klinkowski, Miroslaw; Marín Tordera, Eva; Careglio, Davide; Solé Pareta, Josep; Tomkos, Ioannis (2009-03)
    Article
    Restricted access - publisher's policy
    Optical networks are moving from opaque and translucnet architectures towards all-optical (transparent) architecutres. In translucent architectures a small amount of regeneration (e.g. optical-electronic-optical conversion) ...
  • A survey on web tracking: mechanisms, implications, and defenses 

    Bujlow, Tomasz; Carela Español, Valentín; Solé Pareta, Josep; Barlet Ros, Pere (2017-08-01)
    Article
    Open Access
    Privacy seems to be the Achilles' heel of today's web. Most web services make continuous efforts to track their users and to obtain as much personal information as they can from the things they search, the sites they visit, ...