Now showing items 1-20 of 26

  • An ant-based algorithm for distributed routing and wavelength assignment in dynamic optical networks 

    Triay Marquès, Joan; Cervelló Pastor, Cristina (2010-05)
    Article
    Open Access
    Future optical communication networks are expected to change radically during the next decade. To meet the demanded bandwidth requirements, more dynamism, scalability and automatism will need to be provided. This will ...
  • An Ant-based Algorithm for Distributed RWA in Optical Burst Switching 

    Triay Marquès, Joan; Cervelló Pastor, Cristina (IEEE, 2009-06-28)
    Conference lecture
    Open Access
    To meet the demanded bandwidth requirements of future optical communication networks, more dynamism, scalability and automatism will need to be provided, which will require, as well, new control plane designs to respond ...
  • An Optical Burst Switching Control Plane Architecture and its Implementation 

    Triay Marquès, Joan; Rubio, Jesús; Cervelló Pastor, Cristina (2006-09-18)
    Conference lecture
    Open Access
    This paper proposes a new design and implementation of a control plane for Optical Burst Switched networks. The design is based on the principles of generality, transparency, portability and efficiency. In this way, the ...
  • Analytical blocking probability model for hybrid immediate and advance reservations in optical WDM networks 

    Triay Marquès, Joan; Cervelló Pastor, Cristina; Vokkarane, Vinod M. (2013)
    Article
    Restricted access - publisher's policy
    Immediate reservation (IR) and advance reservation (AR) are the two main reservation mechanisms currently implemented on large-scale scientific optical networks. They can be used to satisfy both provisioning delay and low ...
  • Analytical model for hybrid immediate and advance reservation in optical WDM networks 

    Triay Marquès, Joan; Cervelló Pastor, Cristina; Vokkarane, Vinod M. (IEEE, 2011)
    Conference lecture
    Restricted access - publisher's policy
    Current Internet and large-scale experimentation applications need to satisfy short provisioning delay and low blocking demands. Both can be guaranteed by using immediate reservation (IR) and advance reservation (AR), ...
  • Architectures and protocols for sub-wavelength optical networks: contributions to connectionless and connection-oriented data transport 

    Triay Marquès, Joan (Universitat Politècnica de Catalunya, 2011-10-07)
    Doctoral thesis
  • Construcció d'una maqueta de xarxa OBS. Disseny i Implementació del Pla de Control 

    Triay Marquès, Joan (Universitat Politècnica de Catalunya, 2006-09)
    Master thesis (pre-Bologna period)
    Open Access
    Aquest document presenta el disseny i la implementació del Pla de Control d’una xarxa de Commutació de Ràfegues Òptiques (OBS, Optical Burst Switching). En aquests tipus de xarxes, les dades d’usuari s’ensamblen en ràfegues ...
  • Delay analysis of slotted OBS networks under DAOBS MAC protocol 

    Triay Marquès, Joan; Cervelló Pastor, Cristina (2011-06-30)
    Article
    Restricted access - publisher's policy
    Medium access control (MAC) protocols can improve the burst/packet delivery rate in optical burst-switched (OBS) networks. In this letter, the delay analysis of slotted OBS under the use of the DAOBS MAC protocol is proposed. ...
  • Demonstration of C/S based hardware accelerated QoT estimation tool in dynamic impairment-aware optical network 

    Simeonidou, Dimitra; Nejabati, Reza; Qin, Yixuan; Cheng, Kevin C.S.; Triay Marquès, Joan; Escalona, Eduard; Zervas, Georgios S.; Zarris, George; Amaya González, Norberto; Cervelló Pastor, Cristina (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Open Access
    An enhanced version of hardware accelerated QoT estimation tool in impairment-aware optical network is demonstrated and evaluated against the different number of lightpaths and wavelengths per link. It outperforms the ...
  • Distributed Contention Avoidance in Optical Burst-Switched Ring Networks 

    Triay Marquès, Joan; Cervelló Pastor, Cristina (IEEE, 2008-11)
    Conference lecture
    Open Access
    Optical Burst Switching (OBS) is a promising technology for future optical networks. Due to its less complicated implementation using current optical and electrical components, OBS is seen as the first step towards the ...
  • Distributed Resources Assignment for Optical Burst Switching without Wavelength Conversion (Invited Paper) 

    Cervelló Pastor, Cristina; Triay Marquès, Joan; Sallent Ribes, Sebastián (2009-09)
    Conference report
    Open Access
    The amount of bursty Internet traffic leads to develop new architectures and technologies, such as Optical Burst Switching (OBS), to efficiently satisfy future bandwidth requirements. Burst loss probability is an important ...
  • Dynamic anycast routing and wavelength assignment in WDM networks using ant colony optimization (ACO) 

    Bhaskaran, Kavitha; Triay Marquès, Joan; Vokkarane, Vinod M. (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
    Conference lecture
    Restricted access - publisher's policy
    Ant colony optimization (ACO) is a probabilistic technique used for solving complex computational problems, such as finding optimal routes in networks. It has been proved to perform better than simulated annealing and ...
  • Dynamic service-aware reservation framework for multi-layer high-speed networks 

    Triay Marquès, Joan; Rousseau, Derek R.; Cervelló Pastor, Cristina; Vokkarane, Vinod M. (2011)
    Conference report
    Restricted access - publisher's policy
    Some current Internet applications (e.g., Grid/Cloud computing storage, video-conference) demand service differentiation, not only in terms of packet forwarding, but also at the connection level. To satisfy the demands ...
  • Experimental demonstration of a novel QoS-aware hybrid optical network 

    Simeonidou, Dimitra; Escalona, Eduard; Qin, Yixuan; Zervas, Georgios; Triay Marquès, Joan; Zarris, George; Amaya González, Norberto; Nejabati, Reza; Cervelló Pastor, Cristina (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Open Access
    This paper presents a hybrid optical test-bed controlled by a hardware-accelerated control plane capable of dynamically provisioning the most suitable route according to the requirements of the client technology and the ...
  • Experimental demonstration of a self-optimised multi-bit-rate optical network 

    Simeonidou, Dimitra; Zervas, Georgios S.; Zarris, George; Amaya González, Norberto; Triay Marquès, Joan; Escalona, Eduard; Qin, Yixuan; Cervelló Pastor, Cristina; Nejabati, Reza (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Open Access
    This paper proposes an innovative self-managed optical network architecture for heterogenous transparent optical networks. A self-optimized dynamic network testbed that comprises multiple multi bit-rate ligthpaths on a ...
  • GMPLS/PCE/OBST architectures for guaranteed sub-wavelength mesh metro network services 

    Triay Marquès, Joan; Zervas, Georgios S.; Cervelló Pastor, Cristina; Simeonidou, Dimitra (2011)
    Conference lecture
    Open Access
    This paper presents three innovative GMPLS/PCE/OBST interworking architectures for mesh metro networks which deliver guaranteed contention-free sub-wavelength services with enhanced channel utilization, yet enabling ...
  • Integration of Optical and Wireless Technologies in the Metro-Access: QoS Support and Mobility Aspects 

    Cervelló Pastor, Cristina; Sallent Ribes, Sebastián; Gutiérrez González, Lluís; Remondo Bueno, David; Nunes, Mario; Sargento, Susana; Cesana, Matteo; Filippini, Ilario; Triay Marquès, Joan; Agustí Torra, Anna; Andrade Jardín, Marilet de (2009-07)
    Conference lecture
    Open Access
  • Multi-service MAC-enabled OBS networks 

    Triay Marquès, Joan; Zervas, Georgios; Cervelló Pastor, Cristina; Nejabati, Reza; Simeonidou, Dimitra (2010-03)
    Conference lecture
    Restricted access - publisher's policy
    In this paper, a novel multi-service architectural solution based on a MAC protocol for mesh OBS networks is designed and the network performance among TDM services and connectionless burst transmissions is evaluated through ...
  • Multiservice QoS-enabled MAC for optical burst switching 

    Triay Marquès, Joan; Zervas, Georgios S.; Cervelló Pastor, Cristina; Simeonidou, Dimitra (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-07-14)
    Article
    Open Access
    The emergence of a broad range of network-driven applications (e.g., multimedia, online gaming) brings in the need for a network environment able to provide multiservice capabilities with diverse quality-of-service (QoS) ...
  • On Avoiding-Minimizing Burst Collisions in Optical Burst-Switched Networks without Wavelength Conversion 

    Triay Marquès, Joan; Perelló Muntan, Jordi; Cervelló Pastor, Cristina; Spadaro, Salvatore (IEEE, 2009-06-28)
    Conference lecture
    Open Access
    In this paper, a new MAC protocol for OBS networks is introduced, described and evaluated. Into operation, DAOBS avoids burst collisions in the core of the network by controlling the way OBS nodes access the optical channel. ...