Now showing items 21-33 of 33

  • On the design of hybrid DRAM/SRAM memory schemes for fast packet buffers 

    García Vidal, Jorge; March Hermo, María Isabel; Cerdà Alabern, Llorenç; Corbal San Adrián, Jesús; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2004)
    Conference report
    Open Access
    We address the design of a packet buffer for future high-speed routers that support line rates as high as OC-3072 (160 Gb/s), and a high number of ports and service classes. We describe a general design for hybrid DRAM/SRAM ...
  • On the maximum performance in opportunistic routing 

    Cerdà Alabern, Llorenç; Darehshoorzadeh, Amir; Pla Boscà, Vicent (IEEE Computer Society Publications, 2010)
    Conference report
    Open Access
    In recent years there has been a growing interest in Opportunistic Routing as a way to increase the capacity of wireless networks by exploiting its broadcast nature. By contrast to traditional uni-path routing, in opportunistic ...
  • On the performance modeling of opportunistic routing 

    Cerdà Alabern, Llorenç; Pla Boscà, Vicent; Darehshoorzadeh, Amir (ACM Press. Association for Computing Machinery, 2010-02-22)
    Conference report
    Restricted access - publisher's policy
    In this paper we propose a discrete time Markov model to assess the improvement that may be achieved using opportunistic routing. We show that our model can be used to compute the probability distribution and moments of ...
  • Opportunistic routing in wireless mesh networks 

    Darehshoorzadeh, Amir; Cerdà Alabern, Llorenç; Pla Boscà, Vicent (Springer, 2013-05)
    Part of book or chapter of book
    Open Access
    Opportunistic Routing (OR) has been proposed as a way to increase the performance of wireless networks by exploiting its broadcast nature. In OR, instead of pre-selecting a single specific node to be the next-hop as a ...
  • Performance evaluation of a distributed storage service in community network clouds 

    Selimi, Mennan; Freitag, Fèlix; Cerdà Alabern, Llorenç; Veiga, Luis (Wiley, 2015-09-20)
    Article
    Open Access
    Community networks are self-organized and decentralized communication networks built and operated by citizens, for citizens. The consolidation of today's cloud technologies offers now, for community networks, the possibility ...
  • Practical service placement approach for microservices architecture 

    Selimi, Mennan; Cerdà Alabern, Llorenç; Sánchez Artigas, Marc; Freitag, Fèlix; Veiga, Luis (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Open Access
    Community networks (CNs) have gained momentum in the last few years with the increasing number of spontaneously deployed WiFi hotspots and home networks. These networks, owned and managed by volunteers, offer various ...
  • Securely-entrusted multi-topology routing for community networks 

    Neumann, Axel; López Berga, Ester; Cerdà Alabern, Llorenç; Navarro Moldes, Leandro (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    Routing in open and decentralized networks relies on coopera- tion despite the participation of unknown (alien) nodes and node administrators pursuing heterogeneous trust and security goals. Living use cases for such ...
  • Selected topics in opportunistic routing in wireless networks 

    Darehshoorzadeh, Amir; Cerdà Alabern, Llorenç (LAP LAMBERT Academic Publishing GmbH & Co. KG, 2012-11-09)
    Book
    Restricted access - publisher's policy
    Oportunistic Routing (OR) has been investigated in recent years as a way to increase the performance of Wireless Mesh Networks. In OR, in contrast to traditional routing, instead of pre-selecting a single specific node to ...
  • Should next generation wireless mesh networks consider dynamic channel access? 

    Amiri Nezhad, Maryam; Bellalta Jiménez, Boris; Guerrero Zapata, Manel; Cerdà Alabern, Llorenç (2012)
    Conference lecture
    Open Access
    In today’s computer architectures, many scientific applications are considered to be memory bound. The memory wall, i.e. the large disparity between a processor’s speed and the required time to access off-chip memory, ...
  • Simulación mediante TOPSIM IV de fading lognormal para radiocanales móviles terrestres 

    Cerdà Alabern, Llorenç; Delgado Penin, José Antonio (1994)
    Conference report
    Open Access
  • Traffic Management of the ABR. Service Category in ATM Networks 

    Cerdà Alabern, Llorenç (Universitat Politècnica de Catalunya, 2000-01-13)
    Doctoral thesis
    Open Access
    Data traffic has emerged as a big challenge for the standardization of traffic management mechanisms in ATM networks. In April 1996 the ATM Forum published the first version of the Available Bit Rate Service Category (ABR) ...
  • Xarxes de computadors : conceptes bàsics 

    Cerdà Alabern, Llorenç (Edicions UPC, 2006)
    Book
    Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
    Aquesta obra està basada en el contingut de l'assignatura Xarxes de Computadors, de la Facultat d'Informàtica de Barcelona (FIB) de la Universidat Politècnica de Catalunya, i té per objectiu introduir els conceptes bàsics ...
  • Xarxes de computadors : conceptes bàsics 

    Cerdà Alabern, Llorenç (Edicions UPC, 2007)
    Book
    Restricted access to the UPC academic community
    Aquesta obra està basada en el contingut de l'assignatura Xarxes de Computadors, de la Facultat d'Informàtica de Barcelona (FIB) de la Universidat Politècnica de Catalunya, i té per objectiu introduir els conceptes bàsics ...