Now showing items 1-20 of 82

  • A graphene based plasmonic antenna design for communication in the THz regime 

    Suessmeier, Christoph; Schaeffer, Stephan; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Hosseininejad, Seyed Ehsan; Wigger, Anna K.; Stock, Daniel; Wagner, Stefan; Cabellos Aparicio, Alberto; Lemme, Max; Bolívar, Peter Haring (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference lecture
    Restricted access - publisher's policy
    We show the first THz emission of a graphene based plasmonic antenna structure. Furthermore we present the minimum material requirements for an operational graphene antenna in terms of chemical potential µc and relaxation time t.
  • ALLIANCE Project: Architecting a knowledge-defined 5G-enabled network infrastructure 

    Careglio, Davide; Spadaro, Salvatore; Cabellos Aparicio, Alberto; Lázaro Villa, José Antonio; Perelló Muntan, Jordi; Barlet Ros, Pere; Gené Bernaus, Joan M.; Paillissé Vilanova, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Leaving the current 4th generation of mobile communications behind, 5G will represent a disruptive paradigm shift integrating access networks, ultra-high capacity access/metro/core optical networks and intra-datacentre ...
  • A machine learning-based approach for virtual network function modeling 

    Mestres Sugrañes, Albert; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Recent trends in networking are proposing the use of Machine Learning (ML) techniques for the control and operation of the network. The application of ML to networking brings several use-cases as well as challenges. The ...
  • A MAC protocol for reliable broadcast communications in wireless network-on-chip 

    Mestres Sugrañes, Albert; Abadal Cavallé, Sergi; Torrellas, Josep; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2016)
    Conference report
    Restricted access - publisher's policy
    The Wireless Network-on-Chip (WNoC) paradigm holds considerable promise for the implementation of fast and efficient on-chip networks in manycore chips. Among other advantages, wireless communications provide natural ...
  • An analytical model for Loc/ID mappings caches 

    Coras, Florin-Tudorel; Domingo Pascual, Jordi; Lewis, Darrel; Cabellos Aparicio, Alberto (2016-02)
    Article
    Open Access
    Concerns regarding the scalability of the interdomain routing have encouraged researchers to start elaborating a more robust Internet architecture. While consensus on the exact form of the solution is yet to be found, the ...
  • An evolutionary path for the evolved packet system 

    Portoles Comeras, Marc; Mangues Bafalluy, Josep; Krendzel, Andrey; Requena Esteso, Manuel; Cabellos Aparicio, Alberto (2015-07-01)
    Article
    Open Access
    New architectural requirements appear with the evolution of mobile networks, such as the provisioning of multihoming or offloading. In general, this requires the design of ad hoc schemes on top of the EPS, which may be ...
  • A passive available bandwidth estimation methodology 

    Cabellos Aparicio, Alberto; Thompson, John; García, Francisco J.; Domingo Pascual, Jordi (2009-11-30)
    External research report
    Open Access
    The Available Bandwidth (AB) of an end-to-end path is its remaining capacity and it is an important metric for several applications such as overlay routing and P2P networking. That is why many AB estimation tools have been ...
  • 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 ...
  • Area model and dimensioning guidelines of multisource energy harvesting for nano-micro interface 

    Gomez Cid-Fuentes, Raül; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José (2016-02-01)
    Article
    Open Access
    Multisource energy harvesters are a promising, robust alternative to power the future Internet of Nano Things (IoNT), since the network elements can maintain their operation regardless of the fact that one of its energy ...
  • A vertical methodology for the design space exploration of graphene-enabled wireless communications 

    Abadal Cavallé, Sergi; Mestres Sugrañes, Albert; Llatser Martí, Ignacio; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2015)
    Conference report
    Restricted access - publisher's policy
    Graphene-based antennas (or shortly named, graphennas) are envisaged to be the cornerstone of novel wireless communication systems by virtue of their reduced size, in the micrometer range, and an expected radiation frequency ...
  • Broadcast-enabled massive multicore architectures: a wireless RF approach 

    Abadal Cavallé, Sergi; Sheinman, Benny; Katz, Oded; Markish, Ofer; Elad, Danny; Fournier, Yvan; Roca, Damian; Hanzich, Mauricio; Houzeaux, Guillaume; Nemirovsky, Mario; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (2015-09)
    Article
    Open Access
    Broadcast traditionally has been regarded as a prohibitive communication transaction in multiprocessor environments. Nowadays, such a constraint largely drives the design of architectures and algorithms all-pervasive in ...
  • Challenging the generalization capabilities of Graph Neural Networks for network modeling 

    Suárez-Varela Maciá, José Rafael; Carol Bosch, Sergi; Rusek, Krzysztof; Almasan Puscas, Felician Paul; Arias Vicente, Marta; Barlet Ros, Pere; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2019)
    Conference report
    Open Access
    Today, network operators still lack functional network models able to make accurate predictions of end-to-end Key Performance Indicators (e.g., delay or jitter) at limited cost. Recently a novel Graph Neural Network (GNN) ...
  • Channel characterization for chip-scale wireless communications within computing packages 

    Timoneda i Comas, Xavier; Cabellos Aparicio, Alberto; Manessis, Dionyssios; Alarcón Cot, Eduardo José; Abadal Cavallé, Sergi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Wireless Network-on-Chip (WNoC) appears as a promising alternative to conventional interconnect fabrics for chip-scale communications. WNoC takes advantage of an overlaid network composed by a set of millimeter-wave antennas ...
  • Characterization and modeling of multicast communication in cache-coherent manycore processors 

    Abadal Cavallé, Sergi; Martinez, Raul; Solé Pareta, Josep; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (2016-01-21)
    Article
    Open Access
    The scalability of Network-on-Chip (NoC) designs has become a rising concern as we enter the manycore era. Multicast support represents a particular yet relevant case within this context, mainly due to the poor performance ...
  • Circuit area optimization in energy temporal sparse scenarios for multiple harvester powered systems 

    Gomez Cid-Fuentes, Raül; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Multi-source energy harvesters are gaining interest as a robust alternative to power wireless sensors, since the sensor node can maintain its operation regardless of the fact that one of its energy sources might be temporarily ...
  • Computing and communications for the software-defined metamaterial paradigm: a context analysis 

    Abadal Cavallé, Sergi; Liaskos, Christos; Tsioliaridou, Ageliki; Ioannidis, Sotiris; Pitsillides, Andreas; Solé Pareta, Josep; Alarcón Gallo, Eduardo; Cabellos Aparicio, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2017-01-01)
    Article
    Open Access
    Metamaterials are artificial structures that have recently enabled the realization of novel electromagnetic components with engineered and even unnatural functionalities. Existing metamaterials are specifically designed ...
  • Decentralized trust in the inter-domain routing infrastructure 

    Paillissé Vilanova, Jordi; Manrique, Jan; Bonet, Guillem; Rodríguez Natal, Alberto; Maino, Fabio; Cabellos Aparicio, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
    Article
    Open Access
    Inter-domain routing security is of critical importance to the Internet since it prevents unwanted traffic redirections. The current system is based on a Public Key Infrastructure (PKI), a centralized repository of digital ...
  • Diffusion-based physical channel identification in molecular nanonetworks 

    Garralda, N.; Llatser Martí, Ignacio; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José; Pierobon, Massimiliano (2011-12)
    Article
    Restricted access - publisher's policy
    Nanonetworking is an emerging field of research at the intersection of nanotechnology and communication networks. Molecular Communication (MC) is a bio-inspired paradigm, where nanonetworks, i.e., the interconnection of ...
  • Energy buffer dimensioning through energy-erlangs in spatio-temporal-correlated energy-harvesting-enabled wireless sensor networks 

    Gomez Cid-Fuentes, Raül; Cabellos Aparicio, Alberto; Alarcón Gallo, Eduardo (2014-09-01)
    Article
    Restricted access - publisher's policy
    Energy-harvesting-enabled wireless sensor networks (EHE-WSN), despite their disruptive potential impact, still present several challenges precluding practical deployability. In particular, the low power density and random ...
  • Error analysis of programmable metasurfaces for beam steering 

    Taghvaee, Hamidreza; Cabellos Aparicio, Alberto; Georgiou, Julius; Abadal Cavallé, Sergi (2020-03-01)
    Article
    Open Access
    Recent years have seen the emergence of programmable metasurfaces, where the user can modify the electromagnetic (EM) response of the device via software. Adding reconfigurability to the already powerful EM capabilities ...