Now showing items 1-20 of 69

    • A general, fault tolerant, adaptive, deadlock-free routing protocol for network-on-chip 

      Stroobant, Pieter; Abadal Cavallé, Sergi; Tavernier, Wouter; Alarcón Cot, Eduardo José; Colle, Didier; Pickavet, Mario (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      The paper presents a topology-agnostic greedy protocol for network-on-chip routing. The proposed routing algorithm can tolerate any number of permanent faults, and is proven to be deadlock-free. We introduce a specialized ...
    • 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.
    • 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 ...
    • 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 ...
    • ABSense: sensing electromagnetic waves on metasurfaces via ambient compilation of full absorption 

      Liaskos, Christos; Pyrialakos, Georgios; Pitilakis, Alexandros; Abadal Cavallé, Sergi; Tsioliaridou, Ageliki; Tasolamprou, Anna; Tsilipakos, Odysseas; Kantartzis, Nikolaos V.; Ioannidis, Sotiris; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto; Kafesaki, Maria; Pitsillides, Andreas; Kossifos, Kypros; Georgiou, Julius; Akyildiz, Ian (Association for Computing Machinery (ACM), 2019)
      Conference report
      Open Access
      Metasurfaces (MS) constitute effective media for manipulating and transforming impinging EM waves. Related studies have explored a series of impactful MS capabilities and applications in areas such as wireless communications, ...
    • Analysis of a plasmonic graphene antenna for microelectronic applications 

      Suessrneier, C.; Thiel, F.; Wigger, Anna K.; Bolívar, Peter Haring; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Cabcllos Aparicio, A.; Banszcrus, L.; Stampfer, C.; Lemme, M. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Graphene offers a large potential to downscale antennas to the micrometer scale, due to its special dispersion relation and its ability to support plasmons in the THz frequency range. For an adequate performance of the ...
    • Architecting a secure wireless network-on-chip 

      Lebiednik, Brian; Abadal Cavallé, Sergi; Kwon, Hyoukjun; Krishna, Tushar (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      With increasing integration in SoCs, the Network-on-Chip (NoC) connecting cores and accelerators is of paramount importance to provide low-latency and high-throughput communication. Due to limits to scaling of electrical ...
    • 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 ...
    • Automata Modeling of Quorum Sensing for Nanocommunication Networks 

      Abadal Cavallé, Sergi (Universitat Politècnica de Catalunya, 2010-07-06)
      Master thesis (pre-Bologna period)
      Open Access
      Nanotechnology is enabling the development of devices in a scale ranging one to hundreds of nanometers. Communication between these devices underlying in the nanoscale greatly expands the possible applications, increasing ...
    • 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 ...
    • Broadcast-oriented wireless network-on-chip : fundamentals and feasibility 

      Abadal Cavallé, Sergi (Universitat Politècnica de Catalunya, 2016-07-15)
      Doctoral thesis
      Open Access
      Recent years have seen the emergence and ubiquitous adoption of Chip Multiprocessors (CMPs), which rely on the coordinated operation of multiple execution units or cores. Successive CMP generations integrate a larger number ...
    • 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 ...
    • 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 ...
    • Cooperative signal amplification for molecular communication in nanonetworks. 

      Abadal Cavallé, Sergi (Universitat Politècnica de Catalunya, 2011-09-19)
      Master thesis
      Open Access
      English: Nanotechnology is enabling the development of devices in a scale ranging from a few to hundreds of nanometers. Communication between these devices greatly expands the possible applications, increasing the complexity ...
    • Data conversion in area-constrained applications: the wireless network-on-chip case 

      Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José
      Conference report
      Restricted access - publisher's policy
      Network-on-Chip (NoC) is currently the paradigm of choice to interconnect the different components of System-on-Chips (SoCs) or Chip Multiprocessors (CMPs). As the levels of integration continue to grow, however, current ...
    • Dataflow-architecture co-design for 2.5D DNN accelerators using wireless network-on-package 

      Guirado Liñan, Robert; Kwon, Hyoukjun; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Krishna, Tushar (Association for Computing Machinery (ACM), 2021)
      Conference report
      Open Access
      Deep neural network (DNN) models continue to grow in size and complexity, demanding higher computational power to enable real-time inference. To efficiently deliver such computational demands, hardware accelerators are ...
    • Digital metasurface based on graphene: An application to beam steering in terahertz plasmonic antennas 

      Hosseininejad, Seyed Ehsan; Rouhi, Kasra; Neshat, Mohammad; Cabellos Aparicio, Alberto; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José (2019-06-25)
      Article
      Open Access
      Metasurfaces, the two-dimensional counterpart of metamaterials, have caught great attention thanks to their powerful capabilities on manipulation of electromagnetic waves. Recent times have seen the emergence of a variety ...
    • Engineer the channel and adapt to it: enabling wireless intra-chip communication 

      Timoneda, Xavier; Abadal Cavallé, Sergi; Franques, Antonio; Manessis, Dionyssios; Zhou, Jin; Torrellas, Josep; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (2020-05-01)
      Article
      Open Access
    • 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 ...