Recent Submissions

  • VIA: A smart scratchpad for vector units with application to sparse matrix computations 

    Pavón Rivera, Julián; Vargas Valdivieso, Iván; Barredo Ferreira, Adrián; Marimon Illana, Joan; Moreto Planas, Miquel; Moll Echeto, Francisco de Borja; Unsal, Osman Sabri; Valero Cortés, Mateo; Cristal Kestelman, Adrián (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference report
    Open Access
    Sparse matrix operations are critical kernels in multiple application domains such as High Performance Computing, artificial intelligence and big data. Vector processing is widely used to improve performance on mathematical ...
  • Noise-induced Performance Enhancement of Variability-aware Memristor Networks 

    Ntinas, Vasileios; Fyrigos, Iosif; Sirakoulis, Georgios; Rubio Sola, Jose Antonio; Martin Martinez, Javier; Rodriguez, Rosana; Nafría Maqueda, Montserrat (2019)
    Conference report
    Restricted access - publisher's policy
    Memristor networks are capable of low-power, massive parallel processing and information storage. Moreover, they have widely used for a vast number of intelligent data analysis applications targeting mobile edge devices ...
  • Experimental investigation of memristance enhancement 

    Ntinas, Vasileios; Rubio Sola, Jose Antonio; Sirakoulis, Georgios; Rodriguez, Rosana; Nafría Maqueda, Montserrat (2019)
    Conference report
    Restricted access - publisher's policy
    Memristor devices are two-terminal nanoscale circuit elements that exhibit nonvolatile information storing and can be manufactured in ultra-dense arrays with low-power operation. Although, theoretically, memristors are ...
  • A 250-ps integrated ultra-wideband timed array beamforming receiver in 0.18 um CMOS 

    Aghazadeh Dafsari, Seyed Rasoul; Martínez García, Herminio; Aragonès Cervera, Xavier; Saberkari, Alireza (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference lecture
    Restricted access - publisher's policy
    This paper presents a 4-channel ultra-wideband (UWB) timed array beamforming receiver designed in a standard 0.18-um CMOS technology. The proposed timed array receiver achieves a maximum delay of 250 ps at the maximum beam ...
  • A memristor-based quaternary memory with adaptive noise tolerance 

    Dabaghi Zarandi, Arezoo; Rubio Sola, Jose Antonio; Reza Reshadinezhad, Mohammad (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Restricted access - publisher's policy
    Considering the constraints of CMOS technology progress at the nano-domain, memristor technology is one of the preferred alternatives to merge with and substitute CMOS-based memory circuits. At the same time to increase ...
  • An academic RISC-V silicon implementation based on open-source components 

    Abella Ferrer, Jaume; Bulla, Calvin; Cabo Pitarch, Guillem; Cazorla Almeida, Francisco Javier; Cristal Kestelman, Adrián; Doblas Font, Max; Figueras Bagué, Roger; González Trejo, Alberto; Hernández Luz, Carles; Hernández Calderón, César Alejandro; Jiménez Arador, Víctor; Kosmidis, Leonidas; Kostalabros, Ioannis-Vatistas; Langarita Benítez, Rubén; Leyva Santes, Neiel; López Paradís, Guillem; Marimon Illana, Joan; Martínez Martínez, Ricardo; Mendoza Escobar, Jonnatan; Moll Echeto, Francisco de Borja; Moreto Planas, Miquel; Pavón Rivera, Julián; Ramírez Lazo, Cristóbal; Ramírez Salinas, Marco Antonio; Rojas Morales, Carlos; Rubio Sola, Jose Antonio; Ruiz, Abraham Josafat; Sonmez, Nehir; Soria Pardos, Víctor; Teres Teres, Lluis; Unsal, Osman Sabri; Valero Cortés, Mateo; Vargas Valdivieso, Iván; Villa Vargas, Luis Alfonso (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    The design presented in this paper, called preDRAC, is a RISC-V general purpose processor capable of booting Linux jointly developed by BSC, CIC-IPN, IMB-CNM (CSIC), and UPC. The preDRAC processor is the first RISC-V ...
  • Effect of lattice defects on the transport properties of graphene nanoribbon 

    Rallis, Konstantinos; Dimitrakis, Panagiotis; Sirakoulis, Georgios; Karafyllidis, Ioannis; Rubio Sola, Jose Antonio (2019)
    Conference report
    Restricted access - publisher's policy
    Graphene nanoribbons are the most emerging graphene structures for electronic applications. Here, we present our calculation results on the impact of lattice defects on the transport properties of these structures. Preliminary ...
  • Linear, time-invariant model of the dynamics of a CMOS CC-CP 

    Palma Carmona, Kenneth; Moll Echeto, Francisco de Borja (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Open Access
    This paper presents the development of a linear dynamic model of a MOS Cross Coupled Charge Pump (CC-CP) suitable for low voltage energy harvesting systems in the form of a Discrete-Time State-Space set of equations ...
  • A pragmatic gaze on stochastic resonance based variability tolerant memristance 

    Ntinas, Vasileios; Rubio Sola, Jose Antonio; Sirakoulis, Georgios Ch.; Cotofana, Sorin (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Open Access
    Stochastic Resonance (SR) is a nonlinear system specific phenomenon, which was demonstrated to lead to system unexpected (counter-intuitive) performance improvements under certain noise conditions. Memristor, on the other ...
  • Wave computing with passive memristive networks 

    Fyrigos, Iosif; Ntinas, Vasileios; Sirakoulis, Georgios; Adamatzky, Andrew; Erokhin, Victor; Rubio Sola, Jose Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Open Access
    Since CMOS technology approaches its physical limits, the spotlight of computing technologies and architectures shifts to unconventional computing approaches. In this area, novel computing systems, inspired by natural and ...
  • Aging in CMOS RF linear power amplifiers: experimental comparison and modeling 

    Aragonès Cervera, Xavier; Mateo Peña, Diego; Barajas Ojeda, Enrique; Crespo-Yepes, A.; Rodríguez Martínez, Rosana; Martin Martínez, Javier; Nafría Maqueda, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    This paper characterizes experimentally the aging degradation experienced by two different 2.45 GHz power amplifier circuits of similar performance, implemented in a 65 nm CMOS technology. Results demonstrate the importance ...
  • On the variability-aware design of memristor-based logic circuits 

    Escudero López, Manuel; Vourkas, Ioannis; Rubio Sola, Jose Antonio; Moll Echeto, Francisco de Borja (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Ever since the advent of the first TiO 2 -based memristor and the respective linear model published by Hewlett-Packard Labs, several behavioral models of memristors have been published. Such models capture the fundamental ...

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