Recent Submissions

  • Implementation of GNSS receiver hardware accelerators in all-programmable system-on-chip platforms 

    Majoral Ramoneda, Marc; Fernandez Prades, Carles; Arribas Lázaro, Javier (ION Publications (The Institute of navigation), 2018)
    Conference report
    Restricted access - publisher's policy
    This paper reports the design and proof-of-concept implementation of hardware accelerator modules for a low power consumption and small form factor software-defined GNSS receiver using an all-programmable System-On-Chip ...
  • Orbit determination for hydroterra mission. An interferometric approach 

    Broquetas Ibars, Antoni; Nicolás Álvarez, Jorge; Carreño Megias, Xavier; Fusté i Lara, Oriol; Aguasca Solé, Alberto (European Space Agency (ESA), 2019)
    Conference lecture
    Restricted access - publisher's policy
  • Combining subword representations into word-level representations in the transformer architecture 

    Casas Manzanares, Noé; Ruiz Costa-Jussà, Marta; Rodríguez Fonollosa, José Adrián (Association for Computational Linguistics, 2020)
    Conference lecture
    Open Access
    In Neural Machine Translation, using word-level tokens leads to degradation in translation quality. The dominant approaches use subword-level tokens, but this increases the length of the sequences and makes it difficult ...
  • Joint consideration of content popularity and size in device-to-device caching scenarios 

    Kollias, Georgios; Antonopoulos, Angelos (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    Content caching has been considered by both academia and industry as an efficient solution to tackle the problem of the back-haul becoming the bottleneck in the service of users in future heterogeneous cellular networks. ...
  • Array-geometry invariant signaling for MISO feedforward opportunistic communications 

    Borràs Pino, Jordi; Vázquez Grau, Gregorio (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    The impact of antenna array geometry on scenario- aware invariant signaling is studied in the context of feedforward opportunistic communications. Invariance plays an elemental role to guarantee the detectability in ...
  • A new mode selection and resource reuse strategy for V2X in future cellular networks 

    Albonda, Haider Daami Resin; Pérez Romero, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    Recently, vehicle-to-vehicle (V2V) communications for future cellular systems have attracted considerable attention due to their potential benefits such as improved system capacity, spectral efficiency or delay reduction, ...
  • Energy allocation for short-packet massive multiple access with two-iteration successive decoding 

    Molina Oliveras, Francesc; Sala Álvarez, José (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    An optimum energy allocation for massive user networks operating under iterative successive interference cancellation (I-SIC) is derived in this work. We analyze an uplink setting where a large network of cost-effective ...
  • Cross-modal neural sign language translation 

    Cardoso Duarte, Amanda (Association for Computing Machinery (ACM), 2019)
    Conference report
    Open Access
    Sign Language is the primary means of communication for the majority of the Deaf and hard-of-hearing communities. Current computational approaches in this general research area have focused specifically on sign language ...
  • A software-defined spaceborne GNSS receiver 

    Fernandez Prades, Carles; Arribas Lázaro, Javier; Majoral Ramoneda, Marc; Ramos, Antonio; Vila Valls, Jordi; Giordano, Pietro (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    This paper reports the design, proof-of-concept implementation and preliminary performance assessment of a low-cost, software-defined spaceborne GNSS receiver. The presented approach takes advantage of the flexibility of ...
  • Real-time dynamic network slicing for the 5G radio access network 

    Maule, Massimiliano; Mekikis, Prodromos Vasileios; Ramantas, Kostas; Vardakas, John; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    The 5G networks are expected to satisfy diverse use cases and business models with significant advancements in terms of capacity, reliability, and latency. The allocation and provisioning of network resources pose a challenge ...
  • Automatic Spanish translation of SQuAD dataset for multi-lingual question answering 

    Carrino, Casimiro Pio; Ruiz Costa-Jussà, Marta; Rodríguez Fonollosa, José Adrián (European Language Resources Association (ELRA), 2020)
    Conference lecture
    Open Access
    Recently, multilingual question answering became a crucial research topic, and it is receiving increased interest in the NLP community.However, the unavailability of large-scale datasets makes it challenging to train ...
  • On the prediction of future user connections based on historical records in wireless networks 

    Shaabanzadeh, Seyedeh Soheila; Sánchez González, Juan (2020)
    Conference report
    Restricted access - publisher's policy
    Recent developments of data monitoring and analytics technologies in the context of wireless networks will boost the capacity to extract knowledge about the network and the users. On the one hand, the obtained knowledge ...

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