Now showing items 1-14 of 14

  • A real-time FPGA-based implementation of a high-performance MIMO-OFDM mobile WiMAX transmitter 

    Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; López Bueno, David (2011)
    Conference report
    Open Access
    The Multiple Input Multiple Output (MIMO)-Orthogonal Frequency Division Multiplexing (OFDM) is considered a key technology in modern wireless-access communication systems. The IEEE 802.16e standard, also denoted as ...
  • A real-time FPGA-based implementation of a high-performance MIMO-OFDM transceiver featuring a closed-loop communication scheme 

    Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; López Bueno, David (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    In this paper we present the FPGA implementation of a multi-antenna Orthogonal Frequency-Division Multiplexing (OFDM) transmitter and receiver featuring a closed-loop (CL) communication scheme. The PHY-layer development ...
  • A real-time FPGA-based mobile WiMAX transceiver supporting multi-antenna configurations 

    Bartzoudis, Nikolaos; Font Bach, Oriol; Pascual Iserte, Antonio; López Bueno, David (IEEE, 2011)
    Conference report
    Restricted access - publisher's policy
    This paper presents the design, implementation and experimental validation of a real-time FPGA-based mobile WiMAX baseband transceiver. Three different antenna configuration schemes were implemented and tested, namely ...
  • A real-time MIMO-OFDM mobile WiMAX receiver: architecture, design and FPGA implementation 

    Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; López Bueno, David (2011-11)
    Article
    Restricted access - publisher's policy
    The IEEE 802.16e-2005 standard, also denoted as mobile WiMAX, was introduced as one of the first real efforts towards the deployment of fourth generation communication systems providing fixed and mobile broadband wireless ...
  • Amping up, saving power 

    López Bueno, David; Wang, Teng; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (2016-01-01)
    Article
    Open Access
    Fourth-generation (4G) communication systems based on orthogonal frequency division multiplexing (OFDM) and the proposed backwards compatible fifth-generation (5G) variants, like filter-bank multicarrier (FBMC), are based ...
  • Design, implementation and testing of a real-time mobile WiMAX testbed featuring MIMO technology 

    Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; López Bueno, David (2010-05)
    Conference lecture
    Open Access
  • Gedomis: un testbed multi-antenna en temps real 

    Font Bach, Oriol; López Bueno, David; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; Pérez Neira, Ana Isabel (2008-06)
    Article
    Restricted access - publisher's policy
    Els sistemes multi-antena són una solució tecnològica viable cada cop més present als estàndards de sistemes ràdio actuals. Aquí presentem el demostrador Gedomis en procés de desenvolupament per provar la viabilitat ...
  • Interference management in LTE-based HetNets: a practical approach 

    Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; Payaró Llisterri, Miquel; Blanco, Luis; López Bueno, David; Molina Pena, Marc (Wiley-Blackwell, 2015)
    Article
    Open Access
    Interference is a major obstacle in radio communications, especially when opportunistic frequency reuse is an inherent requirement for maximising spectral ef¿ciency in heterogeneous networks. A typical example is encountered ...
  • MATLAB as a design and verification tool for the hardware prototyping of wireless communication systems 

    Font Bach, Oriol; Pascual Iserte, Antonio; Bartzoudis, Nikolaos; López Bueno, David (InTech, 2012-09)
    Part of book or chapter of book
    Open Access
  • Peak cancellation and digital predistortion of high-order QAM wideband signals for next generation wireless backhaul equipment 

    López Bueno, David; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bartzoudis, Nikolaos (2014)
    Conference report
    Restricted access - publisher's policy
    This paper evaluates the linearity performance in a wideband wireless backhaul transmitter when applying crest factor reduction (CFR) and digital predistortion (DPD) techniques to enhance the transmitted output power, and ...
  • Prototyping processing-demanding physical layer systems featuring single or multi-antenna schemes 

    Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; López Bueno, David (2011)
    Conference lecture
    Restricted access - publisher's policy
    In the past years numerous algorithms, schemes and techniques have been proposed, in order to improve the performance of the wireless multi-antenna communication systems. Real-time multi-antenna testbeds are offering ...
  • Reducción de factor de cresta y predistorsión digital de señales QAM de banda ancha para equipos backhaul de próxima generación 

    López Bueno, David; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bartzoudis, Nikolaos; Payaró Llisterri, Miquel (Unión Científica Internacional de Radio (URSI), 2015)
    Conference report
    Restricted access - publisher's policy
    This paper evaluates the linearity performance in a wideband wireless backhaul transmitter when applying crest factor reduction (CFR) and digital predistortion (DPD) techniques to enhance the transmitted output power, ...
  • Reducción de la frecuencia de muestreo en los conversores ADC y DAC usados en predistorsionadores digitales 

    Montoro López, Gabriel; Wang, Teng; López Bueno, David; Ruiz, María Nieves; García, José Angel; Gilabert Pinal, Pere Lluís (Unión Científica Internacional de Radio (URSI), 2015)
    Conference report
    Restricted access - publisher's policy
    With the increasing demands for higher data rate, wider signal bandwidth is required, and this imposes high sampling rate converters in the communications equipment. This paper provides and analyzes experimental results ...
  • SofTOA: software ranging for TOA-based positioning of WLAN terminals 

    Ciurana Adell, Marc; López Bueno, David; Barceló Arroyo, Francisco (Springer Verlag, 2009)
    Conference report
    Restricted access - publisher's policy
    TOA-based trilateration constitutes an interesting choice to locate terminals employing WLAN networks. A major limitation of this technique is the requirement for hardware modifications in the WLAN device in order to achieve ...