Ara es mostren els items 1-20 de 78

  • 3G access network dimensioning in isolated rural areas based on femtocells 

    Olmo Alòs, Jaume del; Pascual Iserte, Antonio; Vidal Manzano, José; Muñoz Medina, Olga; Agustín de Dios, Adrián (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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    Based on the definition of the access network architecture and the forecast of voice and data traffic evolution, this paper derives engineering rules for radio network dimensioning of 3G femtocell-based access networks in ...
  • Adaptive block Diagonalization and user scheduling with out of cluster interferenced 

    García Fernández, Juan José; García Armada, Ana; Rubio López, Javier; Pascual Iserte, Antonio; Font Bach, Oriol; Bartzoudis, Nikolaos (2014)
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    Interference in a cellular network is one of the main impairments that needs to be overcome. Coordination among the Base Stations may enable the use of the interference to improve the transmission rate at the cost of ...
  • A maximum approach for robust MIMO design: combining OSTBC and beamforming with minimum transmission power requirements 

    Pascual Iserte, Antonio; Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (2004)
    Text en actes de congrés
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    In this paper we address the problem of the design of a transmitter in a Multi-Input-Multi-Output (MIMO) space diversity system. We consider a design which is robust to errors in the channel estimate available at the ...
  • Analysis of downlink and uplink decoupling in dense cellular networks 

    Aravanis, Alexios; Muñoz Medina, Olga; Pascual Iserte, Antonio; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    Decoupling uplink (UL) and downlink (DL) is a new architectural paradigm where DL and UL are not constrained to be associated to the same base station (BS). Building upon this paradigm, the goal of the present paper is to ...
  • 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)
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    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)
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    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)
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    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)
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    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 ...
  • A robust maximin approach for MIMO communications with imperfect channel state information based on convex optimization 

    Pascual Iserte, Antonio; Pérez Palomar, Daniel; Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (2006-01)
    Article
    Accés obert
    This paper considers a wireless communication system with multiple transmit and receive antennas, i.e., a multiple-input-multiple-output (MIMO) channel. The objective is to design the transmitter according to an imperfect ...
  • Array antennas for packet transmission networks 

    Pascual Iserte, Antonio; Ahmed, Nada; Pérez Neira, Ana Isabel (2002)
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    In the last two decades, adaptive antennas have been applied widely to wireless communication networks with preexisting infrastructure ,i.e networks with base stations. A wide variety of adaptive algorithms has been ...
  • A service-constrained positioning strategy for an autonomous fleet of airborne base stations 

    José Torra, Ferran; Pascual Iserte, Antonio; Vidal Manzano, José (Multidisciplinary Digital Publishing Institute (MDPI), 2018-10)
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    This paper proposes a positioning strategy for a fleet of unmanned aerial vehicles (UAVs) airlifting wireless base stations driven by communication constraints. First, two schedulers that model the distribution of resources ...
  • A stochastic approach for resource allocation with backhaul and energy harvesting constraints 

    Rubio López, Javier; Muñoz Medina, Olga; Pascual Iserte, Antonio (2016-07)
    Article
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    We propose a novel stochastic radio-resource-allocation strategy that achieves long-term fairness considering backhaul and air-interface capacity limitations. The base station (BS) is powered only with a finite battery ...
  • Asymptotic analysis of multiuser-MIMO networks with battery-constrained receivers 

    Rubio López, Javier; Pascual Iserte, Antonio; García Fernández, Juan José; García Armada, Ana; Font Bach, Oriol; Bartzoudis, Nikolaos (2014)
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    In this paper, we present an asymptotic analysis of the behavior of a network where the mobile terminals are considered to be battery-powered devices provided with energy harvesting capabilities. The asymptotic analysis ...
  • Channel state Information and joint transmitter-receiver design in multi-antenna systems 

    Pascual Iserte, Antonio (Universitat Politècnica de Catalunya, 2005-02-17)
    Tesi
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    Esta tesis aborda el problema del diseño de sistemas multiantena, donde el caso más general corresponde a un canal multi-input-multi-output (MIMO) con un transmisor y un receptor con más de una antena. La ventaja de estos ...
  • Characterization of the distortion of OFDM/OQAM modulations under frequency selective channels 

    Mestre Pons, Francesc X.; Sánchez Fernández, Matilde; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Comunicació de congrés
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    Filterbank based multicarrier modulations are well known to perform poorly in frequency selective channels when single tap carrier-by-carrier equalization is used. This degradation is cased by the inherent distortion ...
  • Closed-form capacity bounds for downlink and uplink decoupling 

    Aravanis, Alexios; Pascual Iserte, Antonio; Muñoz Medina, Olga (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
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    Downlink (DL) and uplink (UL) decoupling (DUDe) is a new architectural paradigm where DL and UL are not constrained to be associated to the same base station (BS). Thus, a user having access to multiple BSs within a dense ...
  • Convex optimization theory applied to joint transmitter-receiver design in MIMO channels 

    Palomar, Daniel P.; Pascual Iserte, Antonio; Cioffi, John M.; Lagunas Hernandez, Miguel A. (John Wiley & Sons, 2005-04-30)
    Capítol de llibre
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  • Coordinated MIMO precoding for power minimization in femtocell systems 

    Muñoz Medina, Olga; Vidal Manzano, José; Agustín de Dios, Adrián; Pascual Iserte, Antonio; Barbarossa, Sergio (IEEE, 2011)
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  • D13.1 Fundamental issues on energy- and bandwidth-efficient communications and networking 

    Zalonis, Andreas; Polydoros, Andreas; Pascual Iserte, Antonio; Gregori, Maria; Rubio López, Javier; Fosson, Sophie; Matamoros, Javier; Antón Haro, Carles; Zambianchi, Vincenzo; Dardari, Davide; Bassi, Francesca; Chaini, Marco; Duhamel, Pierre; Kieffer, Michel; Karasan, Ezhan; Koseoglu, Mehmet; Chen, Lin; Gomez Viladerbó, Jesús; Kliks, Adrian; Kryszkiewicz, Pawel; Bogucka, Hanna; Oliveira, Carla; Mackowiak, Michal; Correia, Luis M.; Louet, Yves; Zhang, Honggang; Caus, Marius; Pérez Neira, Ana Isabel; Sanguinetti, Luca; Boukhatem, Lila; Martin, Steven; Ali Yahiya, Tara; Pérez Romero, Jordi; Koutlia, Katerina; Agustí Comes, Ramon; Dimitriou, Nikos; Stupia, Ivan; Vanderdorpe, Luc; Bacci, Giacomo; Andreotti, Ricardo; Giannetti, Filipo; Lottici, Vincenzo; del Fiorentino, Paolo; Belmega, Veronica; Lasaulce, Samson; Giupponi, Lorenza; Verdone, Roberto; Abrignani, Melchiorre Danilo (2014-03)
    Report de recerca
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    The report presents the current status in the research area of energy- and bandwidth-efficient communications and networking and highlights the fundamental issues still open for further investigation. Furthermore, the ...
  • D13.2 Techniques and performance analysis on energy- and bandwidth-efficient communications and networking 

    Zalonis, Andreas; Polydoros, Andreas; Rubio López, Javier; Pascual Iserte, Antonio; Gregori, Maria; Payaró, Miquel; Abrignani, Melchiorre D.; Giupponi, Lorenza; Cichon, Krzysztof; Louet, Yves; Nafka, Amor; Caus López, Marius; Pérez Neira, Ana Isabel; Mackowiak, Michal; Beko, Marko; Oliveira, Carla; Correia, Luis M.; Moretti, Marco; Pérez Romero, Jordi; Koutlia, Aikaterini; Agustí Comes, Ramon; Kliks, Adrian; Kryszkiewicz, Pawel; Bogucka, Hanna; Boukhatem, Lila; del Fiorentino, Paolo; Andreotti, Ricardo; Giannetti, Filipo; Lottici, Vincenzo; Van Hecke, Jeroen; Moeneclaey, Marc; Koseoglu, Mehmet; Karasan, Ezhan; Chen, Lin; Bacci, Giacomo; Belmega, Veronica; Debbah, Mérouane; Mertikopoulos, Panayotis; Sanguinetti, Luca; Stupia, Ivan; Vandendorpe, Luc; Bassi, Francesca; Kieffer, Michel (2014-10)
    Report de recerca
    Accés obert
    The report presents the status of the research work of the various Joint Research Activities (JRA) in WP1.3 and the results that were developed up to the second year of the project. For each activity there is a description, ...