Now showing items 1-20 of 25

  • 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)
    Conference report
    Restricted access - publisher's policy
    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 stochastic approach for resource allocation with backhaul and energy harvesting constraints 

    Rubio López, Javier; Muñoz Medina, Olga; Pascual Iserte, Antonio (2016-07)
    Article
    Open Access
    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)
    Conference report
    Restricted access - publisher's policy
    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 ...
  • 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)
    External research report
    Open Access
    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)
    External research report
    Open Access
    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, ...
  • D13.3 Overall assessment of selected techniques on energy- and bandwidth-efficient communications 

    Zalonis, Andreas; Polydoros, Andreas; Dagres, Ioannis; Rubio López, Javier; Gregori, Maria; Pascual Iserte, Antonio; Payaró Llisterri, Miquel; Gomez Viladerbó, Jesús; Kieffer, Michel; Bassi, Francesca; Abrignani, Melchiorre D.; Giupponi, Lorenza; Kliks, Adrian; Kryszkiewicz, Pawel; Bogucka, Hanna; Caus, Marius; Pérez Neira, Ana Isabel; Bader, Carlos; Bodinier, Quentin; del Fiorentino, Paolo; Giannetti, Filipo; Lottici, Vincenzo; Van Hecke, Jeroen; Moeneclaey, Marc; Pérez Romero, Jordi; Koutlia, Katerina; Agustí Comes, Ramon; Abdelkader, Abdelrahman; Koseoglu, Mehmet; Karasan, Ezhan; Chen, Lin (2015-10)
    External research report
    Open Access
    The report presents the outcome of the Joint Research Activities (JRA) of WP1.3 in the last year of the Newcom# project. The activities focus on the investigation of bandwidth and energy efficient techniques for current ...
  • Design and implementation of a cognitive node for heterogeneous wireless ad-hoc 

    Serra Company, Fernando; López González, Javier; Ibáñez Vaquez, David; Rubio López, Javier (Universitat Politècnica de Catalunya, 2010-07-09)
    Master thesis (pre-Bologna period)
    Open Access
    In this thesis, the design of a cognitive network layer solution for a scenario with mobile devices is presented. Cognitive networks are able to sense the environment and adapt in order to find the best performance of the ...
  • Dynamic base station switch on/off strategies for sustainable wireless networks 

    Rubio López, Javier; Pascual Iserte, Antonio; Olmo Alòs, Jaume del; Vidal Manzano, José (2014)
    Conference lecture
    Restricted access - publisher's policy
    In this paper, we present a procedure for switching on and off base stations (BSs) that are powered with solar panels and have finite batteries. In the scenario under consideration it is considered that the BSs are placed ...
  • Energy-aware broadcast multiuser-MIMO precoder design with imperfect channel and battery knowledge 

    Rubio López, Javier; Pascual Iserte, Antonio (2014-06)
    Article
    Restricted access - publisher's policy
    This paper addresses the problem of resource allocation and precoder design in a multiuser MIMO broadcast system where the terminals are battery-powered devices provided with energy harvesting capabilities. Energy harvesting ...
  • Energy-aware broadcast MU-MIMO precoder design with imperfect battery knowledge 

    Rubio López, Javier; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    This paper addresses the problem of precoder design in a MIMO broadcast scenario where the terminals are battery-powered devices provided with energy harvesting capabilities. Models for the power consumption of the RF ...
  • Energy-aware user scheduling for downlink multiuser-MIMO systems 

    Rubio López, Javier; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    In this paper we address the problem of designing a user selection algorithm in a multiuser multiple-input multipleoutput downlink scenario. Linear precoding is adopted at the transmitter and, thus, the number of users ...
  • Energy-efficient dynamic resource allocation with energy harvesting nodes 

    Rubio López, Javier (Universitat Politècnica de Catalunya, 2012-07-25)
    Master thesis
    Open Access
    [ANGLÈS] In wireless communications, there is a trend to deploy shorter-distance networks to cope with the high demanding necessities of bit-rate that current applications require. In such networks, the power needed for ...
  • Energy-efficient resource allocation techniques for battery management with energy harvesting nodes: A practical approach 

    Rubio López, Javier; Pascual Iserte, Antonio; Payaró, Miquel (2013)
    Conference report
    Restricted access - publisher's policy
    This paper addresses the problem of resource allocation in a broadcast scenario with frequency selective channels where the terminals are considered to be batterypowered devices provided with energy harvesting capabilities. ...
  • Energy-efficient resource allocation techniques for battery management with energy harvesting nodes: A theoretical approach 

    Rubio López, Javier; Pascual Iserte, Antonio (2013)
    Conference report
    Restricted access - publisher's policy
    This paper addresses the problem of radio resource allocation in a multi-user broadcast downlink flat-fading channel, where the receiving nodes are considered to be battery-powered devices provided with energy harvesting ...
  • Energy profiling of FPGA-based PHY-layer building blocks encountered in modern wireless communication systems 

    Bartzoudis, Nikolaos; Font Bach, Oriol; Payaró Llisterri, Miquel; Pascual Iserte, Antonio; Rubio López, Javier; García Fernández, Juan José; García Armada, Ana (2014)
    Conference lecture
    Restricted access - publisher's policy
    Characterizing the energy cost of different physical (PHY) layer building blocks is becoming increasingly important in modern cellular-based communications, considering the cross sector requirements for performance ...
  • Harvesting management in multiuser MIMO systems with simultaneous wireless information and power transfer 

    Rubio López, Javier; Pascual Iserte, Antonio (2015)
    Conference lecture
    Restricted access - publisher's policy
    In this paper, we focus on a broadcast multiuser multiple-input multiple-output (MIMO) system where we consider that some terminals harvest power and, thus, recharge their batteries through wireless power transfer from the ...
  • Joint optimization of power and data transfer in multiuser MIMO systems 

    Rubio López, Javier; Pascual Iserte, Antonio; Palomar, Daniel P.; Goldsmith, Andrea (2017-01-01)
    Article
    Open Access
    We present an approach to solve the nonconvex optimization problem that arises when designing the transmit covariance matrices in multiuser multiple-input multiple-output (MIMO) broadcast networks implementing simultaneous ...
  • Network dimensioning and base station on/off switching strategies for sustainable deployments in remote areas 

    Rubio López, Javier; Olmo Alòs, Jaume del; Pascual Iserte, Antonio; Vidal Manzano, José; Muñoz Medina, Olga; Agustín de Dios, Adrián (2017-12)
    Article
    Open Access
    This paper provides a methodology for the dimensioning of the access network in remote rural areas, considering the progressive introduction of cellular services in these regions. A 3G small cell (SC) network with one or ...
  • Resource management techniques for sustainable networks with energy harvesting nodes 

    Rubio López, Javier (Universitat Politècnica de Catalunya, 2016-06-22)
    Doctoral thesis
    Open Access
    This dissertation proposes novel techniques for assigning resources of wireless networks by considering that the coverage radii are small, implying that some power consumption sinks not considered so far shouldnow be ...
  • Simultaneous wireless information and power transfer in multiuser MIMO systems 

    Rubio López, Javier; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    In this paper, we focus on a broadcast multiuser multiple-input multiple-output (MIMO) system in a network with short links. In this scenario we consider that some terminals harvest power and, thus, recharge their ...