Enviaments recents

  • Communication recovery with emergency aerial networks 

    Mekikis, Prodromos Vasileios; Antonopoulos, Angelos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2017-08-01)
    Article
    Accés obert
    In spite of the significant advancements in wireless connectivity, the static form of the network infrastructure cannot guarantee an uninterrupted operation of the ever-growing wireless consumer electronics in emergency ...
  • Evaluating cost allocation imposed by cooperative switching off in multi-operator shared HetNets 

    Oikonomakou, Maria; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2017-12)
    Article
    Accés obert
    The anticipated explosion in the total data traffic load will impose to mobile network operators (MNOs) the necessity to densify their networks to provide coverage. At the same time, since MNOs plan their networks according ...
  • Contention tree-based access for wireless machine-to-machine networks with energy harvesting 

    Vázquez Gallego, Francisco; Kalalas, Charalampos; Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2017-06)
    Article
    Accés obert
    In this paper, we consider a wireless machine-to-machine network composed of end-devices with energy harvesters that periodically transmit data to a gateway. While energy harvesting allows for perpetual operation, the ...
  • Non-saturation delay analysis of medium transparent MAC protocol for 5G 60GHz fiber-wireless towards 5G mmWave networks 

    Kalfas, George; Vardakas, John S.; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos; Pleros, Nikos (2017-07-04)
    Article
    Accés obert
    In this paper we demonstrate an analytical model for computing the end to end packet delay of a converged Optical/Wireless 60GHz Radio-over-Fiber (RoF) network operating under the Medium-Transparent MAC (MT-MAC) protocol. ...
  • Multi-tenant slicing for spectrum management on the road to 5G 

    Vincenzi, Matteo; Antonopoulos, Angelos; Kartsakli, Elli; Vardakas, John S.; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2017-10-01)
    Article
    Accés obert
    The explosive data traffic demand in the context of the 5G revolution has stressed the need for network capacity increase. As the network densification has almost reached its limits, mobile network operators are motivated ...
  • Audit of a real Wi-Fi deployment to provide data, VoIP communications and an IIoT item location service 

    Pérez Díaz de Cerio, David; Valenzuela González, José Luis; García Lozano, Mario (Academy Publisher, 2017-10-17)
    Article
    Accés restringit per política de l'editorial
    As the number of Access Points and stations sharing the unlicensed ISM (Industrial Scientific Medical) bands increases, interference diminishes the theoretical performance of 802.11 standard. This paper presents results ...
  • Proposal and evaluation of BLE discovery process based on new features of bluetooth 5.0 

    Hernandez Solana, Angela; Pérez Díaz de Cerio, David; Valdovinos, Antonio; Valenzuela González, José Luis (MDPI AG, 2017-09-01)
    Article
    Accés obert
    The device discovery process is one of the most crucial aspects in real deployments of sensor networks. Recently, several works have analyzed the topic of Bluetooth Low Energy (BLE) device discovery through analytical or ...
  • A mobile network planning tool based on data analytics 

    Moysen Cortes, Jessica; Giupponi, Lorenza; Mangues Bafalluy, Josep (HINDAWI, 2017-02-05)
    Article
    Accés obert
    Planning future mobile networks entails multiple challenges due to the high complexity of the network to be managed. Beyond 4G and 5G networks are expected to be characterized by a high densification of nodes and heterogeneity ...
  • Downlink scheduling and resource allocation for 5G MIMO-multicarrier: OFDM vs FBMC/OQAM 

    Femenias Nadal, Guillem; Riera Palou, Felip; Mestre, Xavier; Olmos Bonafé, Juan José (Institute of Electrical and Electronics Engineers (IEEE), 2017-07-20)
    Article
    Accés obert
    OAPA The definition of the next generation of wireless communications, so-called 5G networks, is currently underway. Among many technical decisions, one that is particularly fundamental is the choice of the physical layer ...
  • Energy-and spectrum-efficient user association in millimeter-wave backhaul small-cell networks 

    Mesodiakaki, Agapi; Adelantado Freixer, Ferran; Alonso Zárate, Luis Gonzaga; di Renzo, Marco; Verikoukis, Christos (2017-02-01)
    Article
    Accés obert
    Macrocells are expected to be densely overlaid by small cells (SCs) to meet increasing capacity demands. Due to their dense deployment, some SCs will not be connected directly to the core network, and thus, they may forward ...
  • Analytical and experimental performance evaluation of BLE neighbor discovery process including non-idealities of real chipsets 

    Pérez Díaz de Cerio, David; Hernández, Ángela; Valenzuela González, José Luis; Valdovinos, Antonio (MDPI AG, 2017-03-03)
    Article
    Accés obert
    The purpose of this paper is to evaluate from a real perspective the performance of Bluetooth Low Energy (BLE) as a technology that enables fast and reliable discovery of a large number of users/devices in a short period ...
  • The help4mood wearable sensor network for inconspicuous activity measurement 

    Pérez Díaz de Cerio, David; Ruiz Boqué, Sílvia; Rosell Ferrer, Francisco Javier; Ramos Castro, Juan José; Valenzuela González, José Luis; Colomé Castellví, Josep Maria (2013-08)
    Article
    Accés restringit per política de l'editorial
    The Help4Mood EU FP7 project (H4M) [1] proposes to significantly advance the state-ofthe-art in computerized support for people with Major Depression by monitoring mood, physical activity and voice characteristics while ...

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