Ara es mostren els items 1-20 de 513

  • 5G Infrastructures supporting end-user and operational services: the 5G-XHaul architectural perspective 

    Tzanakaki, Anna; Simeonidou, Dimitra; Berberana, Ignacio; Syrivelis, Dimitris; Camps Mur, Daniel; Seyfettin Demirkol, Ilker; Gutiérrez, Jesús; Wei, Qing; Fehske, Albrecht; Eiselt, Michael; Bartelt, Jens; Lyberopoulos, George; Grass, Eckhard; Anastasopoulos, Markos; Korakis, Thanasis; Flegkas, Paris; Pateromichelakis, Emmanouil; Grieger, Michael; Theodoropoulou, Eleni (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
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    We propose an optical-wireless 5G infrastructure offering converged fronthauling/backhauling functions to support both operational and end-user cloud services. A layered architectural structure required to efficiently ...
  • A centrality-based topology control protocol for wireless mesh networks 

    Vázquez Rodas, Andrés; Cruz Llopis, Luis Javier de la (Elsevier, 2015-01-01)
    Article
    Accés obert
    Nodes in wireless multi-hop networks establish links with their neighbors, which are used for data transmission. In general, in this kind of networks every node has the possibility of acting as a router, forwarding the ...
  • A context-aware service architecture for the integration of body sensor networks and social networks through IP multimedia subsystem 

    Domingo Aladrén, Mari Carmen (2011-01-01)
    Article
    Accés restringit per política de l'editorial
    In this article a new context-aware architecture is proposed for the integration of body sensor networks and social networks through the IP Multimedia Subsystem. Its motivating application scenarios are described. The ...
  • A cooperative ARQ for delay-tolerant vehicular networks 

    Morillo Pozo, Julián David; Trullols Cruces, Óscar; Barceló Ordinas, José María; García Vidal, Jorge (2008-07-25)
    Text en actes de congrés
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    This paper proposes a Cooperative ARQ protocol to be used in delay-tolerant vehicular networks. The proposed scheme has been implemented and evaluated through an experimental testbed, showing that packet losses in ...
  • A dual-mode Ultra-Wideband wireless platform for remote patient monitoring systems 

    Bisbe Novoa, Sergi; Reyes Navarro, Carlos Alberto (Universitat Politècnica de Catalunya, 2012-07-11)
    Projecte Final de Màster Oficial
    Accés obert
    The combination of two factors demands the need to find a solution that guarantees the well-being of the people suffering from chronic diseases. On the one hand, the increase of the life expectancy leads to an older world's ...
  • A GA-based simulation system for WMNs: comparison analysis for different number of flows, client distributions, DCF and EDCA functions 

    Barolli, Admir; Oda, Tetsuya; Matsuo, Keita; Cuka, Miralda; Barolli, Leonard; Xhafa Xhafa, Fatos (Springer, 2017-02-04)
    Article
    Accés restringit per política de l'editorial
    In this paper, we compare the performance of Distributed Coordination Function (DCF) and Enhanced Distributed Channel Access (EDCA) for normal and uniform distributions of mesh clients considering two Wireless Mesh Network ...
  • A GA-based simulation system for WMNs: performance analysis for different WMN architectures considering transmission rate and OLRS protocol 

    Matsuo, Keita; Oda, Tetsuya; Barolli, Admir; Ikeda, Makoto; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
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    In this paper, we evaluate the performance of two WMN architectures considering throughput, delay, jitter and fairness index metrics. For simulations, we used ns-3. We compare the performance for two architectures considering ...
  • A genetic algorithm-based system for Wireless Mesh Networks: analysis of system data considering different routing protocols and architectures 

    Oda, Tetsuya; Elmazi, Donald; Barolli, Admir; Sakamoto, Shinji; Barolli, Leonard; Xhafa Xhafa, Fatos (Springer, 2016-07-01)
    Article
    Accés obert
    Wireless mesh networks (WMNs) are attracting a lot of attention from wireless network researchers. Node placement problems have been investigated for a long time in the optimization field due to numerous applications in ...
  • A long term evolution link level simulator 

    Serra Pagès, Albert (Universitat Politècnica de Catalunya, 2009-02)
    Projecte Final de Màster Oficial
    Accés obert
  • A new approach to exploit channel power imbalance in distributed antenna systems with fiber fronthaul 

    Dowhuszko, Alexis; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Cloud Modulation (CM) is a novel transmission method that mitigates the non-linear impairments introduced by the Radio-over-Fiber (RoF) links of a distributed antenna system. In CM, constant-envelope phase-modulated radio ...
  • A new multicast opportunistic routing protocol for wireless mesh networks 

    Darehshoorzadeh, Amir; Cerdà Alabern, Llorenç (Springer, 2011)
    Text en actes de congrés
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    Opportunistic Routing (OR) has been proposed to improve the efficiency of unicast protocols in wireless networks. In contrast to traditional routing, instead of preselecting a single specific node to be the next-hop ...
  • A Phased Model for Network Selection based on Context 

    Estevez Vanrell, Jose Manuel (Universitat Politècnica de Catalunya, 2009-04-01)
    Projecte/Treball Final de Carrera
    Accés obert
    L’accés a Internet s’ha convertit avui en dia en una necessitat degut a la facilitat i comoditat que ens produeix poder enviar un mail, fer una transferència bancària, consultar informació de tot tipus des de qualsevol ...
  • A price based load balancing scheme for multi-operator wireless access networks 

    Choque, Johnny; Agüero, Ramon; Serrat Fernández, Juan; Muñoz, Luis (Springer, 2012)
    Text en actes de congrés
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    We study a load balancing strategy, based on the price offered by the base stations to the end-users who are willing to establish a connection. The proposed scheme is compared with a pure load balancing procedure, in a ...
  • A Programmable UWB-IR Wireless Sensor Node Prototype, Using the Intel WISP Platform 

    Boixadera Planas, Ramon (Universitat Politècnica de Catalunya, 2010-12-15)
    Projecte/Treball Final de Carrera
    Accés obert
    English: Remote sensing and measuring is becoming more important with accelerating advances in technology. The ability to process large amounts of data using the internet and advanced digital signal processing techniques ...
  • A protocol architecture for energy efficient and pervasive eHealth systems 

    Tennina, Stefano; Di Renzo, Marco; Kartsakli, Elli; Graziosi, Fabio; Lalos, Aris S.; Antonopoulos, Angelos; Mekikis, Prodromos Vasileios; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The design of new and more pervasive healthcare systems has been fostered by the increased expectancy of life in the coming years. In this field, distributed and networked wireless embedded systems, such as Wireless Sensor ...
  • A QoS-based dynamic pricing approach for services provisioning in heterogeneous wireless access networks 

    Guerrero Ibáñez, Juan Antonio; Contreras Castillo, Juan José; Barba Martí, Antonio; Reyes Muñoz, María Angélica (2011-10)
    Article
    Accés restringit per política de l'editorial
    In this paper we propose a simple QoS-based dynamic pricing approach for services provisioning in a heterogeneous wireless access network environment which attempts to increase user’s satisfaction level by firstly, maximizing ...
  • A quality of service-enabled pricing approach for heterogeneous wireless access networks 

    Guerrero Ibáñez, Juan Antonio; Flores Cortés, Carlos; Barba Martí, Antonio; Reyes Muñoz, María Angélica (2010)
    Text en actes de congrés
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    Heterogeneous wireless access networks (HWAN) will create a market for the delivery of an extensive collection of novel and attractive services and contents. Accounting and pricing the ubiquitous services will play a ...
  • A service-constrained positioning strategy for an autonomous fleet of airborne base stations 

    José Torra, Ferran (Universitat Politècnica de Catalunya, 2017-07)
    Projecte Final de Màster Oficial
    Accés obert
    This thesis proposes a positioning strategy for a fleet of unmanned aerial vehicles (UAVs) airlifting wireless base stations. First, two schedulers that model the distribution of resources within a single cell are analyzed. ...
  • A solution framework to provide management services for wireless communications in the digital home 

    Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (2012-11)
    Article
    Accés restringit per política de l'editorial
    The future digital home (DH) is envisioned as a place where a plethora of diverse personal and machine-to-machine communications will coexist to support different applications in areas such as information and ...
  • A suboptimal power allocation algorithm for FBMC/OQAM 

    Caus López, Marius; Pérez Neira, Ana Isabel (2012)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper tackles the sum-rate maximization in FBMC systems. It is well-known that multipath fading destroys the orthogonality of the subcarriers, which brings a non-convex problem that can be interpreted as the ...