Ara es mostren els items 1-20 de 27

  • A comparison of different optimisation search methodologies for self-optimisation in wireless cellular networks 

    Sánchez González, Juan; Sallent Roig, José Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Self-Organising Networks (SON) concept is seen as a way to reduce costs by automating functionalities such as network optimisation usually performed manually with extensive human work time. This paper provides a general ...
  • A novel near-optimum medium acces control protocol for a distributed cooperative ARQ scheme in wireless networks 

    Alonso Zárate, Jesús; Verikoukis, Christos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga (Institute of Electrical and Electronics Engineers (IEEE), 2008-09-30)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The distributed queuing MAC protocol for cooperative networks (DQCOOP) is presented in this paper as an innovative MAC protocol designed to coordinate the relay retransmissions in a cooperative automatic retransmission ...
  • A simple closed-form approximation for the packet loss rate of a TCP connection over wireless links 

    Mata Diaz, Jorge; Alins Delgado, Juan José; Muñoz Tapia, José Luis; Esparza Martín, Óscar (2014-09-15)
    Article
    Accés restringit per política de l'editorial
    This letter presents a new and simple model for a TCP flow experiencing random packet losses due to both transmission errors and congestion events. From this model, we will derive a straightforward expression of a unified ...
  • Bezdrátové síte 

    Salazar Soler, Jorge (European Virtual Learning Platform for Electrical and Information Engineering, 2016-11-08)
    Llibre
    Accés obert
    Tento modul poskytuje aktuální prehled bezdrátových sítí s primárním zamerením na bezdrátové síte typu LAN. Popisuje a vysvetluje základy ruzných typu bezdrátových technologií užívaných u moderních komunikacních systému ...
  • Bezdrôtové siete 

    Salazar Soler, Jorge (European Virtual Learning Platform for Electrical and Information Engineering, 2016-06-11)
    Llibre
    Accés obert
    Tento modul predstavuje všeobecný úvod do problematiky bezdrôtových sietí a podrobnejšie lokálnych prístupových sietí LAN. Sú v nom opísané a vysvetlené rôzne existujúce bezdrôtové technológie, ich základné vlastnosti, ...
  • Brief announcement: Game theoretical approach for energy-delay balancing in distributed duty-cycled MAC protocols of wireless networks 

    Doudou, Messaoud; Barceló Ordinas, José María; Djenouri, Djamel; García Vidal, Jorge; Badache, Nadjib (Association for Computing Machinery (ACM), 2014)
    Text en actes de congrés
    Accés obert
    Optimizing energy consumption and end-to-end (e2e) packet delay in energy constrained distributed wireless networks is a conflicting multi-objective optimization problem. This paper investigates this trade-off from a ...
  • Contributions to TOA-based location with wlan 

    Ciurana Adell, Marc (Universitat Politècnica de Catalunya, 2010-07-15)
    Tesi
    Accés obert
    Location techniques that satisfy the requirements of advanced Location-Based Services (LBS) in environments where GPS fails are needed, therefore accurate indoor positioning is becoming increasingly important. This PhD ...
  • Design and analysis of medium access control protocols for ad hoc and cooperative wireless networks 

    Alonso Zárate, Jesús (Universitat Politècnica de Catalunya, 2009-02-25)
    Tesi
    Accés obert
    La presente tesis doctoral contribuye a la incesante evolución de las comunicaciones inalámbricas. Se centra en el diseño de protocolos de acceso al medio (MAC) para redes ad hoc y redes inalámbricas cooperativas. En una ...
  • Diseño e implementación de una estación meteorológica de bajo coste con conectividad a Internet 

    Fàbregas Bachs, Marc (Universitat Politècnica de Catalunya, 2016)
    Projecte/Treball Final de Carrera
    Accés obert
    The Internet of Things (IoT) is a new technological paradigm, which predicts in a near future billion of devices would be able to connect to Internet, opening a new set of services and applications that will enrich human ...
  • Distortion model for H.264/AVC sequences 

    Martínez García, Sara (Universitat Politècnica de Catalunya, 2010-05-04)
    Projecte Final de Màster Oficial
    Accés obert
  • Drahtlose Netzwerke 

    Salazar Soler, Jorge (European Virtual Learning Platform for Electrical and Information Engineering, 2016-06-11)
    Llibre
    Accés obert
    Dieses Modul bietet eine aktuelle Übersicht der drahtlosen Netzwerke im Allgemeinen und der drahtlosen LAN-Netzwerke im Besonderen. Es beschreibt die Grundlagen der verschiedenen drahtlosen Technologien, ihre Hauptcharak ...
  • Dynamic Buffer Size Allocation in Wireless Networks for Non-Elastic Traffic 

    Rumipamba Zambrano, Rubén Darío (Universitat Politècnica de Catalunya, 2014-01-08)
    Projecte Final de Màster Oficial
    Accés obert
    The dimensioning of the buffers in communication devices (routers and switches) is an important aspect to take into account since it affects some parameters of network performance such as: loss probability, end-to-end delay ...
  • Dynamic buffer sizing for wireless devices via maximum entropy 

    Vázquez Rodas, Andrés; Cruz Llopis, Luis Javier de la; Aguilar Igartua, Mónica; Sanvicente Gargallo, Emilio (2014-05-15)
    Article
    Accés restringit per política de l'editorial
    Buffer overflow is an important phenomenon in data networks that has much bearing on the overall network performance. Such overflow critically depends on the amount of storage space allotted to the transmission channels. ...
  • Energy saving potentials in the radio access through relaying in future networks 

    Pérez Romero, Jordi; Sallent Roig, José Oriol; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The progressive deployment of cell sites in wireless networks to deal with the massive demand of wireless services experienced in the last years has led to a huge increase in energy consumption and associated operational ...
  • Erlang capacity degradation in multi-access/multi-service wireless networks due to terminal/coverage restrictions 

    Gelabert Doran, Xavier Bernardi; Sallent Roig, José Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (2008)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The benefits of jointly managing the combined radio resources offered by heterogeneous networks consisting of several Radio Access Technologies (RATs) have been profusely studied and assessed in recent years. Nevertheless, ...
  • Integració de xarxes MANET qMp en la comunitat Guifi·net 

    Florit López, Jorge Luis (Universitat Politècnica de Catalunya, 2014-01-24)
    Projecte/Treball Final de Carrera
    Accés obert
    Integració de xarxes de tipus MANET/Mesh amb el software del projecte qMp dins de la xarxa comunitària Guifi·net
  • Monitoring radiological incidents through an opportunistic network 

    Reyes Muñoz, María Angélica; Pastor Llorens, Enric; Gasull, Marti; Barrado Muxí, Cristina (2015-01-01)
    Article
    Accés obert
    In case of radiological incidents before to send a human team to the site would be better have real time information about the situation that rescue teams can find. In this paper we simulate an opportunistic network over ...
  • Network architecture and essential features for 5G: the SESAME project approach 

    Goratti, Leonardo; Costa, Cristina E.; Pérez Romero, Jordi; Sallent Roig, José Oriol; Ruiz, Cristina; Betzler, August; Sayyad Khodashenas, Pouria; Vahid, Seiamak; Nasr, Karim; Abubakar, Babangida; Whitehead, Alan; Belesioti, Maria; Chochliouros, Ioannis (Springer, 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The outstanding and continuous growth of the request of mobile broadband Internet access is creating the unprecedented need to rethink most of the design paradigms of the mobile network. Such trend is accompanied by ...
  • Networking challenges and prospective impact of broadcast-oriented wireless networkson- chip 

    Abadal Cavallé, Sergi; Nemirovsky, Mario; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The cost of broadcast has been constraining the design of manycore processors and of the algorithms that run upon them. However, as on-chip RF technologies allow the design of small-footprint and high-bandwidth antennas ...
  • On learning mobility patterns in cellular networks 

    Sánchez González, Juan; Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, José Oriol (Springer, 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper considers the use of clustering techniques to learn the mobility patterns existing in a cellular network. These patterns are materialized in a database of prototype trajectories obtained after having observed ...