Now showing items 1-20 of 30

    • A novel dynamic programming inspired algorithm for embedding of virtual networks in future networks 

      Kibalya, Godfrey Mirondo; Serrat Fernández, Juan; Gorricho Moreno, Juan Luis; Yao, Haipeng; Zhang, Peiying (2020-06-06)
      Article
      Restricted access - publisher's policy
      Network virtualization is envisioned to support flexible, cost effective and on-demand deployment of multiple Virtual Networks (VNs) on a shared underlying infrastructure. A key challenge under the virtualization paradigm ...
    • A novel dynamic reputation-based source routing protocol for mobile ad hoc networks 

      Guaya, Lenin; Pallarès Segarra, Esteve; Mezher, Ahmad Mohamad; Forné Muñoz, Jorge (2019-03)
      Article
      Open Access
      Routing in mobile ad hoc networks is based on the cooperation of the network’s nodes. The presence of selfish nodes that do not cooperate in this task drastically reduces the number of delivered packets. In order to find ...
    • An efficient dynamic bandwidth allocation for GPON long-reach extension systems 

      Sales Zaragozá, Vicente; Segarra Mullerat, Josep; Prat Gomà, Josep Joan (2014-08)
      Article
      Restricted access - publisher's policy
      Long-Reach (LR) extension is a promising scenario for the future next generation access networks, enabling less Central Offices (COs) in the field and a large number of customers in the access/metro area. Because of the ...
    • An intelligent two-agent self-configuration approach for radio resource management 

      Collados Zamora, Kevin; Gorricho Moreno, Juan Luis; Serrat Fernández, Juan; Hu, Zheng; Xu, Ke (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      In this paper we propose the use of a two-agent learning scheme for the management of radio resources on cellular access networks. The management is materialized by the implementation of a self-configuration system governing ...
    • Business-driven policy optimization for service management 

      Rubio-Loyola, Javier; Toscano-Pulido, Gregorio; Charalambides, Marinos; Magaña-Aguilar, Marisol; Serrat Fernández, Juan; Pavlou, George; Galeana Zapien, Hiram (2015)
      Article
      Open Access
      The performance of services offered by network operators has a direct impact on its reputation, on its revenue due to new customer subscriptions, and also on penalties that can apply when services are not provided to an ...
    • Calidad de Servicio en redes NGN 

      García Subirón, Sergio (Universitat Politècnica de Catalunya, 2012-07-11)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] This final project provides an overview of the current state of NGN (Next Generation Networks), identify the reasons that encourage migration to these networks and discusses the various avenues of research that ...
    • Calidad en el servicio de las operadoras de Telecomunicaciones en su red fija 

      García Vernet, Joaquín Antonio (Universitat Politècnica de Catalunya, 2017-03)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Accomplishment of a study on the quality the different operators. Systems that have someone of these operators to control and to manage your ratios of quality. Offer of indicators to following for the improvement the ...
    • Contributions to QoS and energy efficiency in wi-fi networks 

      Camps Mur, Daniel (Universitat Politècnica de Catalunya, 2012-01-19)
      Doctoral thesis
      Open Access
      The Wi-Fi technology has been in the recent years fostering the proliferation of attractive mobile computing devices with broadband capabilities. Current Wi-Fi radios though severely impact the battery duration of these ...
    • Cross-layer design and optimization of medium access control protocols for wlans 

      Kartsakli, Elli (Universitat Politècnica de Catalunya, 2012-02-16)
      Doctoral thesis
      Open Access
      This thesis provides a contribution to the field of Medium Access Control (MAC) layer protocol design for wireless networks by proposing and evaluating mechanisms that enhance different aspects of the network performance. ...
    • Diseño e implementación de un servidor de comunicaciones para redes multidisciplinares con acceso seguro a internet, alta disponibilidad y calidad de servicio 

      González Fernández, Abelardo (Universitat Politècnica de Catalunya, 2012-09-04)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] This project arises from the need to improve the performance of the connection of the student residence in Terrassa with the University network and the Internet. The student residence in Terrassa Campus (RESA) was ...
    • FRA: A new fuzzy-based routing approach for optical transport networks 

      Ahvar, E.; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Ahvar, S. (2012)
      Conference report
      Restricted access - publisher's policy
      Providing networks with QoS guarantees is one of the key issues to support current and future expected clients' demands. In this scenario, QoS routing is definitely critical as being responsible for defining those optimal ...
    • Implementació de QoS en un ISP 

      Casellas Muns, Marc (Universitat Politècnica de Catalunya, 2021-01-27)
      Bachelor thesis
      Restricted access - confidentiality agreement
    • Innovative techniques for power consumption saving in telecommunication networks 

      Hesselbach Serra, Xavier; Eramo, Vicenzo; Luo, Yan (2014-05-05)
      Article
      Open Access
    • Knowledge sharing in the health scenario 

      LLuch Ariet, Magi; Brugues de la Torre, Albert; Vallverdú Bayés, Sisco; Pegueroles Vallés, Josep R. (2014-11-28)
      Article
      Open Access
      The understanding of certain data often requires the collection of similar data from different places to be analysed and interpreted. Interoperability standards and ontologies, are facilitating data interchange around the ...
    • Monitoring the service-based system lifecycle with SALMon 

      Oriol Hilari, Marc; Franch Gutiérrez, Javier; Marco Gómez, Jordi (2016)
      Conference lecture
      Open Access
      Los Sistemas Basados en Servicios (SBS) son sistemas software altamente dinámicos compuestos por un conjunto de servicios web provenientes de distintos, y posiblemente heterogéneos, proveedores. En contraste con otros ...
    • NFV-enabled optimal spectrum allocation in flex-frid optical networks 

      Tipantuña Tenelema, Christian José; Hesselbach Serra, Xavier (2020)
      Conference report
      Restricted access - publisher's policy
      This paper proposes an NFV-Enabled optimal spectrum allocation solution applicable to fixed-grid and flex-grid wavelength division multiplexing (WDM) optical networks. By exploiting the frequency shifting capability of ...
    • Novel radio environment map for the ns-3 NR simulator 

      Koutlia, Katerina; Bojovic, Biljana; Lagén Morancho, Sandra; Giupponi, Lorenza (Association for Computing Machinery (ACM), 2021)
      Conference report
      Restricted access - publisher's policy
      Radio Environmental Map (REM) is a useful tool to visualize the network coverage, including signal quality and interference, in multi-cell scenarios. Although REM maps for omnidirectional transmissions/receptions and tools ...
    • Performance improvement strategies for current and next generation Wi-Fi systems 

      Gatnau Sarret, Marta; Ashta, Jagjit Singh (Universitat Politècnica de Catalunya / Aalborg Universiteit, 2012-06-13)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Aalborg universitet / Nokia Networks
      [ANGLÈS] When we refer to wireless communications, Wi-Fi quickly comes to our minds despite that the first Wi-Fi standard appeared over 15 years ago. In these 15 years, the standard has evolved a lot, bringing high throughput ...
    • Preemption and QoS management algorithms for coordinated and uncoordinated base stations 

      Muñoz Medina, Olga; Pascual Iserte, Antonio; Baquero, Pau; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2011)
      Conference lecture
      Restricted access - publisher's policy
      This paper addresses the problem of resource allocation and quality of service (QoS) management in a downlink communication system where the users are allowed to be attached to and receive data from one or several ...
    • Quantifying dynamic traffic in elastic optical networks 

      Comellas Colomé, Jaume; Vicario, L.; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This work is focused on the characterization of the traffic allocated in Elastic Optical backbone networks when different dynamic traffic profiles are generated. Extensive simulations are done to statistically model the ...