Ara es mostren els items 1-14 de 14

  • A belief-based decision-making framework for spectrum selection in cognitive radio networks 

    Pérez Romero, Jordi; Raschellà, Alessandro; Sallent Roig, José Oriol; Umbert Juliana, Anna (2015-12-17)
    Article
    Accés obert
    This paper presents a comprehensive cognitive management framework for spectrum selection in cognitive radio networks. The framework uses a belief vector concept as a means to predict the interference affecting the different ...
  • A testbed platform to demonstrate spectrum selection in opportunistic networks 

    Raschellà, Alessandro; Umbert Juliana, Anna; Pérez Romero, Jordi; Sallent Roig, José Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper presents a testbed platform to demonstrate and validate spectrum opportunity identification and spectrum selection functionalities in Opportunistic Networks (ONs). The hardware component of the testbed is based ...
  • Cognitive management frameworks and spectrum management strategies exploiting cognitive radio paradigm 

    Raschellà, Alessandro (Universitat Politècnica de Catalunya, 2015-05-27)
    Tesi
    Accés obert
    Cognitive Radio (CR) paradigm represents an innovative solution to mitigate the spectrum scarcity problem by enabling Dynamic Spectrum Access (DSA), defined in order to conciliate the existing conflicts between the ...
  • Enhanced cognitive radio operation through belief-based decision making 

    Pérez Romero, Jordi; Raschellà, Alessandro; Sallent Roig, José Oriol; Umbert Juliana, Anna (VDE Conference Publications, 2010)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper focuses on the analysis of the trade-off existing between achieved performance and observation requirements in a decision making framework based on the cognitive cycle. For that purpose, it presents a general ...
  • Enhanced cognitive radio operation through beliefbased decision making 

    Pérez Romero, Jordi; Raschellà, Alessandro; Sallent Roig, José Oriol; Umbert Juliana, Anna (VDE Conference Publications, 2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper focuses on the analysis of the trade-off existing between achieved performance and observation requirements in a decision making framework based on the cognitive cycle. For that purpose, it presents a general ...
  • Evaluation of a belief-based decision making in a real-time platform for Cognitive Radio networks 

    Raschellà, Alessandro; Pérez Romero, Jordi; Sallent Roig, José Oriol; Umbert Juliana, Anna (2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper presents a real-time testbed based on reconfigurable devices able to transmit and receive data at different operating frequencies, which are dynamically configured. The main objective of this paper is to provide ...
  • Implementation of cognitive radio networks to evaluate spectrum management strategies in real-time 

    Raschellà, Alessandro; Umbert Juliana, Anna (2016-04-01)
    Article
    Accés restringit per política de l'editorial
    This paper illustrates a Universal Software Radio Peripheral (USRP)-based real-time testbed that is able to evaluate different spectrum management solutions that exploit the Cognitive Radio (CR) paradigm. The main objective ...
  • Multi-band spectrum selection framework based on partial observations 

    Pérez Romero, Jordi; Raschellà, Alessandro; Sallent Roig, José Oriol; Umbert Juliana, Anna (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The demand for higher data rates, capacity and better Quality of Service (QoS) is constantly growing; therefore, there is a pressing need for efficient use of wireless network resources. In this context, the application ...
  • On demonstrating spectrum selection functionality for opportunistic networks 

    Raschellà, Alessandro; Umbert Juliana, Anna; Pérez Romero, Jordi; Sallent Roig, José Oriol (2012)
    Text en actes de congrés
    Accés obert
    This paper presents a testbed platform to demonstrate and validate spectrum opportunity identification and spectrum selection functionalities in Opportunistic Networks (ONs). The hardware component of the testbed is based ...
  • On the impact of the user terminal velocity on HSPA performance in MBMS multicast mode 

    Raschellà, Alessandro; Umbert Juliana, Anna; Araniti, Giuseppe; Iera, Antonio; Molinaro, Antoniella (IEEE, 2009)
    Comunicació de congrés
    Accés obert
    Multimedia Broadcast/Multicast Services (MBMS), introduced in Universal Mobile Telecommunication System (UMTS), have the aim to allow transmissions from a single source entity to multiple destinations. From the radio ...
  • On the optimization of power assignment to support multicast applications in HAP-based systems 

    Araniti, Giuseppe; Iera, Antonio; Molinaro, Antonella; Raschellà, Alessandro; Umbert Juliana, Anna (2010)
    Text en actes de congrés
    Accés obert
    The goal of this research work is to investigate how efficient High Altitude Platforms (HAPs) can be in supporting Multimedia Broadcast/Multicast Service (MBMS) in scenarios in which the terrestrial coverage is not ...
  • Performance analysis of satellite-HSDPA transmissions in emergency networks 

    Raschellà, Alessandro; Araniti, Giuseppe; Umbert Juliana, Anna; Iera, Antonio; Molinaro, Antonella (2011)
    Text en actes de congrés
    Accés obert
    In this work we are interested to investigate how the Geostationary (GEO) satellite can be used to employ efficiently High Speed Downlink Packet Access (HSDPA) technology supporting Multimedia Broadcast/Multicast Service ...
  • Results analysis and validation - D5.3 

    Moreno, Oscar; González, José Luis; Pérez Romero, Jordi; Sallent Roig, José Oriol; Raschellà, Alessandro; Umbert Juliana, Anna; Gebert, Jens; Fuchs, Rolf; Demestichas, Panagiotis; Georgakopoulos, Andreas; Stavroulaki, Vera; Tsagkaris, Kostas; Kritikou, Yiouli; Tzifa, Lia; Koutsouris, Nikos; Karvounas, Dimitrios; Logothetis, Marios; Sarli, Asimina; Bantouna, Aimilia; Papadopoulou, Louisa-Magdalene; Galani, Aristi; Vlacheas, Panagiotis; Morakos, Petros; Antzoulatos, Alexandros; Mueck, Markus; Drewes, Christian; Nehring, Florian; Moser, Guenter; Tosic, Milenko; Boskovic, Dragan; Ikovic, Ognjen; Cirilovic, Mirko; Vahid, Seiamak; Ghoraishi, Mir; Pega, Stéphane; Bourdellès, Michel; Bagayoko, Abdoulaye; Mouton, Christian; Panaitopol, Dorin; Delsol, Thomas (2012-12-31)
    Report de recerca
    Accés obert
    Deliverable D5.3 del projecte OneFIT
  • Validation platform implementation description – D5.2 

    Sallent Roig, José Oriol; Tosic, M.; Ikovic, Ognjen; Boskovic, Dragan; Cirilovic, Mirko; Gebert, Jens; Fuchs, Rolf; Wich, Andreas; Pérez Romero, Jordi; Drewes, Christian; Mueck, Markus; Demestichas, Panagiotis; Tsagkaris, Kostas; Koutsouris, Nikos; Stavroulaki, Vera; Georgakopoulos, Andreas; Karvounas, Dimitrios; Raschellà, Alessandro; Ferrús Ferré, Ramón Antonio; Nehring, Florian; Mouton, Christian; Vahid, Seiamak; González, José Luis; Delsol, Thomas; Moser, Guenter; Moreno, Oscar (2012-06)
    Report de recerca
    Accés obert
    Deliverable D5.2 del projecte OneFIT