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Ara es mostren els items 210-222 de 222

    • Technical advances in the design and deployment of future heterogeneous networks 

      Kliks, Adrian; Pérez Romero, Jordi; Boukhatem, Lila; Zalonis, Andreas (2015-06-05)
      Article
      Accés obert
      The trend in wireless communications systems is the enhancement of the network infrastructure with the introduction of small cells, where a specific geographical area is served by low-range, low-power access points. The ...

    • Technology pillars in the architecture of future 5G mobile networks: NFV, MEC and SDN 

      Blanco, Begoña; Fajardo, Jose Oscar; Giannoulakis, Ioannis; Kafetzakis, Emmanouil; Peng, Shuping; Pérez Romero, Jordi; Trajkovska, Irena; Sayyad Khodashenas, Pouria; Goratti, Leonardo; Paolino, Michele; Sfakianakis, Evangelos; Liberal, Fidel; Xilouris, George (Elsevier, 2017-11-01)
      Article
      Accés obert
      This paper analyzes current standardization situation of 5G and the role network softwarization plays in order to address the challenges the new generation of mobile networks must face. This paper surveys recent documentation ...

    • Temporal and spatial spectrum assignment in next generation OFDMA networks through reinforcement learning 

      Bernardo Álvarez, Francisco; Agustí Comes, Ramon; Pérez Romero, Jordi; Sallent Roig, Oriol (2009)
      Text en actes de congrés
      Accés obert
      This paper proposes a Dynamic Spectrum Assignment strategy in the context of next generation multicell Orthogonal Frequency Division Multiple Access networks. The proposed strategy is able to dynamically find spectrum ...

    • Técnicas de ARQ en un esquema de acceso por paquetes DS-CDMA 

      Pérez Romero, Jordi; Sallent Roig, Oriol; Agustí Comes, Ramon (1998)
      Text en actes de congrés
      Accés obert

    • Técnicas de transmisión por paquetes alternativas a S-ALOHA basadas en CDMA para sistemas de comunicaciones móviles 

      Alonso Zárate, Luis Gonzaga; Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, Oriol (Escuelas Tecnicas Superiores de Ingenieros de Telecomunicacion Universidades Politecnicas de Catalunya y Madrid, 1999)
      Text en actes de congrés
      Accés obert
      En esta comunicación se presentan los protocolos de acceso aleatorio ISMA y DQRAP adaptados para sistemas de comunicaciones móviles por paquetes basados en la técnica DS/CDMA. El primero de ellos mejora la eficiencia de ...

    • The role of network digital twinning in a 6G-oriented optimization-as-a-service platform 

      Martínez Caro, José Manuel; Pérez Romero, Jordi; Agüero Calvo, Ramón; Muñiz, Alejandro; Atxutegi, Eneko; Díez, Luis; Contreras, Luis Miguel; González, Ivan; Moreno-Muro, Francisco Javier; Pavón-Marino, Pablo; Sallent Roig, Oriol (Luis Landesa-Porras, 2023)
      Comunicació de congrés
      Accés obert
      The advent of 5G has meant providing users with higher data rates, more connected devices and lower latency, implying the need to redefine traditional network management methods. In addition, 6G is expected to provide much ...

    • The role of virtualization in the small cell enabled mobile edge computing ecosystem 

      Goratti, Leonardo; Costa, Cristina; Pérez Romero, Jordi; Sayyad Khodashenas, Pouria; Whitehead, Alan; Chochliouros, Ioannis (Springer, 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Virtualisation is playing a fundamental role in the evolution of telecommunication services and infrastructures, bringing to rethink some of the traditional design paradigms of the mobile network and enabling those ...

    • Time correlation of the intercell to intracell interference ratio in a W-CDMA network 

      Adelantado, Ferran; Sallent Roig, Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (Institution of Electrical Engineers, 2002-12)
      Article
      Accés restringit per política de l'editorial
      W-CDMA performance is tightly coupled to the amount of interference in the air interface and eventually depends on many strongly interrelated system parameters that need to be suitably managed through radio resource ...

    • Towards a more efficient spectrum usage: spectrum sensing and cognitive radio techniques 

      Pérez Romero, Jordi; Noguet, Dominique; López Benítez, Miguel; Casadevall Palacio, Fernando José (2011-03)
      Article
      Accés obert
      The traditional approach of dealing with spectrum management in wireless communications has been through the definition on a license user granted exclusive exploitation rights for a specific frequency.

    • TVWS indoor measurements for HetNets 

      Kliks, Adrian; Kryszkiewicz, Pawel; Umbert Juliana, Anna; Pérez Romero, Jordi; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper the results of intensive measurement campaigns performed inside the buildings in two locations (Poznan, Poland and Barcelona, Spain) are presented and analyzed to investigate their potential in the generation ...

    • Type-II Hybrid ARQ Scheme in a DS-CDMA Packet Transmission Network 

      Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, Oriol (1999)
      Text en actes de congrés
      Accés obert

    • Validation platform implementation description – D5.2 

      Sallent Roig, 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

    • Waveform flexibility in database-oriented cognitive wireless systems 

      Kulacz, Lukasz; Kryszkiewicz, Pawel; Kliks, Adrian; Pérez Romero, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      In this paper we discuss the idea of waveform flexibility in future wireless networks utilizing cognitive radio functionality. Mainly, we consider the possibility to adjust the shape of the waveform based on the information ...