Ara es mostren els items 54-73 de 124

    • Gestion del mecanismo de traspaso para trafico IP en los sistemas móviles celulares de tercera generacion 

      Ferrús Ferré, Ramón Antonio; Díaz Romero, M. del Pilar (Escuelas Tecnicas Superiores de Ingenieros de Telecomunicacion Universidades Politecnicas de Catalunya y Madrid, 1999)
      Text en actes de congrés
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      Entre las principales directrices que actualmente determinan la evolución de las redes de telecomunicación se encuentra la adopción progresiva de tecnologías de transmisión en modo paquete. Bajo esta perspectiva, el presente ...
    • Hybrid sparse linear array synthesis applied to phased antenna arrays 

      Yepes, Leonardo Fabio; Covarrubias, David; Alonso, Miguel A.; Ferrús Ferré, Ramón Antonio (2014-01-16)
      Article
      Accés restringit per política de l'editorial
      In this letter, a new hybrid technique to synthesize sparse linear arrays is proposed. This technique is based on the combination of two methods. As a first method, a deterministic synthesis algorithm is used to resolve ...
    • Hybrid sparse two-dimensional antenna array synthesis using independent compression regions 

      Yepes, Leonardo Fabio; Covarrubias, David; Alonso, Miguel A.; Ferrús Ferré, Ramón Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      A new approach to synthesize 2D planar antenna arrays with sparseness characteristics is presented. This approach uses a recently introduced technique called Hybrid Sparse Linear Array Synthesis (HSLAS). In order to ...
    • Information definition for the integrated C4MS - M3.2 

      Gebert, Jens; Filo, Marcin; Sroka, Milosz; Muck, Markus; Mouton, Christian; Vahid, Seiamak; Ferrús Ferré, Ramón Antonio; Pérez Romero, Jordi; Sallent Roig, Oriol; Demestichas, Panagiotis; Georgakopoulos, Andreas; Karvounas, Dimitrios; Logothetis, Marios; Stavroulaki, Vera; Matinmikko, Marja; Mustonen, Miia; Tsagkaris, Kostas; Sarvanko, Heli; Schmidt, Andreas (2011-06)
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      Accés restringit per acord de confidencialitat
    • Interworking in heterogeneous wireless networks: comprehensive framework and future trends 

      Ferrús Ferré, Ramón Antonio; Sallent Roig, Oriol; Agustí Comes, Ramon (2010-04)
      Article
      Accés obert
      Interworking mechanisms are of prime importance to achieve ubiquitous access and seamless mobility in heterogeneous wireless networks. In this article we develop a comprehensive framework to categorize interworking ...
    • Knowledge-based 5G radio access network planning and optimization 

      Pérez Romero, Jordi; Sallent Roig, Oriol; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2016)
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      Self-Organizing Network (SON) functionalities in forthcoming 5G systems stand as a promising field for the fertilization of Artificial Intelligence (AI) mechanisms. In this respect, this paper analyzes how SON functionalities ...
    • Learning-based coexistence for LTE operation in unlicensed bands 

      Sallent Roig, Oriol; Pérez Romero, Jordi; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2015)
      Text en actes de congrés
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      The use of Long Term Evolution (LTE) in the unlicensed 5 GHz band, referred to as LTE-U, is a promising enhancement to increase the capacity of LTE networks and meet the requirements foreseen for future systems. Nevertheless, ...
    • LTE: the technology driver for future public safety communications 

      Ferrús Ferré, Ramón Antonio; Sallent Roig, Oriol; Baldini, Gianmarco; Goratti, Leonardo (2013-10-07)
      Article
      Accés restringit per política de l'editorial
      Wireless communications technologies play an essential role to support the Public Protection and Disaster Relief (PPDR) operational needs. The current Private/Professional Mobile Radio (PMR) technologies used for PPDR ...
    • MAC-PHY enhancement for 802.11b WLAN systems via cross-layering 

      Alonso Zárate, Luis Gonzaga; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2003)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The paper analyses the performance of a novel MAC-PHY scheme for wireless local area networks (WLAN) that makes use of distributed queues and cross-layer concepts to improve radio channel utilisation. Analytical values for ...
    • Machine learning-assisted cross-slice radio resource optimization: Implementation framework and algorithmic solution 

      Ferrús Ferré, Ramón Antonio; Pérez Romero, Jordi; Sallent Roig, Oriol; Vilà Muñoz, Irene; Agustí Comes, Ramon (2020-12)
      Article
      Accés obert
      Network slicing is a central feature in 5G and beyond systems to allow operators to customize their networks for different applications and customers. With network slicing, different logical networks, i.e. network slices, ...
    • Marco funcional para la gestión de slicing en la red de acceso radio 5G 

      Ferrús Ferré, Ramón Antonio; Sallent Roig, Oriol; Pérez Romero, Jordi (Unión Científica Internacional de Radio (URSI), 2018)
      Text en actes de congrés
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      El soporte de slicing en los futuros sistemas 5G persigue acomodar, en una misma infraestructura de red, una diversidad de aplicaciones y modelos de negocio mucho mayor que el permitido actualmente con los sistemas 4G. ...
    • Multi-tenant mobility control in small cells as a service 

      Sallent Roig, Oriol; Pérez Romero, Jordi; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
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      Small Cell as a Service (SCaaS) is envisaged as a solution to facilitate the provisioning of shared radio access capacity to mobile operators in areas where dedicated per-operator deployments may be impractical, typically ...
    • Multiple slot allocation for voice/data transmission over PRMA++ applied to FRAMES multiple access mode 1 

      Ferrús Ferré, Ramón Antonio; Díaz Romero, M. del Pilar (Institute of Electrical and Electronics Engineers (IEEE), 1998)
      Text en actes de congrés
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      This paper presents some simulation results of PRMA++ for voice and data transmission over a physical air interface platform defined in the ACTS European project FRAMES. Variations on the statistics of speech sources ...
    • Next-generation softwarized wireless networks 

      Ferrús Ferré, Ramón Antonio; Marojevic, Vuk; Goratti, Leonardo (2018-11-19)
      Article
      Accés obert
      Fifth-generation (5G) systems are being designed not only to face the unprecedented growth of mobile data traffic forecasted for the coming years but also to support other multiple and diverse use cases associated with new ...
    • Novel architecture for cellular IoT in future non-terrestrial networks: store and forward adaptations for enabling discontinuous feeder link operation 

      Kellermann, Timo Nicolas; Pueyo Centelles, Roger; Camps-Mur, Daniel; Ferrús Ferré, Ramón Antonio; Guadalupi, Marco; Calveras Augé, Anna M. (Institute of Electrical and Electronics Engineers (IEEE), 2022-06-29)
      Article
      Accés obert
      The Internet of Things (IoT) paradigm has already progressed from an emerging technology to an incredibly fast-growing field. Defined as one of the three key services in 5th Generation (5G), massive Machine Type Communications ...
    • On 5G radio access network slicing: radio interface protocol features and configuration 

      Ferrús Ferré, Ramón Antonio; Sallent Roig, Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (2018-01-10)
      Article
      Accés obert
      Network slicing is a fundamental capability for future Fifth Generation (5G) networks to facilitate the cost-effective deployment and operation of multiple logical networks over a common physical network infrastructure in ...
    • On concurrent multipath transfer in SCTP-based handover scenarios 

      Budzisz, Lukasz; Ferrús Ferré, Ramón Antonio; Casadevall Palacio, Fernando José; Amer, Paul (IEEE Computer Society Publications, 2009-06)
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      Abstract—Handling mobility at the transport layer is a promising approach to achieve seamless handover in the context of heterogeneous wireless access networks. In particular, features such as multihoming and dynamic ...
    • On hard/soft handoff and macrodiversity in a CDMA mobile system 

      Ferrús Ferré, Ramón Antonio; Díaz Romero, M. del Pilar (1999)
      Text en actes de congrés
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      Soft Handoff has been shown to perform better than hard handoff in aspects like reverse link capacity and cell coverage. However, some reported comparisons include distance criteria leading to rather pessimistic ...
    • On implementing RRM/SON in virtualized multi-tenant small cell networks 

      Pérez Romero, Jordi; Sallent Roig, Oriol; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper addresses the implementation of Radio Resource Management (RRM) and Self-Organizing Networks (SON) functions in virtualized multi-tenant small cell networks. In this context, the deployment and operation of ...
    • On macrodiversity and power control for the forward link of a CDMA mobile system 

      Ferrús Ferré, Ramón Antonio; Díaz Romero, M. del Pilar (1999)
      Text en actes de congrés
      Accés obert