Enviaments recents

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

    Pérez Romero, Jordi; Sallent Roig, José Oriol; Agustí Comes, Ramon (1998)
    Text en actes de congrés
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  • A simple algorithm to distribute optimally a number of external base stations in a microcellular environment 

    Agustí Comes, Ramon; Monfort, Xavier Querol; Pérez Romero, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 1998)
    Text en actes de congrés
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    A simple algorithm is proposed for the optimal distribution of a number of base stations in a microcellular environment. Criteria are defined in order to decide the combinations of antennas that should be tested, and a ...
  • Spatial distribution analysis with capture effect of a mobile S-ALOHA network 

    Covarrubias, David; Ruiz Boqué, Sílvia; Huguet, Joan; Olmos Bonafé, Juan José (Institute of Electrical and Electronics Engineers (IEEE), 1998)
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    The throughput performance of a mobile S-ALOHA network can be improved considering the capture phenomenon, which also depends on the spatial distribution of the mobiles within the cell. We have studied the capture probabilities ...
  • 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 ...
  • Modelling approach used in the real time emulator of the Rainbow demonstrator 

    Díaz Romero, M. del Pilar; Olmos Bonafé, Juan José; Berberana, Ignacio; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 1997)
    Text en actes de congrés
    Accés obert
    An overview of the main characteristics of the real time emulator (RTE) to be implemented in the context of the Rainbow project is presented. First of all, the RTE functional description is shown in order to justify the ...
  • Dect architecture proposal for a construction site 

    Ruiz Boqué, Sílvia; Agustí Comes, Ramon (1996)
    Text en actes de congrés
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    A construction site is an specific environment where important propagation related issues have to be considered. In particular an important problem concerns the coverage of buildings under construction and therefore ...
  • Adaptive algorithms for improving the throughput in an indoor mobile s-aloha ds-cdma system 

    Sallent Roig, José Oriol; Agustí Comes, Ramon (DR. F-N PAVLIDOU IEEE, 1996)
    Text en actes de congrés
    Accés obert
    This paper presents a novel Adaptive DSCDMA Slotted-ALOHA packet random access scheme with transmitter-based spreading codes for mobiles. It is aimed at improving the throughput and message delay delivery when traffic ...
  • A mobile controlled algorithm for improving the throughput in a s-aloha ds-cdma system 

    Sallent Roig, José Oriol; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Text en actes de congrés
    Accés obert
    This paper presents a novel adaptive DS-CDMA slotted-ALOHA packet random access scheme with transmitter-based spreading codes for mobiles. It is aimed at improving the throughput and message delay delivery when traffic ...
  • Performance of a linear interference canceller for a ds/cdma synchronous system based on the ekf delay estimator 

    Díaz Romero, M. del Pilar; Agustí Comes, Ramon (. S.N., 1995)
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    Since the conventional detector often fails to produce reliable decisions for a CDMA channel, several new multiuser detectors have previously proposed. In the present paper, the authors propose both a simple linear scheme ...
  • On the virtualization and dynamic orchestration of satellite communication services 

    Ferrús Ferré, Ramón Antonio; Koumaras, Harilaos; Sallent Roig, José Oriol; Rasheed, Tinku; Duros, Emmanuel; Riggio, R.; Kuhn, Nicolas; Gélard, Patrick; Ahmed, Toufik (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
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    Key features of satellite communications such as wide-scale coverage, broadcast/multicast support and high availability, together with significant amounts of new satellite capacity coming online, anticipate new opportunities ...

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