Now showing items 1-6 of 6

  • A combined spectral-parabolic equation approach for propagation prediction in tunnels 

    Izquierdo Fernandez, Benjamin; Alonso, Javier; Capdevila Cascante, Santiago; Romeu Robert, Jordi (2010)
    Conference report
    Open Access
    Several techniques can be used to study electromagnetic propagation in tunnels. A combination of two of such techniques is presented in this paper to model propagation inside a rectangular tunnel. They are combined in ...
  • Break point analysis and modelling in subway tunnels 

    Alonso, Javier; Izquierdo Fernandez, Benjamin; Romeu Robert, Jordi (2009)
    Conference report
    Open Access
    The time constraints in network developments inside tunnels require a characterisation of canonical tunnels in terms of propagation path losses and developing a slope model which is usually represented as a two slope ...
  • MIMO channel measurement campaign in subway tunnels 

    Alonso Valdesueiro, Javier; Izquierdo Fernandez, Benjamin; Romeu Robert, Jordi (2010)
    Conference report
    Open Access
    Abstract—The recent construction of the new L9 subway line in Barcelona, Spain has provided the opportunity to study the impact of different antenna configurations on the maximum channel capacity inside subway tunnels. In ...
  • Multiple element antenna placement and structure studies in subway environments 

    Alonso Valdesueiro, Javier; Izquierdo Fernandez, Benjamin; Romeu Robert, Jordi (2010)
    Conference report
    Open Access
    Public subway transport networks require reliable high data reate wireless communication systems. One way to increase the maximum theoretical capacity in a certain environment is to apply the known MIMO techniques in order ...
  • New instrument concepts for ocean sensing: analysis of the PAU-radiometer 

    Camps Carmona, Adriano José; Bosch Lluís, Xavier; Ramos Pérez, Isaac; Marchán Hernández, Juan Fernando; Izquierdo Fernandez, Benjamin; Rodríguez Álvarez, Nereida (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-10-31)
    Article
    Open Access
    Sea surface salinity can be remotely measured by means of L-band microwave radiometry. However, the brightness temperature also depends on the sea surface temperature and on the sea state, which is probably today one of ...
  • Preliminar propagation and MIMO experiments in train tunnels at 5.8GHz 

    Alonso, Javier; Izquierdo Fernandez, Benjamin; Capdevila Cascante, Santiago; Romeu Robert, Jordi (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Open Access
    In this paper, a complete set-up to subway radio propagation measurement at L and C Band is presented. This set-up has been tested at a real subway tunnel with a special structural characteristics allowing propagation path ...