@ARTICLE{GUE_Mea_2018,
author = "GUEVARA IBARRA, DINAEL - NAVARRO CADAVID, ANDRES - JIMENEZ, JORDI - CARDONA, NARCIS",
title = "Measurement-based ray-tracing models calibration of the permittivity and conductivity in indoor environments",
abstract = "In  this  paper,  we  show  the  results  of  a  ray  launching  tool  for  channel  estimation  in  indoor  scenario  and  compare it with measurements in a DVB-T system, using a Vector Network Analyzer used to obtain the Root Mean Square Delay Spread (RMS-DS), obtained from S12 parameter. We use a 10mW transmitter and make measurements in 39 different points in the scenario. Also we show the empirical adjustments made in the constitutive  parameters,  in  order  to  improve  the  Delay  Spread  results.  We  show  that  this  kind  of  ray  based  tools  are  very  sensitive  to  the  number  of  interactions  considered  in  the  model  and  also  to  the  values  of  the  constitutive parameters of the different elements in the scenario. For the low frequencies used for this work, we found also that some external elements can influence the results and must be considered for indoor simulations.",
year = 2018,
publisher = "Ingeniería y Competitividad",
url = "https://repositorio.ufps.edu.co/handle/ufps/878",
}