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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad del Valle
2018
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| Online Access: | https://www.redalyc.org/articulo.oa?id=291356699004 https://www.redalyc.org/journal/2913/291356699004/ https://www.redalyc.org/journal/2913/291356699004/html/ https://www.redalyc.org/journal/2913/291356699004/291356699004.epub https://www.redalyc.org/journal/2913/291356699004/movil |
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Table of Contents:
- Measurement-based ray-tracing models calibration of the permittivity and conductivity in indoor environments Andrés Navarro Dinael Guevara Jordi Giménez Narcís Cardona Ingeniería DVB propagation ray tracing Channel modelling 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. 2018 artículo científico 0123-3033 https://www.redalyc.org/articulo.oa?id=291356699004 https://www.redalyc.org/journal/2913/291356699004/ https://www.redalyc.org/journal/2913/291356699004/html/ https://www.redalyc.org/journal/2913/291356699004/291356699004.epub https://www.redalyc.org/journal/2913/291356699004/movil 10.25100/iyc.v20i1.6100 en http://www.redalyc.org/revista.oa?id=2913 Ingeniería y Competitividad application/pdf Universidad del Valle Ingeniería y Competitividad (Colombia) Num.1 Vol.20