Wideband and Ultrawideband Channel Models in Working Machine Environment
We present statistical models for wideband and ultrawideband (UWB) radio channels in a working machine cabin environment. Based on a set of measurements, it was found that such a small and confined space causes mostly diffuse multipath scattering rather than specular paths. The amplitude of the chan...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/702917 |
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| author | Attaphongse Taparugssanagorn Matti Hämäläinen Jari Iinatti |
| author_facet | Attaphongse Taparugssanagorn Matti Hämäläinen Jari Iinatti |
| author_sort | Attaphongse Taparugssanagorn |
| collection | DOAJ |
| description | We present statistical models for wideband and ultrawideband (UWB) radio channels
in a working machine cabin environment. Based on a set of measurements, it was found that such a small
and confined space causes mostly diffuse multipath scattering rather than specular paths. The amplitude
of the channel impulse responses in the wideband case is mostly Rayleigh distributed small-scale fading
signal, with only a few paths exhibiting Ricean distributions, whereas the ones in the UWB case tend to
be log-normally distributed. For the path amplitude, we suggest an exponential decay profile, which has
a constant slope in dB scale, with the corresponding parameters for the UWB case. For the wideband
case, a twofold exponential decay profile provides excellent fits to the measured data. It was also noted
that the root-mean-square (RMS) delay spread is independent of the line-of-sight/obstructed line-of-sight
situations of the channel. The multipath components contributing significant energy play a major role
in such a small environment if compared to the direct path. In addition, the radio channel gains are
attenuated with the presence of a driver inside the cabin. |
| format | Article |
| id | doaj-art-e716335ced6341dbb834d946de5bf184 |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-e716335ced6341dbb834d946de5bf1842025-02-03T05:46:42ZengWileyModelling and Simulation in Engineering1687-55911687-56052012-01-01201210.1155/2012/702917702917Wideband and Ultrawideband Channel Models in Working Machine EnvironmentAttaphongse Taparugssanagorn0Matti Hämäläinen1Jari Iinatti2Centre for Wireless Communications, University of Oulu, 90570 Oulu, FinlandCentre for Wireless Communications, University of Oulu, 90570 Oulu, FinlandCentre for Wireless Communications, University of Oulu, 90570 Oulu, FinlandWe present statistical models for wideband and ultrawideband (UWB) radio channels in a working machine cabin environment. Based on a set of measurements, it was found that such a small and confined space causes mostly diffuse multipath scattering rather than specular paths. The amplitude of the channel impulse responses in the wideband case is mostly Rayleigh distributed small-scale fading signal, with only a few paths exhibiting Ricean distributions, whereas the ones in the UWB case tend to be log-normally distributed. For the path amplitude, we suggest an exponential decay profile, which has a constant slope in dB scale, with the corresponding parameters for the UWB case. For the wideband case, a twofold exponential decay profile provides excellent fits to the measured data. It was also noted that the root-mean-square (RMS) delay spread is independent of the line-of-sight/obstructed line-of-sight situations of the channel. The multipath components contributing significant energy play a major role in such a small environment if compared to the direct path. In addition, the radio channel gains are attenuated with the presence of a driver inside the cabin.http://dx.doi.org/10.1155/2012/702917 |
| spellingShingle | Attaphongse Taparugssanagorn Matti Hämäläinen Jari Iinatti Wideband and Ultrawideband Channel Models in Working Machine Environment Modelling and Simulation in Engineering |
| title | Wideband and Ultrawideband Channel Models in Working Machine Environment |
| title_full | Wideband and Ultrawideband Channel Models in Working Machine Environment |
| title_fullStr | Wideband and Ultrawideband Channel Models in Working Machine Environment |
| title_full_unstemmed | Wideband and Ultrawideband Channel Models in Working Machine Environment |
| title_short | Wideband and Ultrawideband Channel Models in Working Machine Environment |
| title_sort | wideband and ultrawideband channel models in working machine environment |
| url | http://dx.doi.org/10.1155/2012/702917 |
| work_keys_str_mv | AT attaphongsetaparugssanagorn widebandandultrawidebandchannelmodelsinworkingmachineenvironment AT mattihamalainen widebandandultrawidebandchannelmodelsinworkingmachineenvironment AT jariiinatti widebandandultrawidebandchannelmodelsinworkingmachineenvironment |