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Non-WSSUS vehicular channel characterization in highway and urban scenarios at 5.2 GHz using the local scattering function

Paier, Alexander; Zemen, Thomas; Bernado, Laura; Matz, Gerald; Kåredal, Johan LU ; Czink, Nicolai; Dumard, Charlotte; Tufvesson, Fredrik LU ; Molisch, Andreas LU and Mecklenbräuker, Christoph (2008) International Workshop on Smart Antennas (WSA) p.9-15
Abstract
The fading process in high speed vehicular traffic telematic

applications at 5 GHz is expected to fulfill the wide-sense

stationarity uncorrelated scattering (WSSUS) assumption for

very short time-intervals only. In order to test this assumption

we apply the concept of a local time– and frequency–variant

scattering function, which we estimate from measurements

of vehicle-to-vehicle wave propagation channels by means

of a multi-window spectrogram. The obtained temporal sequence

of local scattering functions (LSF) is used to calculate

a collinearity measure. We define the stationarity time

as the support of the region where the collinearity exceeds... (More)
The fading process in high speed vehicular traffic telematic

applications at 5 GHz is expected to fulfill the wide-sense

stationarity uncorrelated scattering (WSSUS) assumption for

very short time-intervals only. In order to test this assumption

we apply the concept of a local time– and frequency–variant

scattering function, which we estimate from measurements

of vehicle-to-vehicle wave propagation channels by means

of a multi-window spectrogram. The obtained temporal sequence

of local scattering functions (LSF) is used to calculate

a collinearity measure. We define the stationarity time

as the support of the region where the collinearity exceeds a

certain threshold. The stationarity time is the maximum time

duration over which the WSSUS assumption is valid. Measurements

from an highway with vehicles driving in opposite

directions show stationarity times as small as 23 ms whereas

vehicles driving in the same direction show stationarity times

of 1479 ms. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
pages
9 - 15
conference name
International Workshop on Smart Antennas (WSA)
external identifiers
  • Scopus:49749143435
language
English
LU publication?
yes
id
5511751b-0828-4e8b-b6b9-87d15d77fdbe (old id 1056295)
date added to LUP
2008-04-11 11:13:06
date last changed
2017-02-19 04:35:39
@misc{5511751b-0828-4e8b-b6b9-87d15d77fdbe,
  abstract     = {The fading process in high speed vehicular traffic telematic<br/><br>
applications at 5 GHz is expected to fulfill the wide-sense<br/><br>
stationarity uncorrelated scattering (WSSUS) assumption for<br/><br>
very short time-intervals only. In order to test this assumption<br/><br>
we apply the concept of a local time– and frequency–variant<br/><br>
scattering function, which we estimate from measurements<br/><br>
of vehicle-to-vehicle wave propagation channels by means<br/><br>
of a multi-window spectrogram. The obtained temporal sequence<br/><br>
of local scattering functions (LSF) is used to calculate<br/><br>
a collinearity measure. We define the stationarity time<br/><br>
as the support of the region where the collinearity exceeds a<br/><br>
certain threshold. The stationarity time is the maximum time<br/><br>
duration over which the WSSUS assumption is valid. Measurements<br/><br>
from an highway with vehicles driving in opposite<br/><br>
directions show stationarity times as small as 23 ms whereas<br/><br>
vehicles driving in the same direction show stationarity times<br/><br>
of 1479 ms.},
  author       = {Paier, Alexander and Zemen, Thomas and Bernado, Laura and Matz, Gerald and Kåredal, Johan and Czink, Nicolai and Dumard, Charlotte and Tufvesson, Fredrik and Molisch, Andreas and Mecklenbräuker, Christoph},
  language     = {eng},
  pages        = {9--15},
  title        = {Non-WSSUS vehicular channel characterization in highway and urban scenarios at 5.2 GHz using the local scattering function},
  year         = {2008},
}