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Multi-dimensional K-factor analysis for V2V radio channels in open sub-urban street crossings

Bernadó, Laura; Zemen, Thomas; Kåredal, Johan LU ; Paier, Alexander; Thiel, Andreas; Klemp, Oliver; Czink, Nicolai; Tufvesson, Fredrik LU ; Molisch, Andreas LU and Mecklenbräuker, Christoph (2010) IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010 In [Host publication title missing] p.58-63
Abstract
In this paper we analyze the small-scale fading statistics for vehicle-to-vehicle (V2V) communications in a typical open sub-urban street crossing. The two cars approach the crossing from two different streets and the channel conditions vary from non line-of sight (NLOS) to line-of-sight (LOS). The small-scale fading of the first delay bin is Ricean distributed with a time-varying K-factor. The later delay bins are mostly Rayleigh distributed. The antenna arrays used for recording the multiple-input multiple-output channels are linear and consist of 4 elements with directional radiation patterns. We investigate the K-factor variation of the first delay bin in time, frequency, and space dimensions, where the measurement has a duration of 20... (More)
In this paper we analyze the small-scale fading statistics for vehicle-to-vehicle (V2V) communications in a typical open sub-urban street crossing. The two cars approach the crossing from two different streets and the channel conditions vary from non line-of sight (NLOS) to line-of-sight (LOS). The small-scale fading of the first delay bin is Ricean distributed with a time-varying K-factor. The later delay bins are mostly Rayleigh distributed. The antenna arrays used for recording the multiple-input multiple-output channels are linear and consist of 4 elements with directional radiation patterns. We investigate the K-factor variation of the first delay bin in time, frequency, and space dimensions, where the measurement has a duration of 20 s, a bandwidth of 240 MHz, and 16 individual single-input single- output channels. We observe that the large/small K-factor values are not necessarily correlated with the received power. We show that the K-factor can not be assumed to be constant in any of the considered domains, not even in the frequency domain, as it has been always done for relative bandwidths up to 10%. The narrow- band K-factor for each frequency bin corroborates the need to consider its frequency variation. The antenna radiation patterns, and the illuminated objects by them at different time instances are the cause of these variations. We conclude that a multi- dimensional varying K-factor models the large-scale statistical behaviour more accurately than a constant K-factor. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
pages
6 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010
external identifiers
  • Scopus:78751535808
ISBN
978-1-4244-8017-3
DOI
10.1109/PIMRC.2010.5671774
language
English
LU publication?
yes
id
7faacb41-8094-4bb5-ae0c-c19cabc014d8 (old id 1661157)
date added to LUP
2010-08-25 15:46:25
date last changed
2016-10-13 04:44:31
@misc{7faacb41-8094-4bb5-ae0c-c19cabc014d8,
  abstract     = {In this paper we analyze the small-scale fading statistics for vehicle-to-vehicle (V2V) communications in a typical open sub-urban street crossing. The two cars approach the crossing from two different streets and the channel conditions vary from non line-of sight (NLOS) to line-of-sight (LOS). The small-scale fading of the first delay bin is Ricean distributed with a time-varying K-factor. The later delay bins are mostly Rayleigh distributed. The antenna arrays used for recording the multiple-input multiple-output channels are linear and consist of 4 elements with directional radiation patterns. We investigate the K-factor variation of the first delay bin in time, frequency, and space dimensions, where the measurement has a duration of 20 s, a bandwidth of 240 MHz, and 16 individual single-input single- output channels. We observe that the large/small K-factor values are not necessarily correlated with the received power. We show that the K-factor can not be assumed to be constant in any of the considered domains, not even in the frequency domain, as it has been always done for relative bandwidths up to 10%. The narrow- band K-factor for each frequency bin corroborates the need to consider its frequency variation. The antenna radiation patterns, and the illuminated objects by them at different time instances are the cause of these variations. We conclude that a multi- dimensional varying K-factor models the large-scale statistical behaviour more accurately than a constant K-factor.},
  author       = {Bernadó, Laura and Zemen, Thomas and Kåredal, Johan and Paier, Alexander and Thiel, Andreas and Klemp, Oliver and Czink, Nicolai and Tufvesson, Fredrik and Molisch, Andreas and Mecklenbräuker, Christoph},
  isbn         = {978-1-4244-8017-3},
  language     = {eng},
  pages        = {58--63},
  publisher    = {ARRAY(0x988a8f8)},
  series       = {[Host publication title missing]},
  title        = {Multi-dimensional K-factor analysis for V2V radio channels in open sub-urban street crossings},
  url          = {http://dx.doi.org/10.1109/PIMRC.2010.5671774},
  year         = {2010},
}