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On Multilink Shadowing Effects in Measured V2V Channels on Highway

Nilsson, Mikael LU ; Vlastaras, Dimitrios LU ; Abbas, Taimoor LU ; Bergqvist, Björn and Tufvesson, Fredrik LU (2015) 9th European Conference on antennas and Propagation (EuCAP), 2015
Abstract
Shadowing from vehicles can degrade the performance

of vehicle-to-vehicle (V2V) communication systems significantly.

It is thus important to characterize and model the

influence of common shadowing objects like cars properly. For

multilink systems it is essential to model the joint effects on the

different links. However, the multilink shadowing effects in V2V

channels are not yet well understood. In this paper we present

a measurement based analysis of multilink shadowing effects in

V2V communication systems with cars as blocking objects. In

particular we analyze and characterize the joint large scale fading

process for multilink communication at 5.9... (More)
Shadowing from vehicles can degrade the performance

of vehicle-to-vehicle (V2V) communication systems significantly.

It is thus important to characterize and model the

influence of common shadowing objects like cars properly. For

multilink systems it is essential to model the joint effects on the

different links. However, the multilink shadowing effects in V2V

channels are not yet well understood. In this paper we present

a measurement based analysis of multilink shadowing effects in

V2V communication systems with cars as blocking objects. In

particular we analyze and characterize the joint large scale fading

process for multilink communication at 5.9 GHz between four

cars in a highway scenario. From our analysis it is found that

the coherence time of the large scale fading process for different

links can vary from a few seconds to minutes. The results show

that it is essential to consider the correlation of the large scale

fading processes as the correlation coefficients can have both large

negative and large positive values. There is also a clear indication

that multihop techniques provide an efficient way to overcome

the issue with shadowed cars in V2V systems. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
correlation, diversity, multiple links, obstruction, large scale fading, Vehicle-to-Vehicle, shadow fading, channel modeling
conference name
9th European Conference on antennas and Propagation (EuCAP), 2015
external identifiers
  • Scopus:84949663794
language
English
LU publication?
yes
id
9a4e9d38-034e-4d76-9a45-b5229817cf72 (old id 5047541)
date added to LUP
2015-02-11 09:55:18
date last changed
2016-10-13 04:57:12
@misc{9a4e9d38-034e-4d76-9a45-b5229817cf72,
  abstract     = {Shadowing from vehicles can degrade the performance<br/><br>
of vehicle-to-vehicle (V2V) communication systems significantly.<br/><br>
It is thus important to characterize and model the<br/><br>
influence of common shadowing objects like cars properly. For<br/><br>
multilink systems it is essential to model the joint effects on the<br/><br>
different links. However, the multilink shadowing effects in V2V<br/><br>
channels are not yet well understood. In this paper we present<br/><br>
a measurement based analysis of multilink shadowing effects in<br/><br>
V2V communication systems with cars as blocking objects. In<br/><br>
particular we analyze and characterize the joint large scale fading<br/><br>
process for multilink communication at 5.9 GHz between four<br/><br>
cars in a highway scenario. From our analysis it is found that<br/><br>
the coherence time of the large scale fading process for different<br/><br>
links can vary from a few seconds to minutes. The results show<br/><br>
that it is essential to consider the correlation of the large scale<br/><br>
fading processes as the correlation coefficients can have both large<br/><br>
negative and large positive values. There is also a clear indication<br/><br>
that multihop techniques provide an efficient way to overcome<br/><br>
the issue with shadowed cars in V2V systems.},
  author       = {Nilsson, Mikael and Vlastaras, Dimitrios and Abbas, Taimoor and Bergqvist, Björn and Tufvesson, Fredrik},
  keyword      = {correlation,diversity,multiple links,obstruction,large scale fading,Vehicle-to-Vehicle,shadow fading,channel modeling},
  language     = {eng},
  title        = {On Multilink Shadowing Effects in Measured V2V Channels on Highway},
  year         = {2015},
}