Relaying for IEEE 802.11 p at road intersection using a vehicular non-stationary channel model

Zhinan Xu, Laura Bernadó, Mingming Gan, Markus Hofer, Taimoor Abbas, Veronika Shivaldova, Kim Mahler, Dieter Smely, Thomas Zemen

Publikation: Beitrag in Buch oder TagungsbandVortrag mit Beitrag in TagungsbandBegutachtung

Abstract

Traffic s afety at road intersections can be improved by establishing reliable communications between vehicles. For vehicle-to-vehicle communications, this requires information exchange in non line-of-sight (NLOS) conditions due to the obstruction by buildings. In order to overcome the low receive signal-to-noise ratio (SNR) due to NLOS, we consider to place a relay at road intersections to enhance the reliability of communication links. In this paper, we implement a vehicular non-stationary geometry based stochastic channel model for road intersections, which is an extension of an existing highway channel model. The model is verified by comparison with vehicular channel measurements. Using the proposed channel model, we present link level simulation results for IEEE 802.11p relaying at varying transmitter/receiver locations using different channel estimation techniques. The results show that a relay at the intersection is able to greatly extend the reliable communications region. Besides, in the high SNR regime with moderate or high mobility transmitter and receiver, the block type least square channel estimator is the bottleneck that limits the relaying performance. An advanced iterative channel estimator is also simulated, which exhibits robustness against increased vehicle velocities.
OriginalspracheEnglisch
Titel2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)
Seiten1-6
Seitenumfang6
ISBN (elektronisch)978-1-4799-4452-1
DOIs
PublikationsstatusVeröffentlicht - 2014
Veranstaltung2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014) - Vancouver, Kanada
Dauer: 14 Sept. 201415 Sept. 2014

Sonstiges

Sonstiges2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)
Land/GebietKanada
StadtVancouver
Zeitraum14/09/1415/09/14

Research Field

  • Enabling Digital Technologies

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