David Eckhoff, Christoph Sommer, Reinhard German and Falko Dressler, "Cooperative Awareness At Low Vehicle Densities: How Parked Cars Can Help See Through Buildings," Proceedings of IEEE Global Telecommunications Conference (GLOBECOM 2011), Houston, TX, December 2011.
Abstract
Many safety applications in Intelligent Transportation Systems (ITS) require vehicles to be aware of the presence of nearby cars, but - especially in urban and buildings, suburban regions - and other obstacles may block radio transmissions. In the literature, multi-hop relaying by neighboring cars has been demonstrated to perform well at disseminating safety broadcasts in the presence of obstacles. At night, in areas with low traffic density, or when the penetration rate of Car-2-X devices is low, however, there are likely to be too few relaying cars available. This again leads to the problem that vehicles which are not in line-of-sight frequently cannot be sensed either. To the best of our knowledge, we are the first to help overcome this problem by utilizing parked cars as relay nodes. We study the effectiveness and studies, the necessity of this approach with the help of extensive simulative and real life experiments. We show how, for scenarios with few equipped cars, the utilization of parked cars proves crucial to support safety applications. When disseminating safety critical events in a realistic scenario, parked cars can increase cooperative awareness by over 40% in total.
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David Eckhoff
Christoph Sommer
Reinhard German
Falko Dressler
BibTeX reference
@inproceedings{eckhoff2011cooperative,
author = {Eckhoff, David and Sommer, Christoph and German, Reinhard and Dressler, Falko},
booktitle = {IEEE Global Telecommunications Conference (GLOBECOM 2011)},
title = {{Cooperative Awareness At Low Vehicle Densities: How Parked Cars Can Help See Through Buildings}},
year = {2011},
address = {Houston, TX},
month = {December},
publisher = {IEEE},
doi = {10.1109/GLOCOM.2011.6134402},
issn = {1930-529X},
}
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