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A. Paier, J. Karedal, N. Czink, H. Hofstetter, C. Dumard, T. Zemen, F. Tufvesson, C. Mecklenbräuker, A. Molisch:
"First Results from Car-to-Car and Car-to-Infrastructure Radio Channel Measurements at 5.2 GHz";
Talk: 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Athens, Greece (invited); 09-03-2007 - 09-07-2007; in: "Proceedings of 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC´07)", (2007), Paper ID 1192, 5 pages.

Car-to-car and car-to-infrastructure (henceforth called C2X) communications are constantly gaining importance for roadsafety and other applications. In order to design efficient C2X systems, an understanding of realistic C2X propagation channels is required, but currently, only few measurements have been published. This paper presents a description of an extensive measurement campaign recently conducted in an urban scenario, a rural scenario, and on a highway. We focused on 4 × 4 multiple-input multiple-output (MIMO) measurements at a center frequency of 5.2 GHz with high Doppler
resolution. As first results from evaluating the measurement data we present the power-delay profile and the delay-Doppler spectrum from a selected, especially interesting measurement run from an urban measurement route. We observe dispersed
Doppler contributions between zero and the Doppler shift corresponding to the relative speed of the cars, and very concentrated (in the Doppler domain), contributions from double reflections. Surprisingly, we also found paths with larger delays and zero Doppler shifts.

WAVE, 802.11p, measurements, MIMO

http://publik.tuwien.ac.at/files/pub-et_12400.pdf