Survey of channel and radio propagation models for wireless MIMO systems
EURASIP Journal on Wireless Communications and Networking
EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
Angle-of-Departure-Aided Opportunistic Space-Division Multiple Access
CNSR '09 Proceedings of the 2009 Seventh Annual Communication Networks and Services Research Conference
EURASIP Journal on Wireless Communications and Networking - Special issue on advances in propagation modelling for wireless systems
A geometry-based stochastic MIMO model for vehicle-to-vehicle communications
IEEE Transactions on Wireless Communications
Modeling the ultra-wideband outdoor channel: measurements and parameter extraction method
IEEE Transactions on Wireless Communications
Angle-of-departure-aided opportunistic space-division multiple access for MIMO applications
IEEE Transactions on Wireless Communications
Power correlation coefficient of a very general fading model in maximal ratio combining
IEEE Transactions on Communications
Spherical statistics and spatial correlation for multielement antenna systems
EURASIP Journal on Wireless Communications and Networking
Results from German research project I-LOV
Proceedings of the 1st International Conference on Wireless Technologies for Humanitarian Relief
New technologies for the search of trapped victims
Ad Hoc Networks
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We present a statistical analysis of wideband three-dimensional channel measurements at base station locations in an urban environment. Plots of the received energy over azimuth, elevation, and delay planes suggest that the incident waves group to clusters in most measured transmitter positions. A super-resolution algorithm (Unitary ESPRIT) allows one to resolve individual multipath components in such clusters and hence enables a detailed statistical analysis of the propagation properties. The origins of clusters-sometimes even individual multipath components-such as street apertures, large buildings, roof edges, or building corners can be localized on the city map. Street guided propagation dominates most of the scenarios (78%-97% of the total received power), while quasi-line-of-sight over-the-rooftop components are weak(3%-13% of the total received power). For this measurement campaign, in 90% of the cases, 75% of the total received power is concentrated in the two strongest clusters, but only 55% in the strongest one. Our analysis yields an exponential decay of power with 8.9 dB/μs, and a standard deviation of the log-normally distributed deviations from the exponential of 9.0 dB. The power of cross-polarized components is 8 dB below copolarized ones on average (vertical transmission)