Directional Analysis of Vehicle-to-Vehicle Propagation Channels

Summary, in English

This paper presents a double directional analysis of vehicle-to-vehicle channel measurements conducted in three different traffic scenarios. Using a high-resolution algorithm, we derive channel parameters like Angle-of-Arrival (AOA), Angle-of-Departure (AOD), propagation delay and Doppler shift and identify underlying propagation mechanisms by combining these estimates with maps of the measurement sites. The results show that first-order reflections from a small number of interacting objects can account for a large part of the received signal in the absence of line-of-sight (LOS). This effect is especially pronounced in the two traffic scenarios where the road is not lined with buildings. We also found that the direction spread is low (and conversely that the antenna correlation is high) in such scenarios, which suggests that beam forming rather than diversity-based methods should be used if multiple antenna elements are used. The situation is reversed, however, in the third scenario, a narrow urban intersection, where a larger number of higher-order reflections is found to result in a higher direction spread.

• Author: Taimoor Abbas; Johan Kåredal; Fredrik Tufvesson; Alexander Paier; Laura Bernadó; Andreas Molisch
• Department/s: Department of Electrical and Information Technology; ELLIIT: the Linköping-Lund initiative on IT and mobile communication
• Publishing year: 2011
• Language: English
• Publication/Series: IEEE Vehicular Technology Conference
• Full text: - 460 kB; Download statistics
• Document type: Conference paper
• Publisher: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Conference name: IEEE 73rd Vehicular Technology Conference 2011-spring
• Conference date: 2011-05-15 - 2011-05-18
• Conference place: Budapest, Hungary
• Status: Published
• Research group: Radio Systems