Measurements based channel characterization for vehicle-to-vehicle communications at merging lanes on highway

This paper presents results for vehicle-to-vehicle channel characterization based on measurements conducted for a merging lane scenario on a highway. We present power delay profiles as well as channel gains and analyze important propagation mechanisms to see the impact of line-of-sight (LOS) and the antenna radiation pattern on the total received power. It is found that the absence of LOS and strong scattering objects, close to the point where the ramp merges with a highway may result in poor received signal strength. The probability of dropping packets also increases where there is LOS between TX and RX but the antenna pattern is not omni-directional. A dip in the antenna pattern affects the received signal strength severely which poses a challenge for vehicle-to-vehicle communication in safety critical situations.

[1]  Fredrik Tufvesson,et al.  Directional Analysis of Vehicle-to-Vehicle Propagation Channels , 2011, 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring).

[2]  Andreas F. Molisch,et al.  Condensed Parameters for Characterizing Wideband Mobile Radio Channels , 1999, Int. J. Wirel. Inf. Networks.

[3]  Qing Xu,et al.  Simulation, analysis, and comparison of ACC and CACC in highway merging control , 2003, IEEE IV2003 Intelligent Vehicles Symposium. Proceedings (Cat. No.03TH8683).

[4]  Atsuya Uno,et al.  Inter-vehicle communications for merging control , 1999, Proceedings of the IEEE International Vehicle Electronics Conference (IVEC'99) (Cat. No.99EX257).

[5]  Gerd Sommerkorn,et al.  Identification of time-variant directional mobile radio channels , 2000, IEEE Trans. Instrum. Meas..

[6]  Johan Karedal,et al.  In-situ vehicular antenna integration and design aspects for vehicle-to-vehicle communications , 2010, Proceedings of the Fourth European Conference on Antennas and Propagation.

[7]  T. Zemen,et al.  Non-WSSUS Vehicular Channel Characterization at 5.2 GHz - Spectral Divergence and Time-Variant Coherence Parameters , 2008 .

[8]  Tankut Acarman,et al.  Performance evaluation of inter-vehicle communication in highway systems and in urban areas , 2006 .

[9]  Klaus I. Pedersen,et al.  Channel parameter estimation in mobile radio environments using the SAGE algorithm , 1999, IEEE J. Sel. Areas Commun..

[10]  Atsuya Uno,et al.  A merging control algorithm based on inter-vehicle communication , 1999, Proceedings 199 IEEE/IEEJ/JSAI International Conference on Intelligent Transportation Systems (Cat. No.99TH8383).

[11]  Fredrik Tufvesson,et al.  Radio Channel Measurements at Street Intersections for Vehicle-to-Vehicle Safety Applications , 2010, 2010 IEEE 71st Vehicular Technology Conference.