Vehicle-to-Vehicle Channel Characterization Based on Ray-Tracing for Urban Road Scenarios

Table 1

Material parameters.

Object	Material	Relative permittivity	Loss tangent
Ground, sidewalk, and residential buildings	Concrete	1.06	0.65
Vehicle windows, commercial buildings	Tempered glass	0.0538	23.9211
Trunk	Wood	1.27	0.0038
Vehicle body, fence	Metal	1
Leaves	Matsuba	1.36	0.0441
Wheel	Rubber	2.168	0.038