Three-dimensional FDTD analysis of radio wave propagation at intersection surrounded by compound walls in residential area for inter-vehicle communications using 720MHz band

This paper describes the propagation characteristics at an intersection surrounded by compound walls in a residential area. These characteristics were analyzed in three-dimensional space for the first time using the FDTD method. The propagation loss was shown to be affected by the wall height and the ground. In contrast, the propagation loss was almost independent of source location. Furthermore, it was shown that arrival waves from the direction of a source are dominant at non line of sight region at the intersection in a residential area. In the near future, we will investigate the propagation characteristics considering cars and antennas.