Cooperative vehicular information collection based on the cell-weighted policy

Vehicular safety application is a critical ITS service in traffic management. In cooperative vehicular safety application, each vehicle must periodically broadcast its current speed, position, heading and identity to the surrounding vehicles. Because of lacking the channel utilization mechanism, inaccuracy of positioning and inconsistency of geographic information, cooperative vehicular safety application suffers many difficulties and limitations. In this paper, we identify out these problems and propose one RSU assisted on-demand vehicular information collection method, which is based on the geographic cell-weighted policy. Finally we show our demonstration and make conclusion.