Priority code selection method of the modified binary countdown scheme for VANET

A new selection method for the modified binary countdown scheme is proposed in this paper to make more effective use of VANET. The modified binary countdown scheme is fused with the binary countdown and slot distributed schemes. In the selection method, the transmission right of each node is kept equal because the node which transmitted a packet correctly chooses the low priority code. As the results of evaluating the average packet acquisition time and efficiency, we found that this scheme has immediacy and can tolerate changes in the number of nodes.