distance

In the process of perimeter forwarding, if the distance between the intermediate node and the destination node is less than the distance between the start node in the perimeter strategy and the destination node, the forward strategy will be replaced by two-hop greedy strategy. By combining the two-hop greedy technique and perimeter strategy, TGPSR has improved the performance of the protocol. In the TGPSR, the transmission of the data packets has a high tolerance to the location accuracy of destination node. The destination node can receive the data packets successfully, even if the location of the destination node is inaccurate.As a branch of Mobile Ad Hoc Mobile, Vehicle Ad Hoc Networks has broad application prospect. In order to realize TGPSR protocol in Vehicle Ad Hoc Networks, we propose the road delay model according to the impact of delay in different road sense. In TGPSR protocol, according to road delay model and the different of road sense, the forwarding path is selected, and then the next hop is selected by greedy strategy. Finally, through simulating Vehicle Ad Hoc Networks to analyze the performance of TGPSR in it, we find that TGPSR route protocol has better performance.