Patent ID: 8289186

Claim:
A method for wireless communication between nodes including a node moving on a road comprising the steps of: obtaining a node data of the first node including a position, a velocity and a moving direction of the first node; receiving a node data of at least one second node including a position, a velocity and a moving direction from the at least one second node with using wireless communication; calculating at lease one relative position between the first node and the at least one second node based on the node data of the first node and the node data of the at least one second node; determining whether the road of the moving direction of the first node is congested or not, and a density of nodes when the road of the moving direction of the first node is congested, based on the node data of the at least one second node, the at least one relative position, the velocity of the first node, and the moving directions of the first node and the second node; and starting a sending process of the node data of the first node and/or the node data of the at least one second node with a frequency set to be decreased inversely proportional to the density of nodes.