Switching Method of Single Radio Multi-Channels for Vehicular Ad hoc Network

This paper proposes a multi-channel switching method to consider the node density and service traffic. The nodes in the network are divided into three modes according to the node density and service information flow in nodes. The message is delivered in different patterns for different modes. The judging of the three modes and switching between them are studied. The switching method is simulated on OMNET++ platform and its performance is evaluated.