Research of dynamic channel allocation algorithm for multi-radio multi-channel VANET

In order to achieve reasonable dynamic allocation of communication channels between the vehicle nodes in multi-radio multi-channel VANET,this paper proposed a dynamic channel allocation algorithm based on channel switching queue between two communication vehicle nodes.It defined the radio status of vehicle node,proposed the channel performance factor and the generating method of the channel switching queue.By comprehensive considering the radio status and channel switching queue of the both sides of communication vehicle nodes,it established communication links fast independently.It solved the channel fair access and unreasonable allocation.Through software simulation,this algorithm reduces the average end-toend delay,increases the network average throughput and significantly improves the network performance of multi-radio multichannel VANET.