Intersection-based forwarding protocol for vehicular ad hoc networks

Vehicular ad hoc networks (VANETs) make the transmission between vehicles possible without infrastructure. However, ad hoc networks also increase the redundancy of networks. To decrease the redundancy of networks and make VANETs more efficient, we introduce the new routing protocol: intersection-based forwarding protocol (IBFP). In urban-area, we set virtual ports (VP) at each intersection. The virtual port is served by stopping vehicle which is waiting for the traffic light in front of the intersection. VP will gather all the packets that need to be forwarded from all passing by vehicles. When VP leaves this intersection, it will transmit all the copies of packets to the next VP. As the movement of VP, packets can be transmitted to every intersection in a very short period of time like the epidemic process. Destination vehicles can receive packets with high success rate. The epidemic process only exists among VPs. Therefore, on the premise of high success rate, the proposed IBFP can transmit packets with less delay and redundancy.