Source-based broadcast protocol for vehicular ad hoc networks

This paper proposes a source-based vehicular broadcast protocol to mitigate broadcast storms and to reduce the end-to-end delay. To alleviate a broadcast storm in VANETs, it is ideal that the vehicle furthest away from the broadcaster performs the rebroadcasting. Therefore, the proposed scheme selects the best rebroadcasting vehicles that are farther away from the broadcaster based on a neighbor table. The performance of the proposed scheme was compared with DV-CAST. The simulation results show that the performance of the proposed SB-CAST protocol is better than that of DV-CAST in terms of end-to-end packet delay and network overhead.