One-hop vs. multi-hop broadcast protocol for DSRC safety applications

In vehicle-to-vehicle communication, safety messages could be broadcasted over one-hop or multi-hop using different transmission ranges to warn each other of changing conditions or dangers ahead. We investigate the broadcast performance considering one-hop and multi-hop transmissions and study the effect of different transmission ranges on the multi-hop broadcasting performance. Our results show that multi-hop transmission can provide significant performance improvement when the transmission range is chosen appropriately.