A Directional Geocast Warning Dissemination Protocol for Vehicular Ad Hoc NETworks (VANETs)

摘要: Multi-hop broadcasting is commonly used by safety applications in Vehicular Ad Hoc Networks (VANETs). By using a multi-hop technique and relay nodes, sender VANET can reach all other nodes outside of its communication range. A major problem with this well-known flooding approach the congestion it causes on network. Recently proposed protocols aim to reduce decreasing number relaying nodes. However, performing broadcast at each hop same message be received multiple times located between two relays (intermediate nodes). To deal problem, we propose Directional Geocast (DGcast) dissemination protocol aimed distributing warning messages VANET. The filters data according region addressed. We evaluated performance DGcast compared results those obtained previous protocols. outperforms peers term latency redundancy.