Urban multi-hop broadcast protocol for inter-vehicle communication systems
作者： Gökhan Korkmaz , Eylem Ekici , Füsun Özgüner , Ümit Özgüner
关键词:
摘要: Inter-Vehicle Communication Systems rely on multi-hop broadcast to disseminate information locations beyond the transmission range of individual nodes. Message dissemination is especially difficult in urban areas crowded with tall buildings because line-of-sight problem. In this paper, we propose a new efficient IEEE 802.11 based protocol (UMB) which designed address storm, hidden node, and reliability problems areas. Thisprotocol assigns duty forwarding acknowledging packet only one vehicle by dividing road portion inside into segments choosing furthest non-empty segment without apriori topology information. When there an intersection path message dissemination, directional broadcasts are initiated repeaters located at intersections. We have shown through simulations that our has very high success rate channel utilization when compared other flooding protocols.
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