A Geocast scheme based on Successful Transmission Records on Wireless Ad Hoc Networks
明寛 野本, Gen Tsuchida, Susumu Ishihara · 2006
In this paper we propose an efficient geocasting scheme based on flooding for cases where a source node sends re-quest messages to nodes in the destination area and receives replies from some of them, Geocasting based on Successful Transmission Records (GSTR). Generally geocast protocols based on flooding generate many redundant messages which generate transmission errors. In GSTR, each node records whether it has forwarded a reply message for a query message that the node forwarded to the destination region. Using these records, each node decides the delay before rebroadcast of geocasting a message to avoid forwarding of redundant query messages and forward the message along a suitable path by priority. Simulation results showed that the proposed scheme re-duces collisions and response time to queries, and achieves high success ratio.