a dynamic backup routing(DBR)protocol is proposed. The primary path with smallest hop count between source and destination is discovered by flooding
and the local backup paths are set up for each link in the primary path with periodic HELLO packets. There is less backup path expiration since the backup path with longest lifetime is selected for each link. Furthermore
less control overhead is introduced since periodic HELLO packets are made good use of during backup path construction. The theoretical analysis shows DBR protocol better adapts to higher node-density mobile environment
and simulation results also indicate the good performance in high-mobility environment.
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references
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