Dynamic Backup Multipath Routing for Improving Route Stability in Mobile Ad Hoc Networks
Chiyong Dong · Xi'an Jiaotong Daxue xuebao · 2010
In mobile Ad Hoc networks,for the expiration of backup route,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.