,Mobility Metric for Adaptive Routing
–Relative mobility: good correlation to the routing
performance but need extra device to monitor
node’s speed, global knowledge needed
–Link duration: need global knowledge, not very sensitive
sometimes, highly sensitive at other
times….
–Number of link breaks is a good choice: good correlation
to the routing performance, simple
and easy to obtain
–Mobility is highly dynamic/variable
,Single node experiences vastly different environment at
different times
,Multiple nodes may experience vastly different
environment at the very same moment
,Next step
–Apply mobility metric to a routing protocol
–Show that allowing nodes to individually adjust protocol
behavior is beneficial