
482 ◾ Mobile Ad Hoc Networks: Current Status and Future Trends
order to increase the certainty, more metrics observations are needed. is is evidence that proto-
cols which use very few metrics for their decisions are very likely to fail often.
On the other hand, the BN can also be used to find the most probable status of every variable
in a path that is witnessed to have stable performance. In Figure 18.6, the BN gives the probabil-
ity distributions when there is the evidence that the path has stable performance. In that case, as
expected, it is more probably that all metrics are in a higher quality state. Figure 18.6 the states
with the hig ...