Résumé:
Probabilistic flooding schemes use probabilities to help a node decide whether it rebroadcasts its
transiting packet or not. Even though probabilistic schemes have been around for a while, only a
few research attempts have analyzed the performance behavior in a Mobile Ad Hoc Network
(MANET) environment. Our present study investigates the effects of mobility, injected traffic load
and network density on the performance of probabilistic flooding in MANETs. In order to reach
our goal, we have implemented probabilistic flooding in the widely used ns-3 discrete-event
simulator. After extensive testing through our ns-3 simulator the collected statistics have revealed
that the performance metrics including reachability and saved rebroadcast are heavily affected
by the injected traffic load and node mobility. Moreover, our performance results have revealed
that increasing network mobility results in a decreasing reachability and a high saved rebroadcast.
