Impact of Node Velocity and Density on Probabilistic Flooding and its Effectiveness in MANET?

In recent year wireless network become more popular due to growth of mobile devices. The fundamental data dissemination mechanism in mobile ad hoc network (MANET) is broadcasting. However, broadcasting mechanism brings severe performance degradation in network due to its excessive redundant retransmission, collision, and contention. Traditionally flooding techniques was used as popular broadcasting techniques. But it generates large number of rebroadcast messages in order to reach all network nodes. Probabilistic flooding techniques have been suggested to reduce excessive redundant transmission. In this paper, we investigate the effect of node velocity, pause time and network density in the performance of probabilistic flooding techniques in MANET with respect to saved rebroadcast (SRB), rechability (RE) and success rate(SR) using NS2 simulator. Our result shows that all these parameter have strong impact on the probabilistic techniques.