A Tri-Classes Method for Studying the Impact of Nodes and Sinks Number on Received Packets Ratio of MANETs Routing Protocols

Mobile Ad hoc Networks (MANETs) consist of a set of mobile nodes connected together without any wired or physical infrastructure., which makes nodes independent and simple in deployment. The arbitrary movement of nodes within appropriate range area makes dynamic network and routing between there nodes is difficult. In MANETs the routes are performed by the source nodes (sinks) that establish the network without central access point., so number of sinks is very important in MANETs. When the nodes moving at a variant speed thus making unpredicted network that have unspecific topology. That networks have many limitations such as low energy due to the battery powered of its nodes. Therefore, routing protocols must be used based on the mobility., suitable nodes and sinks numbers, and reducing the energy consumption of the nodes. In this research we proposed a methods consist of three classes (Tri-Classes) to study the impact of changing numbers of nodes and sinks on Received Packets Ratio (RPR) for different MANETs routing protocols, the comparison includes the four major routing protocols., AODV (Ad hoc On Demand Distance Vector), DSDV (Destination Sequenced Distance Vector), DSR(Dynamic Source Routing), and OLSR (Optimized Link State Routing) under various nodes size (50, 100, and 250 nodes) and variant numbers of sinks (5, 10, and 15). We observed that the RPR is completely affected by changing numbers of nodes and sinks. In general we obtain best RPR by increasing nodes and sinks numbers. The protocols were simulated using Network Simulator 3 (NS3).