Assessment of Throughput Performance Under OPNET Modeler Simulation Tools in Mobile Ad Hoc Networks (MANETs)

In order for simulation studies to be useful, it is very important that the simulation results match as closely as possible with the test bed results. In this Paper, we study the throughput performance in Mobile Ad Hoc Networks (MANETs) and compares emulated test bed results with simulation results from OPNET (Optimized Network Engineering Tool). The performance of the Mobile Ad Hoc Networks is very sensitive to the number of users and the offered load. When the number of users/offered load is high then the collisions increase resulting in larger wastage of the medium and lowering overall throughput. The aim of this research is to compare the throughput of Mobile Ad Hoc Networks using three different scenarios: 10, 15 and 20 users using simulator OPNET Modeler 14.0. By analyzing the graphs in MANETs, it is concluded When the number of users is increased beyond the certain limit, throughput decreases.