Analysis and Simulation for Mobile Ad Hoc Network Using QualNet Simulator

Abstract In this study, QualNet Simulator has been used as an environment for testing and simulation in addition to analysis due to its accuracy in results, speed, and ease of portability, thus obtaining actual results before deploying the sensors and computers in the real world. The objective of this study is to establish a scenario to compare the performance of the AODV, DSR, and OLSR routing protocols. The simulation in this study comprises four main steps. Initially, the MANET environment was constructed (analyze the performance of a scalable network). In the last step, a simulation scenario has been used with some parameters like Packet Delivery Ratio and EndtoEnd Delay in five CBR lines of 50 nodes. Finally, the results show which protocol performs better than another which corresponds to different traffic loads. And all those results depend on The CBR line that arrived between the nodes. We obtain some conclusion that AODV has the lowest delay at the End to End Delay and OLSR the highest. The signal obtained by the AODV is less error and maximum for DSR. While OLSR has the least Queue-length. The highest number of packets in DSR and the lowest number in OLSR is obtained.