Performance Evaluation of Optimized Link State Routing Protocol over TCP Traffic in Mobile Ad-Hoc Networks

Alaa Eldin A. Y. Abdalla, Mohamed A. A. Elmaleeh, Mohamed H. M. Nerma[


Mobile Ad-Hoc Network (MANET) is a wireless network without infrastructure. Optimized Link State Routing protocol (OLSR) is a proactive MANET routing protocol used in (MANET).In this paperthe performance of OLSR protocol is evaluatedby considering the three routing aspects: scalability, network load and mobility. File Transfer Protocol (FTP) and Transmission Control Protocol (TCP) traffics are used over the designednetwork. The performance metrics delay, routing overhead, and throughput are used in the performance analysis. OPNET Modeler 14.5 is used as a simulator. The simulation results show that by increasing the number of nodes the OLSR floods the network with a high amount of routing traffic. It is found that the variationsin the number of nodes and thenetworkspeeddo not significantly affect the performance of OLSR in terms of end-to-end delay and throughput. This is because OLSR builds and maintains consistent paths resulting in low delay and high throughput.

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