TAILIEUCHUNG - Performance analysis of OLSR and modified version of OLSR-ETX/MD/ML in mesh networks

In this paper we have tried to implement some of the OLSR protocols and have compared their performance in various terms like packet delivery ratio, average throughput and normalized routing load. We found that the original OLSR suffers from low bandwidth and throughput. | ISSN:2249-5789 Annu Pandey et al, International Journal of Computer Science & Communication Networks,Vol 2(2), 268-271 Performance Analysis of OLSR and Modified Version of OLSR-ETX/MD/ML in Mesh Networks Annu Pandey[1] Student Computer Science and Engineering Amity University Sector 125 Noida, India pandey_annu18@ Manoj Baliyan[2] Assistant Professor Computer Science and Engineering Amity University Sector 125 Noida, India manojbaliyan@ Abstract—The mobile ad hoc network is one of the most emerging technologies in the present scenario. Enormous progress and development has been done in this area and much more needs to be done yet. Several protocols are present for MANET. Many of them are being used so far very efficiently. Optimal Link State Routing Protocol is one of them. It is the proactive table driven routing protocol that is it shares the information periodically with its neighbour. However to avoid the flooding, OLSR chooses Multipoint Relays. These MPRs are selected nodes in the network to which packets will be forwarded for further transmission. In this paper we have tried to implement some of the OLSR protocols and have compared their performance in various terms like packet delivery ratio, average throughput and normalized routing load. We found that the original OLSR suffers from low bandwidth and throughput. However it can be overcome trough OLSR-MD and OLSR-ETX as their performance was measured good in almost all the scenarios with respect to minimum delay. The selection process of the MPR is different in each version of OLSR which in turn results in different performanceof these versions. Keywords - multipoint relay, OLSR, packet delivery ratio, throughput, normalized routing load. I. INTRODUCTION In the OLSR routing protocol, the MPR plays a very crucial role in forwarding the packet. Thus its selection should be very efficient. Through MPR the packets are forwarded further in the network without flooding the network. Each .

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