Open AccessPerformance Analysis of OLSR Protocol in Manet Considering Different Mobility Speed and Network Density
Author(s) -
Koay Yong Cett,
Nor Aida Mahiddin,
Fatin Fazain Mohd Affandi,
Raja Hasyifah Raja Bongsu,
Aznida Hayati
Publication year - 2021
Publication title -
international journal of wireless and mobile networks
Language(s) - English
Resource type - Journals
eISSN - 0975-4679
pISSN - 0975-3834
DOI - 10.5121/ijwmn.2021.13602
Subject(s) - computer network , optimized link state routing protocol , computer science , link state routing protocol , routing protocol , mobile ad hoc network , wireless routing protocol , zone routing protocol , distributed computing , destination sequenced distance vector routing , dynamic source routing , network packet
A Mobile Ad Hoc Network (MANET) is created when an independent mobile node network is connected dynamically via wireless links. MANET is a self-organizing network that does not rely on pre-existing infrastructure such as wired or wireless network routers. Mobile nodes in this network move randomly, thus, the topology is always changing. Routing protocols in MANET are critical in ensuring dependable and consistent connectivity between the mobile nodes. They conclude logically based on the interaction between mobile nodes in MANET routing and encourage them to choose the optimum path between source and destination. Routing protocols are classified as proactive, reactive, or hybrid. The focus of this project will be on Optimized Link State Routing (OLSR) protocol, a proactive routing technique. OLSR is known as the optimized variant of link state routing in which packets are sent throughout the network using the multipoint relay (MPR) mechanism. This article evaluates the performance of the OLSR routing protocol under condition of changing mobility speed and network density. The study's performance indicators are average packet throughput, packet delivery ratio (PDR), and average packet latency. Network Simulator 2 (NS-2) and an external patch UM-OLSR are used to simulate and evaluate the performance of such protocol. As a result of research, the approach of implementing the MPR mechanism are able to minimise redundant data transmission during the normal message broadcast. The MPRs enhance the link state protocols’ traditional diffusion mechanism by selecting the right MPRs. Hence, the number of undesired broadcasts can be reduced and limited. Further research will focus on different scenario and environment using different mobility model.