OPTIMIZED AND EFFICIENT OSLSR ROUTING PROTOCOL IN WIRELESS MESH NETWORK

Abstract WMN (Wireless Mesh Network) plays a significant role in the upcoming inventions of wireless communication networks. These networks adapt self-configuration, self-organizing and self-healing characteristics. It allows the fast deployment, low cost, simple maintenance, reliable services, and high scalability along with attractive network facility, connectivity, and flexibility. Problem Statement: A big challenge that this network is facing is security from attacks. This network is more vulnerable to various attacks from within the network as well as from outer sources. These attacks disturb the routing data and therefore reduce the performance of the network. Objectives: In current work, evaluation is concerned for DDoS (Distributed Denial of Service) attack and wormhole attacked in the network. The results indicate that the impact of the wormhole and DDoS attacks can affect various parameters of the network as throughput, packet delivery, delay, energy, and overhead and packet loss in the communication network. It affects the nodes in WMN and thus degrades the overall network performance. Hence, there is the utmost significance of overcoming these attacks. Methodology: In this research, we designed a novel OSOLSR algorithm for the prevention and detection of the malicious nodes in the network. Results and conclusion: The accuracy of the proposed technique is measured in terms of throughput, delay, packet delivery rate, energy, overhead, and packet loss. In this research work, performance evaluation defines PDR (Packet Delivery Rate) value is 95% using OSOLSR new method with no attack, as attack increases the PDR decreases like Wormhole attack PDR value is 70 % and DDOS attack PDR value is 60%, also throughput value with wormhole and DDoS attack value is 54 %, 81% decreased considerably and OSOLSR method and MATLAB 2016a simulation tool given promising results.