Performance Evaluation of QoS Aware Routing in OLSR (Optimized Link State Routing Protocol) Using Genetic Algorithm

A MANET is a dynamic multi – hop network established by a group of mobile nodes on a shared Wireless channels by virtue of their proximity to each other. To support mobility to users generally low configure nodes are in use, so limited resources, dynamic network topology and link variations are some of the issues in MANET. Routing in such dynamic environment is a challenge issue, lots of work have been done for routing but still QoS(Quality of Service) requirements of the network is not satisfied because to find an optimal path in dynamic networks is a NP complete problem. The main objective of this paper is to find a feasible path that has sufficient resources to satisfy the network constraints. In this paper we have applied multi object genetic algorithm optimize four QoS parameters such as delay ,bandwidth, traffic from adjacent nodes and number of hops that assists a QoS model in meeting timing requirements and improves in global network performance. Analyze is done for OLSR protocol based on how the protocol finds out its MPR sets and MPR to route a packet from source to destination.