Wireless Sensor Network (WSN) has been considered as a distinguished ad hoc network that can be employed to satisfy multiple applications and tasks. Since a WSN contains hundreds of small size, low cost and battery powered sensor nodes. These nodes have the data processing capabilities and event sensing capabilities. Number of routing protocols has been carried out to perform routing in these networks. In this paper, an effort have been made to measure the performance of DSR and OLSR routing protocol employing Random Waypoint model and also examine how well these chosen protocols performs on WSNs, in fixed environments, employing OPNET 16.0 Simulation tool.