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Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves can range from small passive microsensors to larger scale, controllable weather-sensing platforms. Presently, there are many research work for sensor networks. In our previous work, we implemented a simulation system for sensor networks and simulated the proposed system with reactive and preactive protocols. In this work, we want to investigate how the sensor network performs in case of using OLSR protocol and compare the simulation results with AODV protocol. The simulation results have shown that the consumed energy for OLSR protocol is better than AODV protocol. Also, the goodput for the case of using OLSR does not change too much compared with the case using AODV, but the goodput is not good when the number of nodes is increased.