Wireless sensor networks simulators – computer simulation tools

With the development of embedded systems and network technologies there was a need to find a device that will be used for measurements and at the same time it will be economical. Wireless sensors, using self-configuring sensors\ud are perfect for this purpose. With the sensors it was ensured traceability of the physical conditions of the environment (temperature, humidity, vibration, pressure, sound, movement, etc.) with very low power consumption and high precision. The sensors also have the ability to transmit and return data to a base station. But before implementing, you have to use the simulator to test these\ud sensors, especially in the initial phase of these designs. The cost to simulate thousands of nodes networks is very low, and the simulation can be completed in a short time. Therefore, simulation of WSN is of great importance for the\ud development of WSN. Protocols, schemes or even new ideas can be assessed in very large sizes. WSN simulators allow users to isolate different factors with setting up configurable parameters. In this paperwork we have used two\ud simulators: Network Simulator 2 and Omnet++