Implementation and validation of an energy-efficient MAC scheduler for WSNs by a test bed approach

The paper presents an energy efficient MAC scheduler for wireless sensor networks, and its implementation in the Contiki Operating System. Simulations performed using the Contiki´s simulations tools (i.e., Cooja and MPSim) show that the proposed scheme reduces the power consumption with respect to the ZigBee standard solution and the X-MAC protocol, already implemented in Contiki. Furthermore, the functionality and the portability of the implementation are validated using two test beds based on two different platforms.