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.