Paper title: Performance Evaluation of an Energy-Efficient MAC Scheduler by using a Test Bed Approach

Authors: Daniele Alessandrelli, Luca Mainetti, Luigi Patrono, Giovanni Pellerano, Matteo Petracca, Laura Stefanizzi

Abstract: A Wireless Sensor Network consists of a large number of sensor nodes that are usually battery powered and deployed in large areas in which change or recharge batteries could result completely unfeasible. Therefore, energy efficiency represents one of the main design objectives for these networks and, since radio communications consume the majority of mote energy, the development of Medium Access Control protocols able to minimize the radio energy consumption is a very attractive research area. This paper presents an energy efficient communication protocol and its implementation in the Contiki Operating System. The performance and the portability of the proposed solution have been greatly evaluated by means of both simulations, carried out using the Contiki’s simulations tools (i.e., Cooja and MPSim), and test beds based on two different platforms. Results obtained show that the proposed scheme significantly reduces the power consumption with respect to the IEEE 802.15.4 standard solution, already implemented in Contiki.