IEEE 802.11 wireless network standard has become one of the most used wireless networking technologies for smart devices as it offers mobility support and low cost deployment. However, these devices deeply rely on the energy provided by their batteries, which results in limited running time. IEEE 802.11 network standard provides stations with carrier sense multiple access with collision avoidance for the medium access. Yet it results in stations to consume an important amount of power. Therefore, minimizing WiFi-based energy consumption in smart devices has been received substantial attention in both academia and industry. Accordingly, this paper* proposes a novel beacon-based energy-efficient collision-free medium access control protocol for any type of