the existing 802.11 standards can be
optimized (especially in terms of energy-efficiency) to make Wi-
Fi suitable for a wide range of IoT applications. However, there
is a lack of low-cost embedded platforms that can be used for
experimentation with 802.11 MAC protocol. The vast majority
of low-power Wi-Fi modules for embedded systems has closed
source firmware and protocol stack implementations, which
prevents the implementation and the testing of new protocol
features. In this paper we describe Contiki80211, an open source
802.11 radio link layer implementation for Contiki OS