A third simple RDC layer is ''sicslowmac.c'' (''core/net/mac/sicslowmac.c''). This is a RDC layer with no energy savings and that uses IEEE 8021.5.4 frames.

A third simple RDC layer is ''sicslowmac.c'' (''core/net/mac/sicslowmac.c''). This is a RDC layer with no energy savings and that uses IEEE 8021.5.4 frames.

The three last protocols available in ''ContikiOS'' are implementations of popular asynchronous MAC protocols that aim at energy saving; namely '''X-MA'''C, '''ContikiMac''' and '''LPP'''. X-MAC is a short-preamble protocol from 2006 that was ported to ContikiOS [1]. X-MAC has two different implementation in ContikiOS, which can be found in files ''core/net/mac/cxmac.c'' and ''core/net/mac/xmac.c''; the implementation in cxmac.c is a relaxed implementation that does not require stringent timing precision and work on larger number of platforms. ContikiMac [2] is a protocol that proposes enhancement over X-MAC. The implementation can be found in file ''core/net/mac/contikimac.c''. Finally, LPP (Low Power Probing) is a receiver-initiated low power protocol from 2008 that was also ported to ContikiOS [3]; the code can be found in ''core/net/mac/lpp.c''.

The three last protocols available in ''ContikiOS'' are implementations of popular asynchronous MAC protocols that aim at energy saving; namely '''X-MA'''C, '''ContikiMac''' and '''LPP'''.