There is a great deal of overlap and confusion when it comes to IoT standards. Device developers and design engineers understandably have lots of questions. Cees Links, CEO, GreenPeak Technologies, has written a whitepaper covering who is doing what and why it matters, guiding readers through the various layers to try and make sense of it all.
This whitepaper provides an overview of the most important contenders around the IoT wireless communication standards. For the sake of argument, and to keep it simple, the cellular standards have been left out, although they do play an important role in the IoT (and the so-called M2M business). RFID, which can be quite useful for the IoT for security purposes, but is less contentious as it is more of an electronic bar code replacement than a means for real (two-way) communication, has also been excluded.
Also for simplicity, the proprietary pseudo standards like ANT+, Z-Wave and EnOcean have been cut. This is for the simple reason that, like other 'non-standard' proprietary standards, they will not be able to survive against industry accepted international standards in the long run.
These IoT connectivity solutions can be split up into three horizontal (combinations of) layers:
Download and read the the full whitepaper below.