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In this blog, I will show you some basic concepts of OFDM In DOCSIS3.1.  To make it more intelligible, the graph i drawn is showing as follows (some of these concept named by myself, so as to make it

In this blog, I would like to introduce some basic OFDM concepts(in DOCSIS 3.1), which are concluded by myself or referred to the internet.  And the main point is the technology of transformation between frequency and time domain.