For LaTeX users

To insert the copyright text please use the following code (thanks to Marco Fagiani)

(above \maketitle)

\IEEEoverridecommandlockouts
\IEEEpubid{\begin{minipage}{\textwidth}\ \\[136pt]
\centering\normalsize{978-1-5090-2320-2/16/\$31.00~\copyright2016 IEEE}
\end{minipage}}

(add somewhere in the second column of the first page)

\IEEEpubidadjcol