\documentclass[12pt,a4paper,conference,onecolumn]{IEEEtran}
\voffset=1.5cm 
\hoffset=1.1cm
\textwidth 16 true cm 
\textheight 23 true cm

\begin{document}
\title{Paper Title}
\date{}

\author{
\IEEEauthorblockN{Author1$^{*}$, Author2, Author3}
\IEEEauthorblockA{Uni1\\Country1\\Email: Author1@Author.edu
\thanks{$^{*}$ This work has been supported by ***, under grant ***.}}
\and
\IEEEauthorblockN{Author4}
\IEEEauthorblockA{Uni2\\Country2\\Email: Author4@Author.edu}}
\maketitle

\begin{abstract}
The abstract goes here.
\end{abstract}

\section{Introduction}
Section text here \cite{Shannon}.

\subsection{Subsection Heading Here}
Subsection text here.

\subsubsection{Subsubsection Heading Here}
Subsubsection text here.

\section{Main part}

\subsection{Class options}
Class options are \\
$\backslash \hbox{documentclass[12pt,a4paper,conference,onecolumn]\{IEEEtran\}}$

\subsection{The latest version}
The latest version and documentation of IEEEtran can be obtained at: \\
http://www.ctan.org/tex-archive/macros/latex/contrib/IEEEtran/

\section{Conclusion}
The conclusion goes here.

\section*{Acknowledgment}
The authors would like to thank...

\begin{thebibliography}{1}

\bibitem{Shannon}
C. E. Shannon, ``A mathematical theory of communication,'' 
\emph{Bell Syst. Tech. J.}, vol. 27, pp. 379--423, 1948.

\end{thebibliography}

\end{document}
