\label{eq14}
\end{equation}
-\noindent Our coverage optimization problem can then be formulated as follows\\
+\noindent Our coverage optimization problem can then be formulated as follows
\begin{equation} \label{eq:ip2r}
\left \{
\begin{array}{ll}
\end{array}
\right.
\end{equation}
+
+
+
\begin{itemize}
\item $X_{j}$ : indicates whether or not the sensor $j$ is actively
sensing in the round (1 if yes and 0 if not);
round.
-
-
\section{Simulation results}
\label{exp}
