% \label{pcm2sensors}
\end{figure}
-\vspace{-0.5cm}
-\textcolor {red} {For example, the interval between 3R to 4R is covered by 4 sensors (0,1,2,4), it means the coverage level is 4}
+\vspace{-0.9cm}
+\textcolor {red} {Set of sensors involved in coverage interval of sensor 0 between 3R to 4R $\Rightarrow$ [0,1,2,4]\\
+Maximum coverage level: 4
+}%$a^0_{i0}= 1$
+%For example, the interval between 3R to 4R is covered by 4 sensors (0,1,2,4), it means the coverage level is 4
\end{frame}
