-\subsubsection{\textcolor{blue}{Energy Saving Ratio (ESR)}}
-
-%\textcolor{blue}{In this experiment, we study the energy saving ratio, see Figure~\ref{fig5}, for 200 deployed nodes.
-%The larger the ratio is, the more redundant sensor nodes are switched off, and consequently the longer the network may liv%e. }
-
-\textcolor{blue}{The simulation results show that our protocol PeCO allows to
- efficiently save energy by turning off some sensors during the sensing phase.
- As shown in Figure~\ref{fig5}, GAF provides better energy saving than PeCO for
- the first fifty rounds, because GAF balances the energy consumption among
- sensor nodes inside each small fixed grid and thus permits to extend the life of
- sensors in each grid fairly but in the same time turn on large number of
- sensors during sensing that lead later to quickly deplete sensor's batteries
- together. After that GAF provide less energy saving compared with other
- approaches because of the large number of dead nodes. DESK algorithm shows less
- energy saving compared with other approaches due to activate a large number of
- sensors during the sensing. DiLCO protocol provides less energy saving ratio
- compared with PeCO because it generally activate a larger number of sensor
- nodes during sensing. Note that again as the number of rounds increases PeCO
- becomes the most performing one, since it consumes less energy compared with
- other approaches.}
+\subsubsection{\textcolor{green}{Energy Saving Ratio}}
+
+
+\textcolor{green}{The simulation results show that our protocol PeCO saves
+ efficiently energy by turning off some sensors during the sensing phase. As
+ shown in Figure~\ref{fig5}, GAF provides better energy saving than PeCO for
+ the first fifty rounds. Indeed GAF balances the energy consumption among
+ sensor nodes inside each small fixed grid and thus permits to extend the life
+ of sensors in each grid fairly. However, at the same time it turns on a large
+ number of sensors and that leads later to quickly deplete sensor's batteries.
+ DESK algorithm shows less energy saving compared with other approaches. In
+ comparison with PeCO, DiLCO protocol usually provides lower energy saving
+ ratios. Moreover, it can be noticed that after round fifty, PeCO protocol
+ exhibits the slowest decrease among all the considered protocols.}
