X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/ThesisAli.git/blobdiff_plain/4db673f695b83fcf69011cdea52cb6d3d7c78892..433012874584d03b48d32d4cdba05eeb3b28dbe6:/CHAPITRE_06.tex diff --git a/CHAPITRE_06.tex b/CHAPITRE_06.tex index 6ac91bf..d7479d2 100755 --- a/CHAPITRE_06.tex +++ b/CHAPITRE_06.tex @@ -8,7 +8,7 @@ \label{ch6} -\section{summary} +\section{Summary} \label{ch6:sec:01} The most important problem in a Wireless Sensor Network (WSN) is to optimize the @@ -26,7 +26,7 @@ sensors' activities. Extensive simulation experiments have been performed using OMNeT++, the discrete event simulator, to demonstrate that PeCO can offer longer lifetime coverage for WSNs in comparison with some other protocols. -\section{THE PeCO PROTOCOL DESCRIPTION} +\section{The PeCO Protocol Description} \label{ch6:sec:02} \noindent In this section, we describe in details our Lifetime Coverage @@ -183,7 +183,7 @@ the area. \begin{figure}[t!] \centering -\includegraphics[width=95.5mm]{Figures/ch6/Model.pdf} +\includegraphics[scale=0.80]{Figures/ch6/Model.pdf} \caption{PeCO protocol.} \label{fig2} \end{figure} @@ -441,7 +441,7 @@ substantial increase of the coverage performance. \parskip 0pt \begin{figure}[h!] \centering - \includegraphics[scale=0.5] {Figures/ch6/R/CR.eps} + \includegraphics[scale=0.8] {Figures/ch6/R/CR.eps} \caption{Coverage ratio for 200 deployed nodes.} \label{fig333} \end{figure} @@ -463,7 +463,7 @@ Figure \ref{fig333}. \begin{figure}[h!] \centering -\includegraphics[scale=0.5]{Figures/ch6/R/ASR.eps} +\includegraphics[scale=0.8]{Figures/ch6/R/ASR.eps} \caption{Active sensors ratio for 200 deployed nodes.} \label{fig444} \end{figure} @@ -487,8 +487,8 @@ while keeping a good coverage level. \begin{figure}[h!] \centering \begin{tabular}{@{}cr@{}} - \includegraphics[scale=0.475]{Figures/ch6/R/EC95.eps} & \raisebox{2.75cm}{(a)} \\ - \includegraphics[scale=0.475]{Figures/ch6/R/EC50.eps} & \raisebox{2.75cm}{(b)} + \includegraphics[scale=0.8]{Figures/ch6/R/EC95.eps} & \raisebox{4cm}{(a)} \\ + \includegraphics[scale=0.8]{Figures/ch6/R/EC50.eps} & \raisebox{4cm}{(b)} \end{tabular} \caption{Energy consumption per period for (a)~$Lifetime_{95}$ and (b)~$Lifetime_{50}$.} \label{fig3EC} @@ -515,8 +515,8 @@ Figure~\ref{fig3LT}(a) because the gain induced by our protocols increases with \begin{figure}[h!] \centering \begin{tabular}{@{}cr@{}} - \includegraphics[scale=0.475]{Figures/ch6/R/LT95.eps} & \raisebox{2.75cm}{(a)} \\ - \includegraphics[scale=0.475]{Figures/ch6/R/LT50.eps} & \raisebox{2.75cm}{(b)} + \includegraphics[scale=0.8]{Figures/ch6/R/LT95.eps} & \raisebox{4cm}{(a)} \\ + \includegraphics[scale=0.8]{Figures/ch6/R/LT50.eps} & \raisebox{4cm}{(b)} \end{tabular} \caption{Network Lifetime for (a)~$Lifetime_{95}$ and (b)~$Lifetime_{50}$.} \label{fig3LT} @@ -535,7 +535,7 @@ size. DiLCO is better for coverage ratios near 100\%, but in that case PeCO is not ineffective for the smallest network sizes. \begin{figure}[h!] -\centering \includegraphics[scale=0.5]{Figures/ch6/R/LTa.eps} +\centering \includegraphics[scale=0.8]{Figures/ch6/R/LTa.eps} \caption{Network lifetime for different coverage ratios.} \label{figLTALL} \end{figure}