%More precisely, the scheduling of nodes' activities (sleep/wake up duty cycles)
%is achieved in each subregion by a leader selected after cooperation between
%nodes within the same subregion.
-The novelty of our approach lies essentially in the formulation of a new
+The novelty of our approach lies essentially in the formulation of a new
mathematical optimization model based on the perimeter coverage level to schedule
sensors' activities. Extensive simulation experiments have been performed using
OMNeT++, the discrete event simulator, to demonstrate that PeCO can
% Note that keywords are not normally used for peerreview papers.
\begin{IEEEkeywords}
-Wireless Sensor Networks, Area Coverage, Network lifetime, Optimization, Scheduling.
+Wireless Sensor Networks, Area Coverage, Network Lifetime, Optimization, Scheduling.
\end{IEEEkeywords}
\IEEEpeerreviewmaketitle
