\caption{Main characteristics of some coverage approaches in previous literatures.}
\begin{tabular}{@{} cl*{13}c @{}}
& & \multicolumn{10}{c}{Characteristics} \\[2ex]
- & & \mcrot{1}{l}{50}{\footnotesize Distributed} & \mcrot{1}{l}{50}{\footnotesize Centralized} & \mcrot{1}{l}{50}{ \footnotesize Area coverage} & \mcrot{1}{l}{50}{\footnotesize Target coverage} & \mcrot{1}{l}{50}{\footnotesize k-coverage} & \mcrot{1}{l}{50}{\footnotesize Heterogeneous nodes}& \mcrot{1}{l}{50}{\footnotesize Homogeneous nodes} & \mcrot{1}{l}{50}{\footnotesize Disjoint sets} & \mcrot{1}{l}{50}{\footnotesize Non-Disjoint sets} & \mcrot{1}{l}{50}{\footnotesize Energy-Efficient} & \mcrot{1}{l}{50}{\footnotesize Work in Rounds} & \mcrot{1}{l}{50}{\footnotesize Adjustable Radius} \\
+ & & \mcrot{1}{l}{50}{\footnotesize Distributed} & \mcrot{1}{l}{50}{\footnotesize Centralized} & \mcrot{1}{l}{50}{ \footnotesize Area coverage} & \mcrot{1}{l}{50}{\footnotesize Target coverage} & \mcrot{1}{l}{50}{\footnotesize k-coverage} & \mcrot{1}{l}{50}{\footnotesize Heterogeneous nodes}& \mcrot{1}{l}{50}{\footnotesize Homogeneous nodes} & \mcrot{1}{l}{50}{\footnotesize Disjoint sets} & \mcrot{1}{l}{50}{\footnotesize Non-Disjoint sets} & \mcrot{1}{l}{50}{\footnotesize SET K-COVER } & \mcrot{1}{l}{50}{\footnotesize Work in Rounds} & \mcrot{1}{l}{50}{\footnotesize Adjustable Radius} \\
\cmidrule[1pt]{2-14}
-& \tiny Z. Abrams et al. (2004)~\cite{ref114} & & & & & & & & & & & & &\\
+& \tiny Z. Abrams et al. (2004)~\cite{ref114} & \OK &\OK & \OK & & & &\OK & \OK & & \OK & & &\\
-& \tiny M. Cardei and D. Du (2005)~\cite{ref115} & & & & & & & & & & & & &\\
+& \tiny M. Cardei and D. Du (2005)~\cite{ref115} & & \OK & & \OK & & & \OK & \OK & & \OK & & &\\
-& \tiny S. Slijepcevic and M. Potkonjak (2001)~\cite{ref116} & & & & & & & & & & & & &\\
+& \tiny S. Slijepcevic and M. Potkonjak (2001)~\cite{ref116} & & \OK & \OK & & & & \OK & \OK & & \OK & & &\\
-& \tiny Manjun and A. K. Pujari (2011)~\cite{ref117} & & & & & & & & & & & & &\\
+& \tiny Manjun and A. K. Pujari (2011)~\cite{ref117} & & \OK & & \OK & & & \OK & & \OK & & & &\\
-& \tiny M. Yang and J. Liu (2014)~\cite{ref118} & & & & & & & & & & & & &\\
+& \tiny M. Yang and J. Liu (2014)~\cite{ref118} & & \OK & \OK & & & & \OK & & \OK & & & & \\
-& \tiny S. Wang et al. (2010)~\cite{ref144} & & & & & & & & & & & & &\\
+& \tiny S. Wang et al. (2010)~\cite{ref144} & & \OK & \OK & & & & \OK & & \OK & & \OK & & \\
-& \tiny C. Lin et al. (2010)~\cite{ref147} & & & & & & & & & & & & &\\
+& \tiny C. Lin et al. (2010)~\cite{ref147} & & \OK & \OK & & & & \OK & & \OK & & & & \\
-& \tiny S. A. R. Zaidi et al. (2009)~\cite{ref148} & & & & & & & & & & & & &\\
+& \tiny S. A. R. Zaidi et al. (2009)~\cite{ref148} & & \OK & \OK & & & & \OK & & \OK & & & & \\
-& \tiny Y. Li et al. (2011)~\cite{ref142} & & & & & & & & & & & &\\
+& \tiny Y. Li et al. (2011)~\cite{ref142} & & \OK & \OK & & & \OK & \OK & \OK & & \OK & & \OK &\\
-& \tiny H. M. Ammari and S. K. Das (2012)~\cite{ref152} & & & & & & & & & & & & &\\
+& \tiny H. M. Ammari and S. K. Das (2012)~\cite{ref152} & \OK & \OK & \OK & & \OK & & \OK & & \OK & & \OK & &\\
-& \tiny L. Liu et al. (2010)~\cite{ref150} & & & & & & & & & & & & &\\
+& \tiny L. Liu et al. (2010)~\cite{ref150} & & \OK & & \OK & & \OK & & \OK & & \OK & & &\\
-& \tiny H. Cheng et al. (2014)~\cite{ref119} & & & & & & & & & & & & &\\
+& \tiny H. Cheng et al. (2014)~\cite{ref119} & & \OK & \OK & & & & \OK & & \OK & & & &\\
-& \tiny M. Rebai et al. (2014)~\cite{ref141} & & & & & & & & & & & & &\\
+& \tiny M. Rebai et al. (2014)~\cite{ref141} & & \OK & \OK & & & & \OK & & \OK & & & &\\
-& \tiny L. Aslanyan et al. (2013)~\cite{ref151} & & & & & & & & & & & & &\\
+& \tiny L. Aslanyan et al. (2013)~\cite{ref151} & & \OK & \OK & & & & \OK & & \OK & \OK & \OK & &\\
-& \tiny X. Liu et al. (2014)~\cite{ref143} & & & & & & & & & & & & &\\
+& \tiny X. Liu et al. (2014)~\cite{ref143} & & \OK & \OK & & & & \OK & & \OK & \OK & \OK & &\\
-& \tiny F. Castano et al. (2013)~\cite{ref120} & & & & & & & & & & & & &\\
+& \tiny F. Castano et al. (2013)~\cite{ref120} & & \OK & & \OK & & & \OK & & \OK & \OK & & &\\
-& \tiny A. Rossi et al. (2012)~\cite{ref121} & & & & & & & & & & & & &\\
+& \tiny A. Rossi et al. (2012)~\cite{ref121} & & \OK & & \OK & & \OK & \OK & & \OK & \OK & & \OK &\\
-& \tiny K. Deschinkel et al. (2012)~\cite{ref122} & & & & & & & & & & & & &\\
+& \tiny K. Deschinkel et al. (2012)~\cite{ref122} & & \OK & & \OK & & & \OK & & \OK & \OK & & &\\
-\rot{\rlap{Some Proposed Coverage Protocols in previous literatures}}
-& \tiny A. Gallais et al. (2006)~\cite{ref123} & & & & & & & & & & & & &\\
-& \tiny D. Tian and N. D. Georganas (2002)~\cite{ref124} & & & & & & & & & & & & &\\
+& \tiny A. Gallais et al. (2008)~\cite{ref123} & \OK & & \OK & & & \OK & \OK & & \OK & & \OK & \OK &\\
+
+& \tiny D. Tian and N. D. Georganas (2002)~\cite{ref124} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
+
+& \tiny F. Ye et al. (2003)~\cite{ref125} & \OK & & \OK & & & & \OK & & \OK & & & &\\
-& \tiny F. Ye et al. (2003)~\cite{ref125} & & & & & & & & & & & & &\\
+& \tiny H. Zhang and J. C. Hou (2005)~\cite{ref126} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
-& \tiny H. Zhang and J. C. Hou (2005)~\cite{ref126} & & & & & & & & & & & & &\\
+& \tiny W. B. Heinzelman et al. (2002)~\cite{ref109} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
-& \tiny W. B. Heinzelman et al. (2002)~\cite{ref109} & & & & & & & & & & & & &\\
+& \tiny T. Yardibi and E. Karasan (2010)~\cite{ref127} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
-& \tiny T. Yardibi and E. Karasan (2010)~\cite{ref127} & & & & & & & & & & & & &\\
+& \tiny S. K. Prasad and A. Dhawan (2007)~\cite{ref128} & \OK & & & \OK & & & \OK & & \OK & & \OK & &\\
-& \tiny S. K. Prasad and A. Dhawan (2007)~\cite{ref128} & & & & & & & & & & & & &\\
+& \tiny S. Misra et al. (2011)~\cite{ref129} & \OK & & \OK & & & & \OK & & \OK & & & &\\
-& \tiny S. Misra et al. (2011)~\cite{ref129} & & & & & & & & & & & & &\\
+& \tiny P. Berman et al. (2005)~\cite{ref130} & \OK & \OK & \OK & & & & \OK & & \OK & \OK & &\\
-& \tiny P. Berman et al. (2005)~\cite{ref130} & & & & & & & & & & & &\\
+& \tiny J. Lu and T. Suda (2003)~\cite{ref131} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
-& \tiny J. Lu and T. Suda (2003)~\cite{ref131} & & & & & & & & & & & & &\\
-& \tiny J. Cho et al. (2007)~\cite{ref145} & & & & & & & & & & & & &\\
-& \tiny V. T. Quang and T. Miyoshi (2008)~\cite{ref146} & & & & & & & & & & & & &\\
+& \tiny J. Cho et al. (2007)~\cite{ref145} & \OK & & \OK & & & & \OK & & \OK & & & &\\
+
+& \tiny V. T. Quang and T. Miyoshi (2008)~\cite{ref146} & \OK & & \OK & & \OK & & \OK & & \OK & & \OK & &\\
+
+\rot{\rlap{Some Proposed Coverage Protocols in previous literatures}}
-& \tiny D. Dong et al. (2012)~\cite{ref149} & & & & & & & & & & & & &\\
+& \tiny D. Dong et al. (2012)~\cite{ref149} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
-& \tiny B. Wang et al. (2012)~\cite{ref134} & & & & & & & & & & & & &\\
+& \tiny B. Wang et al. (2012)~\cite{ref134} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
-& \tiny Z. Liu et al. (2012)~\cite{ref135} & & & & & & & & & & & & &\\
+& \tiny Z. Liu et al. (2012)~\cite{ref135} & \OK & & \OK & & & & \OK & & \OK & & \OK & &\\
-& \tiny L. Zhang et al. (2013)~\cite{ref136} & & & & & & & & & & & & &\\
+& \tiny L. Zhang et al. (2013)~\cite{ref136} & \OK & & \OK & & & \OK & \OK & & \OK & & \OK & &\\
-& \tiny S. He et al. (2012)~\cite{ref137} & & & & & & & & & & & & &\\
+& \tiny S. He et al. (2012)~\cite{ref137} & \OK & \OK & \OK & & & & \OK & & \OK & & & &\\
-& \tiny Y. Xu et al. (2001)~\cite{ref84} & & & & & & & & & & & & &\\
+& \tiny Y. Xu et al. (2001)~\cite{ref84} & \OK & & \OK & & & & \OK & & \OK & & & &\\
-& \tiny C. Vu et al. (2006)~\cite{ref132} & & & & & & & & & & & & &\\
+& \tiny C. Vu et al. (2006)~\cite{ref132} & \OK & & \OK & & \OK & & \OK & & \OK & & \OK & &\\
&\textbf{\textcolor{red}{ \tiny DiLCO Protocol (2014)}} & \textbf{\textcolor{red}{\OK}} & & \textbf{\textcolor{red}{\OK}} & & & \textbf{\textcolor{red}{\OK}} & \textbf{\textcolor{red}{\OK}} & & & &\textbf{\textcolor{red}{\OK}} & & \\
-&\textbf{\textcolor{red}{ \tiny MuDiLCO Protocol (2014)}} & \textbf{\textcolor{red}{\OK}} & & \textbf{\textcolor{red}{\OK}} & & & \textbf{\textcolor{red}{\OK}} & \textbf{\textcolor{red}{\OK}} & & & &\textbf{\textcolor{red}{\OK}} & & \\
+&\textbf{\textcolor{red}{ \tiny MuDiLCO Protocol (2014)}} & \textbf{\textcolor{red}{\OK}} & & \textbf{\textcolor{red}{\OK}} & & & \textbf{\textcolor{red}{\OK}} & \textbf{\textcolor{red}{\OK}} & & & \textbf{\textcolor{red}{\OK}} &\textbf{\textcolor{red}{\OK}} & & \\
&\textbf{\textcolor{red}{ \tiny LiCO Protocol (2014)}} & \textbf{\textcolor{red}{\OK}} & & \textbf{\textcolor{red}{\OK}} & & & \textbf{\textcolor{red}{\OK}} & \textbf{\textcolor{red}{\OK}} & & & &\textbf{\textcolor{red}{\OK}} & & \\
