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\bibitem[\protect\citeauthoryear{Akyildiz, Su, Sankarasubramaniam, and
  Cayirci}{Akyildiz et~al\mbox{.}}{2002}]%
        {akyildiz2002wireless}
{Ian~F Akyildiz}, {Weilian Su}, {Yogesh Sankarasubramaniam}, {and} {Erdal
  Cayirci}. 2002.
\newblock \showarticletitle{Wireless sensor networks: a survey}.
\newblock {\em Computer networks\/} {38}, 4 (2002), 393--422.
\newblock


\bibitem[\protect\citeauthoryear{Anastasi, Conti, Di~Francesco, and
  Passarella}{Anastasi et~al\mbox{.}}{2009}]%
        {anastasi2009energy}
{Giuseppe Anastasi}, {Marco Conti}, {Mario Di~Francesco}, {and} {Andrea
  Passarella}. 2009.
\newblock \showarticletitle{Energy conservation in wireless sensor networks: A
  survey}.
\newblock {\em Ad Hoc Networks\/} {7}, 3 (2009), 537--568.
\newblock


\bibitem[\protect\citeauthoryear{Berman and Calinescu}{Berman and
  Calinescu}{2004}]%
        {berman04}
{P. Berman} {and} {G. Calinescu}. 2004.
\newblock \showarticletitle{Power Efficient Monitoring Management in Sensor
  Networks}. In {\em Proceedings of IEEE Wireless Communication and Networking
  Conference (WCNC'04)}. 2329--2334.
\newblock


\bibitem[\protect\citeauthoryear{Cardei and Du}{Cardei and Du}{2005}]%
        {cardei2005improving}
{Mihaela Cardei} {and} {Ding-Zhu Du}. 2005.
\newblock \showarticletitle{Improving wireless sensor network lifetime through
  power aware organization}.
\newblock {\em Wireless Networks\/} {11}, 3 (2005), 333--340.
\newblock


\bibitem[\protect\citeauthoryear{Cardei, Thai, Li, and Wu}{Cardei
  et~al\mbox{.}}{2005}]%
        {cardei2005energy}
{Mihaela Cardei}, {My~T Thai}, {Yingshu Li}, {and} {Weili Wu}. 2005.
\newblock \showarticletitle{Energy-efficient target coverage in wireless sensor
  networks}. In {\em INFOCOM 2005. 24th Annual Joint Conference of the IEEE
  Computer and Communications Societies. Proceedings IEEE}, Vol.~3. IEEE,
  1976--1984.
\newblock


\bibitem[\protect\citeauthoryear{Casta{\~n}o, Rossi, Sevaux, and
  Velasco}{Casta{\~n}o et~al\mbox{.}}{2013}]%
        {castano2013column}
{Fabian Casta{\~n}o}, {Andr{\'e} Rossi}, {Marc Sevaux}, {and} {Nubia Velasco}.
  2013.
\newblock \showarticletitle{A column generation approach to extend lifetime in
  wireless sensor networks with coverage and connectivity constraints}.
\newblock {\em Computers \& Operations Research\/} (2013).
\newblock


\bibitem[\protect\citeauthoryear{Deng, Jiguo~Yu, and Chen}{Deng
  et~al\mbox{.}}{2012}]%
        {Deng2012}
{Xiu Deng}, {Dongxiao~Yu Jiguo~Yu}, {and} {Congcong Chen}. 2012.
\newblock \showarticletitle{Transforming Area Coverage to Target Coverage to
  Maintain Coverage and Connectivity for Wireless Sensor Networks}.
\newblock {\em International Journal of Distributed Sensor Networks\/}  {2012}
  (2012).
\newblock


\bibitem[\protect\citeauthoryear{Deschinkel}{Deschinkel}{2012}]%
        {deschinkel2012column}
{Karine Deschinkel}. 2012.
\newblock \showarticletitle{A Column Generation based Heuristic to Extend
  Lifetime in Wireless Sensor Network.}
\newblock {\em Sensors \& Transducers Journal\/}  {14-2} (2012), 242--253.
\newblock


\bibitem[\protect\citeauthoryear{Fourer, Gay, and Kernighan}{Fourer
  et~al\mbox{.}}{2002}]%
        {AMPL}
{Robert Fourer}, {David~M. Gay}, {and} {Brian~W. Kernighan}. November 12, 2002.
\newblock {\em AMPL: A Modeling Language for Mathematical Programming\/} (2nd
  ed.).
\newblock Cengage Learning.
\newblock


\bibitem[\protect\citeauthoryear{He, Gong, Zhang, Chen, and Sun}{He
  et~al\mbox{.}}{2014}]%
        {HeShibo}
{Shibo He}, {Xiaowen Gong}, {Junshan Zhang}, {Jiming Chen}, {and} {Youxian
  Sun}. 2014.
\newblock \showarticletitle{Curve-Based Deployment for Barrier Coverage in
  Wireless Sensor Networks}.
\newblock {\em Wireless Communications, IEEE Transactions on\/} {13}, 2
  (February 2014), 724--735.
\newblock
\showISSN{1536-1276}
\showDOI{%
\url{http://dx.doi.org/10.1109/TWC.2013.121813.130198}}


\bibitem[\protect\citeauthoryear{Huang and Tseng}{Huang and Tseng}{2005a}]%
        {Huang:2003:CPW:941350.941367}
{C.-F. Huang} {and} {Y.-C. Tseng}. 2005a.
\newblock \showarticletitle{The Coverage Problem in a Wireless Sensor Network}.
\newblock {\em Mobile Networks and Applications\/} {10}, 4 (2005), 519--528.
\newblock


\bibitem[\protect\citeauthoryear{Huang and Tseng}{Huang and Tseng}{2005b}]%
        {huang2005coverage}
{Chi-Fu Huang} {and} {Yu-Chee Tseng}. 2005b.
\newblock \showarticletitle{The coverage problem in a wireless sensor network}.
\newblock {\em Mobile Networks and Applications\/} {10}, 4 (2005), 519--528.
\newblock


\bibitem[\protect\citeauthoryear{Idrees, Deschinkel, Salomon, and
  Couturier}{Idrees et~al\mbox{.}}{2014a}]%
        {idrees2014coverage}
{Ali~Kadhum Idrees}, {Karine Deschinkel}, {Michel Salomon}, {and} {Rapha{\"e}l
  Couturier}. 2014a.
\newblock \showarticletitle{Coverage and Lifetime Optimization in Heterogeneous
  Energy Wireless Sensor Networks}. In {\em ICN 2014, The Thirteenth
  International Conference on Networks}. 49--54.
\newblock


\bibitem[\protect\citeauthoryear{Idrees, Deschinkel, Salomon, and
  Couturier}{Idrees et~al\mbox{.}}{2014b}]%
        {Idrees2}
{Ali~Kadhum Idrees}, {Karine Deschinkel}, {Michel Salomon}, {and} {Rapha{\"e}l
  Couturier}. 2014b.
\newblock {\em Distributed Lifetime Coverage Optimization Protocol in Wireless
  Sensor Networks}.
\newblock {T}echnical {R}eport DISC2014-X. University of Franche-Comte -
  FEMTO-ST Institute, DISC Research Department.
\newblock


\bibitem[\protect\citeauthoryear{Jaggi and Abouzeid}{Jaggi and
  Abouzeid}{2006}]%
        {jaggi2006}
{N. Jaggi} {and} {A.A. Abouzeid}. 2006.
\newblock \showarticletitle{Energy-efficient Connected Covereage in Wireless
  Sensor Networks}. In {\em Proceeding of 4th Asian International Mobile
  Computing Conference AMOC2006}.
\newblock


\bibitem[\protect\citeauthoryear{Kim and Cobb}{Kim and Cobb}{2013}]%
        {kim2013maximum}
{Hyunbum Kim} {and} {Jorge~A Cobb}. 2013.
\newblock \showarticletitle{Maximum lifetime of reinforced barrier-coverage in
  Wireless Sensor Networks}. In {\em Networks (ICON), 2013 19th IEEE
  International Conference on}. IEEE, 1--6.
\newblock


\bibitem[\protect\citeauthoryear{Lee, Gallagher, Silvern, Wuu, and Zaider}{Lee
  et~al\mbox{.}}{1999}]%
        {0031-9155-44-1-012}
{Eva~K Lee}, {Richard~J Gallagher}, {David Silvern}, {Cheng-Shie Wuu}, {and}
  {Marco Zaider}. 1999.
\newblock \showarticletitle{Treatment planning for brachytherapy: an integer
  programming model, two computational approaches and experiments with
  permanent prostate implant planning}.
\newblock {\em Physics in Medicine and Biology\/} {44}, 1 (1999), 145.
\newblock
\showURL{%
\url{http://stacks.iop.org/0031-9155/44/i=1/a=012}}


\bibitem[\protect\citeauthoryear{Li and Vasilakos}{Li and Vasilakos}{2013}]%
        {li2013survey}
{Mo Li} {and} {Athanasios~V Vasilakos}. 2013.
\newblock \showarticletitle{A Survey on Topology Control in Wireless Sensor
  Networks: Taxonomy, Comparative Study, and Open Issues}.
\newblock {\it Proc. IEEE} {101}, 12 (2013).
\newblock


\bibitem[\protect\citeauthoryear{Ling and Znati}{Ling and Znati}{2009}]%
        {ling2009energy}
{Hui Ling} {and} {Taieb Znati}. 2009.
\newblock \showarticletitle{Energy efficient adaptive sensing for dynamic
  coverage in wireless sensor networks}. In {\em Wireless Communications and
  Networking Conference, 2009. WCNC 2009. IEEE}. IEEE, 1--6.
\newblock


\bibitem[\protect\citeauthoryear{Makhorin}{Makhorin}{2012}]%
        {glpk}
{Andrew Makhorin}. 2012.
\newblock \showarticletitle{The GLPK (GNU Linear Programming Kit)}.
\newblock {\em Available: https://www.gnu.org/software/glpk/\/} (2012).
\newblock


\bibitem[\protect\citeauthoryear{Misra, Kumar, and Obaidat}{Misra
  et~al\mbox{.}}{2011}]%
        {Misra}
{S. Misra}, {M.~P. Kumar}, {and} {M.~S. Obaidat}. 2011.
\newblock \showarticletitle{Connectivity preserving localized coverage
  algorithm for area monitoring using wireless sensor networks}.
\newblock {\em Computer Communications\/} {34}, 12 (2011), 1484--1496.
\newblock


\bibitem[\protect\citeauthoryear{Padmavathy and Chitra}{Padmavathy and
  Chitra}{2010}]%
        {pc10}
{T.V. Padmavathy} {and} {M. Chitra}. 2010.
\newblock \showarticletitle{Extending the Network Lifetime of Wireless Sensor
  Networks Using Residual Energy Extraction-Hybrid Scheduling Algorithm}.
\newblock {\em Int. J. of Communications, Network and System Sciences\/} {3}, 1
  (2010), 98--106.
\newblock


\bibitem[\protect\citeauthoryear{Puccinelli and Haenggi}{Puccinelli and
  Haenggi}{2005}]%
        {puccinelli2005wireless}
{Daniele Puccinelli} {and} {Martin Haenggi}. 2005.
\newblock \showarticletitle{Wireless sensor networks: applications and
  challenges of ubiquitous sensing}.
\newblock {\em Circuits and Systems Magazine, IEEE\/} {5}, 3 (2005), 19--31.
\newblock


\bibitem[\protect\citeauthoryear{Pujari}{Pujari}{2011}]%
        {pujari2011high}
{Arun~K Pujari}. 2011.
\newblock \showarticletitle{High-Energy-First (HEF) Heuristic for
  Energy-Efficient Target Coverage Problem.}
\newblock {\em International Journal of Ad Hoc, Sensor \& Ubiquitous
  Computing\/} {2}, 1 (2011).
\newblock


\bibitem[\protect\citeauthoryear{Qu and Georgakopoulos}{Qu and
  Georgakopoulos}{2013}]%
        {qu2013distributed}
{Yipeng Qu} {and} {Stavros~V Georgakopoulos}. 2013.
\newblock \showarticletitle{A distributed area coverage algorithm for
  maintenance of randomly distributed sensors with adjustable sensing range}.
  In {\em Global Communications Conference (GLOBECOM), 2013 IEEE}. IEEE,
  286--291.
\newblock


\bibitem[\protect\citeauthoryear{Rault, Bouabdallah, and Challal}{Rault
  et~al\mbox{.}}{2014}]%
        {rault2014energy}
{Tifenn Rault}, {Abdelmadjid Bouabdallah}, {and} {Yacine Challal}. 2014.
\newblock \showarticletitle{Energy efficiency in wireless sensor networks: A
  top-down survey}.
\newblock {\em Computer Networks\/}  {67} (2014), 104--122.
\newblock


\bibitem[\protect\citeauthoryear{Rossi, Singh, and Sevaux}{Rossi
  et~al\mbox{.}}{2012}]%
        {rossi2012exact}
{Andr{\'e} Rossi}, {Alok Singh}, {and} {Marc Sevaux}. 2012.
\newblock \showarticletitle{An exact approach for maximizing the lifetime of
  sensor networks with adjustable sensing ranges}.
\newblock {\em Computers \& Operations Research\/} {39}, 12 (2012), 3166--3176.
\newblock


\bibitem[\protect\citeauthoryear{Tian and Georganas}{Tian and
  Georganas}{2002}]%
        {Tian02}
{Di Tian} {and} {Nicolas~D. Georganas}. 2002.
\newblock \showarticletitle{A coverage-preserving node scheduling scheme for
  large wireless sensor networks}. In {\em Proceedings of the 1st ACM
  international workshop on Wireless sensor networks and applications} {\em
  (WSNA '02)}. ACM, 32--41.
\newblock


\bibitem[\protect\citeauthoryear{Varga}{Varga}{2003}]%
        {varga}
{A. Varga}. 2003.
\newblock \showarticletitle{OMNeT++ Discrete Event Simulation System}.
\newblock {\em Available: http://www.omnetpp.org\/} (2003).
\newblock


\bibitem[\protect\citeauthoryear{Vu, Gao, Deshmukh, and Li}{Vu
  et~al\mbox{.}}{2006}]%
        {ChinhVu}
{Chinh Vu}, {Shan Gao}, {Wiwek Deshmukh}, {and} {Yingshu Li}. 2006.
\newblock \showarticletitle{Distributed Energy-Efficient Scheduling Approach
  for K-Coverage in Wireless Sensor Networks}.
\newblock {\em MILCOM\/}  {0} (2006), 1--7.
\newblock
\showISBNx{1-4244-0617-X}
\showDOI{%
\url{http://dx.doi.org/10.1109/MILCOM.2006.302146}}


\bibitem[\protect\citeauthoryear{Vu}{Vu}{2009}]%
        {chin2007}
{C.~T. Vu}. 2009.
\newblock {\em Distributed energy-efficient solutions for area coverage
  problems in wireless sensor networks}.
\newblock Ph.D. Dissertation. Georgia State University.
\newblock


\bibitem[\protect\citeauthoryear{Wang}{Wang}{2011}]%
        {wang2011coverage}
{Bang Wang}. 2011.
\newblock \showarticletitle{Coverage problems in sensor networks: A survey}.
\newblock {\em ACM Computing Surveys (CSUR)\/} {43}, 4 (2011), 32.
\newblock


\bibitem[\protect\citeauthoryear{Xing, Li, and Wang}{Xing
  et~al\mbox{.}}{2010}]%
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{Xiaofei Xing}, {Jie Li}, {and} {Guojun Wang}. 2010.
\newblock \showarticletitle{Integer Programming Scheme for Target Coverage in
  Heterogeneous Wireless Sensor Networks}. In {\em Mobile Ad-hoc and Sensor
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\newblock
\showDOI{%
\url{http://dx.doi.org/10.1109/MSN.2010.18}}


\bibitem[\protect\citeauthoryear{Xu, Heidemann, and Estrin}{Xu
  et~al\mbox{.}}{2001}]%
        {xu2001geography}
{Ya Xu}, {John Heidemann}, {and} {Deborah Estrin}. 2001.
\newblock \showarticletitle{Geography-informed energy conservation for ad hoc
  routing}. In {\em Proceedings of the 7th annual international conference on
  Mobile computing and networking}. ACM, 70--84.
\newblock


\bibitem[\protect\citeauthoryear{Yan, Gu, He, and Stankovic}{Yan
  et~al\mbox{.}}{2008}]%
        {yan2008design}
{Ting Yan}, {Yu Gu}, {Tian He}, {and} {John~A Stankovic}. 2008.
\newblock \showarticletitle{Design and optimization of distributed sensing
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\newblock {\em ACM Transactions on Embedded Computing Systems (TECS)\/} {7}, 3
  (2008), 33.
\newblock


\bibitem[\protect\citeauthoryear{Yang and Chin}{Yang and Chin}{2014a}]%
        {yang2014novel}
{Changlin Yang} {and} {Kwan-Wu Chin}. 2014a.
\newblock \showarticletitle{Novel Algorithms for Complete Targets Coverage in
  Energy Harvesting Wireless Sensor Networks}.
\newblock {\em Communications Letters, IEEE\/} {18}, 1 (January 2014),
  118--121.
\newblock
\showISSN{1089-7798}
\showDOI{%
\url{http://dx.doi.org/10.1109/LCOMM.2013.111513.132436}}


\bibitem[\protect\citeauthoryear{Yang and Chin}{Yang and Chin}{2014b}]%
        {yangnovel}
{Changlin Yang} {and} {Kwan-Wu Chin}. 2014b.
\newblock \showarticletitle{A Novel Distributed Algorithm for Complete Targets
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  2014- Ad-hoc and Sensor Networking Symposium}. IEEE, 361--366.
\newblock


\bibitem[\protect\citeauthoryear{Yang and Liu}{Yang and Liu}{2014}]%
        {Yang2014}
{Mengmeng Yang} {and} {Jie Liu}. 2014.
\newblock \showarticletitle{A Maximum Lifetime Coverage Algorithm Based on
  Linear Programming}.
\newblock {\em Journal of Information Hiding an dMultimedia Signal Processing,
  Ubiquitous International\/} {5}, 2 (2014), 296--301.
\newblock


\bibitem[\protect\citeauthoryear{Yick, Mukherjee, and Ghosal}{Yick
  et~al\mbox{.}}{2008}]%
        {yick2008wireless}
{Jennifer Yick}, {Biswanath Mukherjee}, {and} {Dipak Ghosal}. 2008.
\newblock \showarticletitle{Wireless sensor network survey}.
\newblock {\em Computer networks\/} {52}, 12 (2008), 2292--2330.
\newblock


\bibitem[\protect\citeauthoryear{Zhang and Hou}{Zhang and Hou}{2005}]%
        {Zhang05}
{H. Zhang} {and} {J.~C. Hou}. 2005.
\newblock \showarticletitle{Maintaining Sensing Coverage and Connectivity in
  Large Sensor Networks}.
\newblock {\em Ad Hoc {\&} Sensor Wireless Networks\/} {1}, 1-2 (2005).
\newblock


\bibitem[\protect\citeauthoryear{Zhou, Das, and Gupta}{Zhou
  et~al\mbox{.}}{2009}]%
        {zhou2009variable}
{Zongheng Zhou}, {Samir~R Das}, {and} {Himanshu Gupta}. 2009.
\newblock \showarticletitle{Variable radii connected sensor cover in sensor
  networks}.
\newblock {\em ACM Transactions on Sensor Networks (TOSN)\/} {5}, 1 (2009), 8.
\newblock


\bibitem[\protect\citeauthoryear{Zorbas, Glynos, Kotzanikolaou, and
  Douligeris}{Zorbas et~al\mbox{.}}{2010}]%
        {zorbas2010solving}
{Dimitrios Zorbas}, {Dimitris Glynos}, {Panayiotis Kotzanikolaou}, {and}
  {Christos Douligeris}. 2010.
\newblock \showarticletitle{Solving coverage problems in wireless sensor
  networks using cover sets}.
\newblock {\em Ad Hoc Networks\/} {8}, 4 (2010), 400--415.
\newblock


\end{thebibliography}