\iffalse

@INPROCEEDINGS{Moore99,
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@BOOK{Smith98,
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@ARTICLE{Zhixin,
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@ARTICLE{Bang,
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@book{Akyildiz02,
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@book{Sudip03,
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@ARTICLE{Zhang05,
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}

@ARTICLE{HeinzelmanCB02,
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@inproceedings{pedraza2006,
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	title = {Efficient coverage algorithms for wireless sensor networks},	
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@PhDThesis{chin2007,
author = {C. T. Vu},
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@ARTICLE{die09,
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@ARTICLE{mulligan2010coverage,
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@phdthesis{vu2009distributed,
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  year={2009},
  school={GEORGIA STATE UNIVERSITY}
}


@ARTICLE{raghunathan2002energy,
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@ARTICLE{ChinhVu,
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year = {2006},
pages = {1-7},
doi = {http://doi.ieeecomputersociety.org/10.1109/MILCOM.2006.302146},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}


@ARTICLE{ghosh2008coverage,
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@ARTICLE{yang2014novel, 
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volume={18}, 
number={1}, 
pages={118-121}, 
keywords={energy harvesting;linear programming;secondary cells;telecommunication power supplies;wireless sensor networks;MUA;WSN;activation schedule;complete targets coverage;energy conservation;energy harvesting wireless sensor networks;linear programming based solution;maximum utility algorithm;network lifetime maximization problem;recharging opportunities;sensor nodes;sleep state;time interval;wake-up schedule;Batteries;Energy harvesting;Erbium;Monitoring;Schedules;Sensors;Wireless sensor networks;Wireless sensor network;energy harvesting;targets coverage}, 
doi={10.1109/LCOMM.2013.111513.132436}, 
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@ARTICLE{HeShibo, 
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year={2014}, 
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number={2}, 
pages={724-735}, 
keywords={Algorithm design and analysis;Approximation algorithms;Approximation methods;Educational institutions;Sensors;Wireless communication;Wireless sensor networks;Barrier coverage;curved-based deployment;deployment algorithms;optimal deployment curve}, 
doi={10.1109/TWC.2013.121813.130198}, 
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@inproceedings{Zorbas2007,
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} 

@ARTICLE{zorbas2010solving,
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@INPROCEEDINGS{Slijepcevic01powerefficient,
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@ARTICLE{cardei2006energy,
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@inproceedings{cardei2005energy,
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@ARTICLE{cardei2005improving,
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@inproceedings{abrams2004set,
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@ARTICLE{pujari2011high,
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@inproceedings{Gallais06,
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@inproceedings{Tian02,
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@inproceedings{Ye03,
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@INPROCEEDINGS{Berman05efficientenergy,
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@inproceedings{cardei2005maximum,
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@article{wang2010clique,
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@article{yardibi2010distributed,
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@article{conti2014mobile,
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@inproceedings{idrees2014coverage,
  title={Coverage and Lifetime Optimization in Heterogeneous Energy Wireless Sensor Networks},
  author={Idrees, Ali Kadhum and Deschinkel, Karine and Salomon, Michel and Couturier, Rapha{\"e}l},
  booktitle={ICN 2014, The Thirteenth International Conference on Networks},
  pages={49--54},
  year={2014}
}

@inproceedings{xu2001geography,
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@article{zhou2009variable,
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@article{wang2009parallel,
  title={Parallel energy-efficient coverage optimization with maximum entropy clustering in wireless sensor networks},
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@article{yan2008design,
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@article{he2012leveraging,
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  author={He, Shibo and Chen, Jiming and Li, Xu and Shen, Xuemin and Sun, Youxian},
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  volume={23},
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  year={2012},
  publisher={IEEE}
}

@article{esnaashari2010learning,
  title={A learning automata based scheduling solution to the dynamic point coverage problem in wireless sensor networks},
  author={Esnaashari, Mehdi and Meybodi, Mohammad Reza},
  journal={Computer Networks},
  volume={54},
  number={14},
  pages={2410--2438},
  year={2010},
  publisher={Elsevier}
}


@ARTICLE{Misra,
 author = "S. Misra and M. P. Kumar and M. S. Obaidat",
 title = "Connectivity preserving localized coverage algorithm for area monitoring using
wireless sensor networks ",
 JOURNAL = {Computer Communications},
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 NUMBER = {12},
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 YEAR = {2011},
}

 


@article{rizvi2012a1,
  title={A1: An energy efficient topology control algorithm for connected area coverage in wireless sensor networks},
  author={Rizvi, Sajjad and Qureshi, Hassaan Khaliq and Ali Khayam, Syed and Rakocevic, Veselin and Rajarajan, Muttukrishnan},
  journal={Journal of Network and Computer Applications},
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@article{tran2009novel,
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@ARTICLE{wang2011coverage,
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  year={2011},
  publisher={ACM}
}


@article{luo2014parameterized,
  title={Parameterized complexity of max-lifetime target coverage in wireless sensor networks},
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  year={2014},
  publisher={Elsevier}
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@article{jarray2013lagrangean,
  title={A Lagrangean-based heuristics for the target covering problem in wireless sensor network},
  author={Jarray, Fethi},
  journal={Applied Mathematical Modelling},
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  pages={6780--6785},
  year={2013},
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}

@article{naderan2013sensing,
  title={Sensing task assignment via sensor selection for maximum target coverage in WSNs},
  author={Naderan, Marjan and Dehghan, Mehdi and Pedram, Hossein},
  journal={Journal of Network and Computer Applications},
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@article{erdelj2013multiple,
  title={Multiple point of interest discovery and coverage with mobile wireless sensors},
  author={Erdelj, Milan and Loscri, Valeria and Natalizio, Enrico and Razafindralambo, Tahiry},
  journal={Ad Hoc Networks},
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  pages={2288--2300},
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@article{tian2014distributed,
  title={Distributed Multitarget Probabilistic Coverage Control Algorithm for Wireless Sensor Networks},
  author={Tian, Ying and Ou, Yang and Hamid, Reza Karimi and Liu, Yan Tao and Han, Jian Qun},
  journal={Mathematical Problems in Engineering},
  volume={2014},
  pages={1--8},
  year={2014},
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@article{castano2013column,
  title={A column generation approach to extend lifetime in wireless sensor networks with coverage and connectivity constraints},
  author={Casta{\~n}o, Fabian and Rossi, Andr{\'e} and Sevaux, Marc and Velasco, Nubia},
  journal={Computers \& Operations Research},
  year={2013},
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@article{yu2013cwsc,
  title={CWSC: Connected< i> k</i>-coverage working sets construction algorithm in wireless sensor networks},
  author={Yu, Jiguo and Deng, Xiu and Yu, Dongxiao and Wang, Guanghui and Gu, Xin},
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  number={11},
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@article{cheng2014achieving,
  title={Achieving Asymmetric Sensing Coverage for Duty Cycled Wireless Sensor Networks},
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  year={2014},
  publisher={IEEE}
}

@article{yang2013energy,
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  publisher={IEEE}
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@inproceedings{kim2013maximum,
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  author={Kim, Hyunbum and Cobb, Jorge A},
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  year={2013},
  organization={IEEE}
}



@inproceedings{chang2012joint,
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  booktitle={Ubiquitous and Future Networks (ICUFN), 2012 Fourth International Conference on},
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  year={2012},
  organization={IEEE}
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@inproceedings{al2013energy,
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@inproceedings{kim2012sleep,
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@article{li2013survey,
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@inproceedings{wang2007energy,
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@inproceedings{vu2009delaunay,
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@article{yang2014energy,
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@inproceedings{ling2009energy,
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@inproceedings{diongue2013alarm,
  title={ALARM: An energy aware sleep scheduling algorithm for lifetime maximization in wireless sensor networks},
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  year={2013},
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@INPROCEEDINGS{shi2009, 
author={Qinghua Shi and Xiaozhen Wei and Yu Peng and Shiqian Li}, 
booktitle={Computer Network and Multimedia Technology, 2009. CNMT 2009. International Symposium on}, 
title={An Energy-Efficient Central-Scheduling Scheme in Wireless Sensor Networks}, 
year={2009}, 
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pages={1-4}, 
}

@inproceedings{qu2013distributed,
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keywords={energy conservation;integer programming;wireless sensor networks;ETCA;clustered configurations;clusterheads;energy first algorithm;energy-efficient target coverage algorithm;heterogeneous wireless sensor networks;integer programming;network lifetime;polytype target coverage;sensor node;Algorithm design and analysis;Clustering algorithms;Energy consumption;Logic gates;Sensors;Simulation;Wireless sensor networks;Heterogeneous wireless sensor networks;network lifetime;optimization;target coverage},
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