-\bibcite{ChinhVu}{{31}{2006}{{Vu et~al.}}{{Vu, Gao, Deshmukh, and Li}}}
-\bibcite{chin2007}{{32}{2009}{{Vu}}{{}}}
-\bibcite{wang2011coverage}{{33}{2011}{{Wang}}{{}}}
-\bibcite{5714480}{{34}{2010}{{Xing, Li, and Wang}}{{}}}
-\bibcite{xu2001geography}{{35}{2001}{{Xu, Heidemann, and Estrin}}{{}}}
-\bibcite{yan2008design}{{36}{2008}{{Yan et~al.}}{{Yan, Gu, He, and Stankovic}}}
-\bibcite{yang2014novel}{{37}{2014{a}}{{Yang and Chin}}{{}}}
-\bibcite{yangnovel}{{38}{2014{b}}{{Yang and Chin}}{{}}}
-\bibcite{Yang2014}{{39}{2014}{{Yang and Liu}}{{}}}
-\bibcite{yick2008wireless}{{40}{2008}{{Yick, Mukherjee, and Ghosal}}{{}}}
-\bibcite{Zhang05}{{41}{2005}{{Zhang and Hou}}{{}}}
-\bibcite{zhou2009variable}{{42}{2009}{{Zhou, Das, and Gupta}}{{}}}
-\bibcite{zorbas2010solving}{{43}{2010}{{Zorbas et~al.}}{{Zorbas, Glynos, Kotzanikolaou, and Douligeris}}}
-\endpage{19}
+\bibcite{vu2009universal}{{31}{2009}{{Vu et~al.}}{{Vu, Chen, Zhao, and Li}}}
+\bibcite{ChinhVu}{{32}{2006}{{Vu et~al.}}{{Vu, Gao, Deshmukh, and Li}}}
+\bibcite{chin2007}{{33}{2009}{{Vu}}{{}}}
+\bibcite{wang2011coverage}{{34}{2011}{{Wang}}{{}}}
+\bibcite{wang2014keeping}{{35}{2014}{{Wang et~al.}}{{Wang, Yang, Lin, and Lin}}}
+\bibcite{5714480}{{36}{2010}{{Xing, Li, and Wang}}{{}}}
+\bibcite{xu2001geography}{{37}{2001}{{Xu, Heidemann, and Estrin}}{{}}}
+\bibcite{yan2008design}{{38}{2008}{{Yan et~al.}}{{Yan, Gu, He, and Stankovic}}}
+\bibcite{yang2014novel}{{39}{2014{a}}{{Yang and Chin}}{{}}}
+\bibcite{yangnovel}{{40}{2014{b}}{{Yang and Chin}}{{}}}
+\bibcite{Yang2014}{{41}{2014}{{Yang and Liu}}{{}}}
+\bibcite{yick2008wireless}{{42}{2008}{{Yick, Mukherjee, and Ghosal}}{{}}}
+\bibcite{Zhang05}{{43}{2005}{{Zhang and Hou}}{{}}}
+\bibcite{zhou2009variable}{{44}{2009}{{Zhou, Das, and Gupta}}{{}}}
+\bibcite{zorbas2010solving}{{45}{2010}{{Zorbas et~al.}}{{Zorbas, Glynos, Kotzanikolaou, and Douligeris}}}
+\endpage{20}