Xu, Xu (Grace)Liang, Weifa2015-12-10June 5-9 29781612842332http://hdl.handle.net/1885/59065In this paper we investigate the benefits of placing optimal number of sinks for a wireless sensor network (WSN) to prolong the network lifetime, provided that the number of hops from each sensor to its nearest sink is no more than h ≥ 1 and the sink loKeywords: Average data; Data collection; Energy efficient routing; Joint optimization; Network connectivity; Network lifetime; Network robustness; Network scalability; NP-hardness; Number of hops; Optimal number; Optimization framework; Sensing data; Sub-problems;Placing Optimal Number of Sinks in Sensor Networks for Network Lifetime Maximization201110.1109/icc.2011.59632852016-02-24