... analyze analyticallythe performance on communication cost with our energy-efficient strategy and conduct simulation studies to evaluatethe energy efficiency and accuracy of our strategy. Our sim-ulation ... number of sink nodes.measure the performance of N-strategy and E-strategy withrespect to number of sink nodes. In this set of experiments,we fix the number of sensors N to 420 and the query distanceH ... Wang,1Hong Va Leong,2Jiannong Cao,2KeithC.C.Chan,2and Alvin T. S. Chan21School of Computer, National University of Defense Technology, Changsha 410073, Hunan, China2Department of...