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We confer a four stage heterogeneous energy efficient network model to defines the stage-one, stage-two, stage-three, and stage-four, heterogeneity, in this work. We consider a stable election protocol (SEP) to estimate the network lifetime and accordingly call its implementations as HSEP-1, HSEP-2, HSEP-3, and HSEP-4. The HSEP-1 is the original SEP protocol in which the network contains the same...
The problem of function computation in large scale heterogeneous wireless sensor networks (WSNs) is studied. Suppose sensors are placed in a disk network area with radius , where is a positive constant. The sensors are located heterogeneously around the sink node, i.e., the density of sensors decreases as the distance from the sink node increases. At one instant, each sensor is...
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