STUDY OF HETEROGENEOUS ENERGY MODELS IN WIRELESS SENSOR NETWORKS

Parveen Kumar

Abstract


Wireless sensor networks (WSNs) are separated into two categories based on their sensor nodes as homogeneous sensor networks and heterogeneous sensor networks. Recently, various heterogeneous energy models are discussed in which sensor nodes have different level of energy. In this paper, various heterogeneous energy models, which consist of two-level, three-level, four-level, and multi-level heterogeneity are discussed. The categorization of number of nodes and their respective energies for all the levels are also discussed. Furthermore, as the level of heterogeneity increases, the lifetime of the network also increases.


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