Eduardo Souto,  Cláudia Silva,  Gilson Dourado,  Reinaldo Gomes,  Tatiene Souza,  Judith Kelner,  Djamel H. Sadok. 

The knowledge about the remaining available energy in each part of the network is essential information for the Wireless Sensor Networks (WSN). A simple approach used to get the energy consumption in this type of network is one in which the sensor node periodically sends to the sink node information on its available energy. However, this approach becomes unfeasible, since the amount of energy spent in this solution is prohibitive. The main goal of this work is to apply sampling techniques for the attainment of the energy consumption in WSNs. The results show that the samples are representative and that through them is possible to construct energy maps using only one subgroup of the nodes that compose the network, causing some energy save.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbrc/2005/027.pdf

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