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Um Algoritmo de Codificação Diferenciada para Redes de Sensores Sem Fio

Juliana F. S. AquinoEduardo F. NakamuraAntonio A. F. Loureiro

A typical problem of wireless sensors networks is how to collect and send historical information from all sensor nodes to the base station. Due to the resource limitations such as energy, it may be impracticable to transmit a full-resolution data feed from each sensor node. Thus, it is important to apply techniques for the reduction of the data so that the fewest bits can be transmitted in the wireless medium. In this work, a differential coding algorithm for wireless sensor networks is proposed. The algorithm reports just the differences among their readings for a common database. Simulation results reveal that the algorithm has a good performance in applications that the sensor nodes collect similar readings.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbrc/2008/058.pdf

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