PBS: A virtual grid architecture for gradient-based active querying in sensor networks


Every physical event diffuses its effect geographically, which results in perceivable information gradient within the proximity of the phenomenon. In this paper, we propose a novel framework for on-demand query processing that exploits this diffusion property to form a virtual grid-based querying architecture, probe-before-spray (PBS), for wireless sensor… (More)
DOI: 10.1109/CTS.2008.4543906


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