PROJECT TITLE :
Reliable and Flexible Detection of Large-Scale Phenomena on Wireless Sensor Networks
This letter proposes a novel mechanism for detecting and tracking giant-scale phenomena like spreading of wild hearth and diffusion of bio-chemical material. The mechanism takes into account a 2-tier grid structure in order to attain flexibility and reliability. For flexibility, the mechanism initially constructs a proactive coarse-grained grid structure on the full sensor field. Then, once a phenomenon happens, fine-grained grid structures are reactively established within cells of the coarse-grained grid structure where the phenomenon can be detected. Moreover, with respect to reliability, small-scale cells of the fine-grained grid structures will give the detailed shape of boundary of the phenomenon; to quickly pander to diffusion of the phenomenon the mechanism prepares fine-grained grid structures into next coarse-grained grid cells toward its diffusion direction.
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