Research of node deployment strategy for wireless sensor network in deterministic space
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The deployment of wireless sensor network in deterministic space with obstacles is researched.Sensor's detection models and coverage quality evaluation are set up.Based on the probabilistic detection model with false alarm rate,a new deployment method is proposed.Watershed algorithm is employed to choose the deploying sub-area.Then Delaunay triangulation is used to generate the candidate positions for new nodes.Thus,the placement of WSN nodes is realized orderly and efficiently.According to the simulation result,the proposed method can attain better detection probability and coverage uniformity compared with different methods such as random deployment,MAX_MIN_COV and MAX_AVG_COV.