In this paper, efficient
sensor deployment strategies are developed to increase coverage in
wireless mobile sensor networks. The sensors find coverage holes
within their Voronoi polygons and then move in an appropriate
direction to minimize them. Novel edge-based and vertex-based
strategies are introduced, and their performances are compared with
existing techniques. The proposed movement strategies are based on
the distances of each sensor and the points inside its Voronoi
polygon from the edges or vertices of the polygon. Simulations
confirm the effectiveness of the proposed deployment algorithms and
their superiority to the techniques reported in the literature.
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