Motility-based coverage enhancement in directional sensor networks

Random deployment may cause to the overlapped areas in directional sensor networks. The proposed algorithm Weighted Attraction Forces of Uncovered Points (W-AFUP), aims at both minimizing the overlapped areas and facing the working directions towards the area of interest. W-AFUP is a distributed iterative algorithm which exploits motility capability of the nodes. The proposed algorithm finds the appropriate working direction for each sensor node by using the repel forces exerted by the uncovered points around the sensor nodes. W-AFUP improves the coverage by %19-%37 after the initial deployment.