Wireless Sensor Networks Positioning Technology Research Based On Mobile Anchor Node

Node positioning technology is one of the key technologies in wireless sensor network, it is because in wireless sensor network applications, only when the nodes and location of perceived objects is knowable, the node information obtained is meaningful. As the cost of the anchor node is much higher than the normal blind node, and the completion of positioning tasks, the anchor node will usually be useless, the study of related technologies with a small number of mobile anchor nodes in the network through the movement to play a more a static anchor nodes is valuable. In this paper, the study includes introduction of new mobile anchor node positioning algorithm; a precise positioning technology of combination of the statistical error modeling techniques with mobile anchor node positioning technology; the correlation algorithm simulation and performance analysis.In this paper, after the relevant foreign and chinese literature in the field have be done a systematic study and research, the first of all, a new algorithm is proposed to improve a uniform mobile anchor node positioning algorithm based on the equidistance spiral path, it proposes a non-uniform mobile anchor node positioning algorithm of broadcast different number of location information based on the blind node distributed density. The specific work environment of wireless sensor networks is complex and there is a wide range of factors that will affect the positioning ranging of such practical problems, this paper studies the positioning techniques of combination of wireless sensor networks On-line statistical error modeling techniques with mobile anchor node positioning technologies, and propose the self-calibration positioning algorithm of mobile anchor node. Finally, simulation of the algorithm performance.