WSN Node Localization Algorithm Based On Range Free Localization

Wireless sensor network target tracking node selection has a significant impact on the life cycle of wireless sensor networks, therefore this paper proposes a tracking node selection algorithm with tracking quality assurance. First, analyzes three elements wich have impact on residual energy of node lifetime , energy consumption of target tracking task execution and possibility of node sends false alarms. Secondly, put forward the node selection problem of optimizing the network lifetime u nder the premise of ensuring tracking quality requirements, and gives two kinds of node selection algorithm. Finally, study the establishment and maintenance of dynamic tracking sub-tree to support the proposed node selection algorithm. So far, this is the first research work which considers the target tracking of maximum network lifetime.