Low-power anchor node rotation method in mobile ad hoc network

The invention discloses a low-power anchor node rotation method in a mobile ad hoc network. The method comprises the following steps that step 1.all nodes collect own positions and residual energy information to an anchor node which is closest to a network center in the mobile ad hoc network which divides node roles. According to the method disclosed by the invention, when an anchor node rotation condition is evaluated, a distance condition between each user node and the associated anchor node is considered, so that a problem of high communication energy consumption caused by too large communication distance is avoided, and a comparison condition of average residual energy of the anchor nodes and the user nodes is also considered, when the energy consumption of the anchor nodes is larger, the anchor node rotation is carried out timely, so that the energy consumption fairness between the nodes is guaranteed, and furthermore, through considering the residual energy of each candidate node in a process of selecti